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elcereza · 11 months
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Transferência de Arquivos via LoRa
Um projeto que venho fazendo há alguns meses e que muitas pessoas estavam interessadas em transmitir imagens e agora será possível, mas claro, respeitando as limitações.
Transferência da arquivos via LoRa é possível assim como qualquer outra modulação, mas existem desafios particulares nessa tarefa que em outras modulações podem ser mais fáceis.  Sobre a modulação LoRa Antes mesmo de partimos para a transferência de arquivos via LoRa, é preciso entender que o LoRa não foi feito para esse tipo de aplicação e sim para dispositivos IoT, mesmo embora tenha uma taxa…
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radioclubodessa · 3 months
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Интересные сслки
1.Durable 2-Meter Yagi Antenna: PVC and Window Line Construction 2.APRS LoRa Weather Station 3.The CW Flea: Modern Morse Transmitter with Arduino 4.TxTopper QRP Amplifier 5.Enhancing Performance with a Cage Dipole for Six Meter Band 6.AI-Powered... Читать дальше »
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Here are the capabilities so far of our Inhouse design of the Rocket Flight Computer. This flight computer is designed for rockets 38mm in diameter or greater and will fit inside a 38mm tube coupler. Dimensions are 4.0in x 1.25in x 0.5in, not including the antenna more or less Flight-ready for supersonic flights to over 24K feet and Mach 2.0. For large or high-power projects, a commercially available backup computer is strongly recommended. --------FEATURES---------- Full-featured dual deploy/multi-stage/air start rocket flight computer capable of 100,000ft or more Tilt-sensing lockout for ignition of second stages and/or air starts Live telemetry over fil NRF24L01+PA+LNA compatibles with Arduino – 2 Mbit/s – 1100 metres And Bluetooth BLE 6 high-current pyro outputs with continuity checks Advanced MEMS sensor package: GNSS, accelerometers, gyroscope, magnetometer, barometer, and LoRa radio High Data-Capture rate: approximately 50,000 samples per second recorded to SD card --1000Hz 3-axis digital 24G and 100G accelerometer data logging --1000Hz 3-axis digital 2000dps gyroscope data logging --1000Hz of flight events & continuity data logging --1000Hz of sensor-fuzed speed & altitude --100Hz of pitch, yaw, roll rotation --40Hz of of magnetic data logging and magnetic roll --30Hz-100Hz of digital barometric data logging (Altitude, pressure, temperature) --30Hz of main battery voltage (1400Hz during pyro events) --5Hz-25Hz of GNSS data logging (chip-dependent data rates & constellations) --Separate data file for each flight up to 100 flights Simple, easy-to-use configuration interface through the SD card --User Selectable Flight Mode: Single-Stage, Two-Stage, Air start, or Booster --Configurable Apogee delay --Optional Audible Battery Voltage report at startup --Optional Magnetic Switch Startup & Shut-down --Pre-flight audible reporting options: Perfect flight or Marsa --User selectable telemetry frequency & power settings --8 configurable servo outputs (8 powered) +4 Multy prepose --User-selectable inflight brownout recovery Mach immune, sensor-fusion-based apogee event Barometric-based main deploy event Audible pre-flight continuity report Audible Post-flight max altitude & speed report Mount in any orientation, automatic orientation detection with built-in self-calibration mode Bench-test mode activated w/ tactile button, user configurable status messages over USB Serial A report in SI or Metric units Compatible with Teensy 4.1 --Connect any sensor to any available I2C or SPI bus --Create your own custom setup with configurable pins for continuity, firing, and servos --Connect UBLOX GPS unit to any available HW Serial port From OpenAI: Incorrect API key provided.
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biggelectronics · 1 year
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Long-Range IoT Communication with LoRa Modules: SX1278 and ESP32 with Display
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SX1278 LoRa Module
The SX1278 LoRa module is a popular choice among developers due to its low power consumption, long-range capabilities, and support for multiple frequency bands. It is based on the Semtech SX1278 chip, which is a low-power, long-range transceiver designed for use in the Industrial, Scientific, and Medical (ISM) frequency bands. The module operates in the 433MHz frequency band and has a range of up to 5 km in open space.
The SX1278 LoRa module can be easily integrated into a variety of applications, including Internet of Things (IoT) devices, smart cities, and remote monitoring systems. It supports a wide range of data rates, from 300 bps to 37.5 kbps, and has a programmable output power up to +20 dBm.
One of the key advantages of the SX1278 LoRa module is its low power consumption. It has a sleep mode that consumes only 0.1 µA of current, making it an ideal choice for battery-powered applications. The module also has a built-in temperature sensor and a low battery detector, which can be used to optimize power consumption and extend battery life.
ESP32 LoRa with Display SX1278
The ESP32 LoRa with Display SX1278 is a popular implementation of the SX1278 LoRa module. It combines the low power consumption and long-range capabilities of the SX1278 with the processing power and connectivity features of the ESP32 microcontroller. The module has a 128x64 OLED display, which can be used to display sensor readings, status messages, and other information.
The ESP32 LoRa with Display SX1278 is compatible with the Arduino IDE and can be programmed using the Arduino programming language. It has a built-in WiFi and Bluetooth connectivity, which allows it to connect to other devices and the Internet. The module also has a built-in antenna, which simplifies the integration process and reduces the overall size of the device.
One of the key features of the ESP32 LoRa with Display SX1278 is its ease of use. It comes with a preloaded firmware that can be easily customized using the Arduino IDE. The firmware includes support for LoRaWAN, a popular protocol for building large-scale IoT networks. The module can also be used with other LoRa protocols, such as LoRa-MAC, LoRa-RAW, and LoRa-P2P.
ESP32 LoRa with Display SX1276
The ESP32 LoRa with Display SX1276 is another popular implementation of the ESP32 LoRa module, but this time with the SX1276 chip. The module operates in the 868 MHz frequency band and has a range of up to 10 km in open space. Like the SX1278 module, it has a low power consumption and can be used in a variety of applications, including smart agriculture, environmental monitoring, and asset tracking.
The ESP32 LoRa with Display SX1276 has a 128x64 OLED display, which can be used to display sensor readings and other information. It also has a built-in antenna and a WiFi/Bluetooth connectivity, which allows it to connect to other devices and the Internet.
One of the key advantages of the ESP32 LoRa with Display SX1276 is its compatibility with the Arduino IDE. It can be programmed using the Arduino programming language and comes with a preloaded firmware that can be easily customized. The firmware includes support for LoRaWAN and other LoRa protocols, making it easy to build large-scale IoT networks.
In addition to its low power consumption and long-range capabilities, the ESP32 LoRa with Display SX1276 has a variety of features that make it an ideal choice for IoT applications. It has a built-in accelerometer and gyroscope, which can be used for motion sensing and orientation detection. It also has a built-in GPS module, which can be used for location tracking and geofencing.
The module can be powered by a variety of sources, including batteries, solar panels, and external power sources. It also has a deep sleep mode that consumes only 10 µA of current, making it an ideal choice for battery-powered applications.
Conclusion
The SX1278 LoRa module and the ESP32 LoRa with Display modules are two popular choices for developers looking to build IoT applications that require long-range communication and low power consumption. The SX1278 module is a versatile solution that can be easily integrated into a variety of applications, while the ESP32 LoRa with Display modules provide additional features, such as processing power, connectivity, and display capabilities.
When selecting a LoRa module, developers should consider their specific requirements, such as range, power consumption, data rate, and frequency band. They should also consider the features and capabilities of the module, such as built-in sensors, connectivity options, and compatibility with different protocols and programming languages.
Overall, LoRa technology provides an attractive alternative to traditional wireless communication technologies, such as WiFi and Bluetooth, for IoT applications that require long-range communication and low power consumption. With the availability of versatile LoRa modules, such as the SX1278 LoRa module and the ESP32 LoRa with Display modules, developers have more options than ever before to build innovative IoT solutions.
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hackgit · 1 year
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[Media] ​​TTGO T-Beam ESP32 LoRa
​​TTGO T-Beam ESP32 LoRa The TTGO T-Beam is a long-range wireless capable board supporting LoRa, built around a dual-core ESP32 chip with 4MB of SPI flash onboard, providing both Wi-Fi and Bluetooth LE. The board's LoRa support comes in three different variants, operating at 433MHz, 868MHz, and 915MHz depending on region, with an included SMA antenna. Location tracking is provided by the onboard u-blox NEO-6M GPS module with ceramic antenna, and the board offers 26-pin headers with GPIO, ADC, VP/VN, DAC, touch, SPI, I2C, UART, 2דLoRa” pin, and power signals (5V/3.3V/GND). The board can be programmed using the Arduino development environment, and example code shows you how to both send and receive data via LoRa. The board also includes a battery holder for a 18650 Li-Ion cell. Repository: https://github.com/Xinyuan-LilyGO/LilyGo-LoRa-Series Buy online: 🛒 https://alii.pub/6mgzin 🛒 https://amzn.to/3Z2WUh4 #radio #lora #mesh #ESP32
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iotagger · 6 years
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Hardware solutions for Eclipse IOT Challenge: Exploring LoRa/LoRaWAN
The Eclipse IOT challenge lead me to research more in depth different technologies both from the hardware and the software aspect. As part of product development and delivery one has to come up with the solution for a problem. In this case the problem is parking in urban areas, or the lack of smarter parking solutions. Such implementation would not only allow end users to have a better parking experience while saving time in finding an adequate spots but also provides the city with valuable data to be used for city planning and city improvement projects.
Once the issue is identified, it was important to find a technical solution that would align with our needs. For city implementations, given the broad area that needs to be covered, we would need a type of communication that is long range and low cost, both in cost of sending data and power consumption. I first tackled the hardware needs once the design was evaluated. The prototype for a smart city solution needs to also be scalable while adding the least overhead in cost and infrastructure needed.
In this article I will go more in depth on the research done to identify one of the key components of the project. I will share a summary of my findings in hopes of helping others that are also exploring similar solutions.
Evaluating communication solutions:
I evaluated BLE, bluetooth, cellular, satellite, Wi-Fi, SigFox, Zigbee and Lora. Bluetooth and Wi-Fi, given its range limitation and cost were not considered for this prototype. Cellular communications have a higher cost as well, and at even steeper price comes satellite communication; both this options were also discarded. SigFox and LoRa/LoraWAN were the runner up candidates. I came across a comprehensive post on the comparison of SigFox and LoRa that is worth the read https://www.link-labs.com/blog/sigfox-vs-lora . The winner was LoRa.
Why Lora?
As explained by Libelium on http://www.libelium.com/development/waspmote/documentation/lora-vs-lorawan/ LoRa contains only the link layer protocol and is perfect to be used in P2P communications between nodes. LoRa modules are a little cheaper that the LoRaWAN ones.. LoRaWAN includes the network layer too so it is possible to send the information to any Base Station already connected to a Cloud platform. LoRaWAN modules may work in different frequencies by just connecting the right antenna to its socket..
LoRa which stands for long range wireless operates at a low bandwidth, meaning that its best application is for sending smaller pieces of data such as sensor data. LoRaWAN is known for its good penetration and long coverage which has been recorded to reach over 10 KM distance. LoRaWAN operates on unlicensed bands, so in most countries is legal to have you own LoRaWAN gateway cutting down the cost given that you will not have to pay a carrier or third party to supply you with the service.
Additionally a selling point for me personally was the wide accessibility to various developer platforms and hardware solutions such as DIY LoRa kits, libraries and Arduino compatible LoRa modules. The Things Network offers a strong platform with access to resources, documentation and a great community of IOT LoRa enthusiast.
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Gateway
Lets take a look at one of the hardware pieces now. “Gateways form the bridge between devices and The Things Network. Devices use low power networks like LoRaWAN to connect to the Gateway, while the Gateway uses high bandwidth networks like WiFi, Ethernet or Cellular to connect to The Things Network. Gateways are routers equipped with a LoRa concentrator, allowing them to receive LoRa packets”(see more at https://www.thethingsnetwork.org/docs/gateways/). Below is a list of some gateways that were evaluated for this project. I spent time looking at their platform flexibility, the documentation and support provided and what would be the most cost effective solution for a minimum viable product (MVP).
Lorixone
https://lorixone.io/
LORIX One is the first low cost gateway designed and assembled in Switzerland. Its technical specifications include Runx Linux Yocto 4.X SX1301 gateway chip SPI based 8 channels, 49 demodulators @ 868MHz
Lorixone counts with great documentation accessible at https://www.thethingsnetwork.org/labs/story/install-awesome-lorix-one-gateway
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Kerlink
Details at https://www.kerlink.com/iot-solutions-services/IoT%20LoRaWan%20Solutions/
Wirnet iBTS is a range of modular and upgradeable gateways designed for IoT public operators. It can be upgraded up to 64 LoRa™ channels to offer an answer to massive messages supporting. I was unable to identify the price point for this gateway.
The Things Gateway
Details at https://www.thethingsnetwork.org/docs/gateways/gateway/
Retails: € 300.00 € 280.00 (ex VAT)
Originally started as a Kikstarter campaign viewable at https://www.kickstarter.com/projects/419277966/the-things-network it provides 10 km / 6 miles radius of network coverage, it can server thousands of nodes and its an straight forward to set up. It counts with ample documentation and a strong community.
Technical specifications:
Fastest way to get started with LoRaWAN (Long Range WAN)
Set up your own LoRaWAN network in as little as 5 minutes
Connects easily to your WiFi or Ethernet connection
Wireless range of up to 10 km (6 miles)
Engage with a global community of IoT developers
Easy cloud integration with popular IoT platforms
Based on open source hardware and software standards
Devices can freely communicate over all gateways connected to The Things Network
XBEE slot for future connectivity protocols or homebrew add-ons.
Security through the https connection and embedded in the LoRaWAN protocol
Can serve thousands of nodes (depending on traffic)
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Laird — RG1xx
Details at: https://www.lairdtech.com/products/rg1xx-lora-gateway
Retail 400+ US dollars
This gateway counts with a dual-band Wi-Fi, BT v4.0 (BLE and Classic) and wired Ethernet; LoRa range up to 10 miles and pre-loaded LoRa Packet Forwarder software
Technical specifications:
Full Linux operating system — Kernel v4.x running on Atmel A5 Core @ 536 MHz
Multiple interfaces such as LoRaWAN, 802.11a/b/g/n, Bluetooth v4.0, and Ethernet
8-Channel LoRaWAN support with up to +27dBM max transmit power
Comprehensive Certifications for FCC / IC (RG191) and CE (RG186) (all pending)
Industrial temperature range (-30º to 70º C)
Advanced deployment tools including intuitive web-based configuration, integrated LoRa packet forwarder, and default settings for multiple LoRaWAN Network Server vendors
Enterprise-grade security built on Laird’s years of experience in wireless
Industry-leading support works directly with Laird engineers to help deploy your design
LoRa Network Server pre-sets — The Things Network, Loriot, Stream and Senet
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Multitech
Developer resource http://www.multitech.net/developer/products/multiconnect-conduit-platform/
Retail 675–685 US dollars
Breakdown: base gateway MTCDT-H5–210L-US-EU-GB https://www.digikey.com/product-detail/en/multi-tech-systems-inc/MTCDT-H5-210L-US-EU-GB/881-1236-ND/5246365() $490, antenna (https://www.digikey.com/product-detail/en/multi-tech-systems-inc/AN868-915A-10HRA/881-1242-ND/5246371) $13, LoRa module MTAC-LORA-915 (https://www.digikey.com/product-detail/en/multi-tech-systems-inc/MTAC-LORA-915/881-1239-ND/5246368) $180
The MultiConnect® Conduit™ is a configurable, scalable cellular communications gateway for industrial IoT applications. Conduit allows users to plug in two MultiConnect mCard™ accessory cards supporting wired or wireless interfaces. It counts with open source Linux development, wwo mcard slots, Lora 8 channel receiver, Spred spectrum frequency hopping that is ued to Up to 10 miles line of sight. MultiConnect has done a great job with its documentation and it counts with its own platform that can be used as well.
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Lorrier LR2
Details at: https://lorrier.com/#introducing-lr2
Developer resource: https://github.com/lorriercom
Retail €615.00 €755.00
Based on LoRaWAN™ protocol. This is a fully outdoor device intended to establish a wide coverage network by telecommunications operators and local network by individuals or IoT connectivity service providers. The whole solution, including both HW and SW parts, follows the Lorrier culture, and it is shared as an Open Source.
The gateway is based on iC880a LoRaWAN™ concentrator by IMST which uses Semtech SX1301 base band processor designed for use with LoRa® networks. BeagleBone Green with 1GHz (2000 MIPS) processor and fully operational on fast SPI bus was chosen as a powerful control unit.
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LoRa/LoRaWAN Gateway — 915MHz for Raspberry Pi 3
Details at https://www.seeedstudio.com/LoRa%2FLoRaWAN-Gateway-915MHz-for-Raspberry-Pi-3-p-2821.html
Retails 289.00 US dollars
If you want to build you own LoRa network, there are 3 things that you should prepare to get started: a Gateway, at least one Node and a local server where you can monitor all your devices. This kit provides a gateway & local server that allows you to collect and transfer data among all your LoRa nodes. By connecting the gateway with Seeeduino LoRaWAN and Grove modules, you can build your IOT prototype within minutes.
Regarding the gateway module RHF0M301, it is a 10 channel(8 x Multi-SF + 1 x Standard LoRa + 1 x FSK) LoRaWan gateway moduel with a 24pin DIP port on board, users can easily connect the RHF0M301 with PRI 2 bridge RHF4T002, adapter for Raspberry Pi 3 and RHF0M301.
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RisingHF gateway
Details at http://www.risinghf.com/product/rhf0m301/?lang=en
I have seen this solution mentioned and used across the LoRaWAN community. Its technical specs are RHF0M301 is a 10 channels (8 x Multi-SF + 1 x Standard LoRa + 1 x FSK) LoRa/LoRaWAN gateway or concentrator module. The module is integrated one 24 pins DIP hearder, with this header user could connect RHF0M301 with his own embedded platform to build a customized gateway easily.
LG01 LoRa OpenWrt IoT Gateway by Dragino Tech
Details at https://www.tindie.com/products/edwin/lg01-lora-openwrt-iot-gateway/?pt=ac_prod_search
Retails 56.00 US dollars
This gateway is a long distance wireless 433/868/915Mhz, OpenWrt, LoRa IoT Gateway
The LG01 is an open source single channel LoRa Gateway. It lets you bridge LoRa wireless network to an IP network via WiFi, Ethernet, 3G or 4G cellular.
DYI options:
There are various posts on DYI options based both from Raspberry Pi and Arduino boards. Below are a few:
Build your own gateway
https://www.thethingsnetwork.org/docs/gateways/start/build.html
Building a Raspberry Pi Powered LoRaWAN Gateway
https://www.rs-online.com/designspark/building-a-raspberry-pi-powered-lorawan-gateway
Hardware IMST iC880A LoRaWAN “concentrator” board and Raspberry Pi
The iC880A — LoRaWAN https://wireless-solutions.de/products/long-range-radio/ic880a iC880A is able to receive packets of different end devices send with different spreading factors on up to 8 channels in parallel. In combination with an embedded Linux board like Raspberry Pi, Beagle Bone, Banana Pi and the HAL software from https://github.com/Lora-net a complete LoRaWAN® gateway can be setup easily.
From zero to LoRaWAN in a weekend
https://github.com/ttn-zh/ic880a-gateway/wiki
Based iC880a concentrator board and a Raspberry Pi 2.
A DIY low-cost LoRa gateway
http://cpham.perso.univ-pau.fr/LORA/RPIgateway.html
The gateway is based on a Raspberry PI. RPI 1B+/2B/3B can be used. The LoRa modules comes from (a) Libelium LoRa radio module, (b) HopeRF RFM92W/HopeRF RFM95W (or RFM96W for 433MHz), © Modtronix inAir9/inAir9B (or inAir4 for 433MHz), (d) NiceRF LoRa1276. Libelium LoRa and RFM92W use the Semtech SX1272 chip while RFM95W, inAir9/9B and NiceRF LoRa1276 use the SX1276 which is actually more versatile.
Note: The LoRa module and the LoRaWAN module are not compatible because the protocols are different. The LoRa module implements a simple link protocol, created by Libelium. However, the LoRaWAN module runs the LoRaWAN protocol, a much richer and more advanced protocol, created by the LoRa Alliance.
Check out their Github page with detailed documentation https://github.com/CongducPham/LowCostLoRaGw
Conclusion on gateways:
The gateway is a key portion of this solution given that the sensors will need to send the information “somewhere” where it can either be analyzed on the edge or sent to the cloud. After considering price ranges on both the parts needed for a DIY solution or a full blown gateway I considered those solutions that would be cost effective and which I was most familiar with. The “LG01 LoRa OpenWrt IoT Gateway by Dragino Tech” seemed the best approach. The developer kit counts with an Arduino developer node and a Developer gateway. Note that this solution only counts with ONE channel, in comparison with other solutions that allow 8+ channels. This was a compromise that was evaluated and given that this will be a prototype the one channel option seemed sufficient.
In the following articles I will showcase both the remaining hardware parts and the software portion along with updates on how the project is coming along.
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decoderstech · 4 years
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Canada based I-SYST inc has designed a tiny nRF52840 module about the size of a fingernail. BLYST840 module fully leverages the capability of Nordic Semi’s wireless microcontroller with Bluetooth 5.2, Thread, and Zigbee connectivity, and exposes 46 I/Os. BLYST840 specifications: Wireless MCU – Nordic Semiconductor nRF52840 Arm Cortex-M4F microcontroller @ 64 MHz with 1 MB flash, 256 KB RAM Connectivity Bluetooth 5.2 up to 2 Mbps, -96 dBm sensitivity for long-range; Up to 111 dB link budget; Bluetooth Mesh IEEE 802.15.4 radio support for Thread & Zigbee NFC-A Built-in ceramic antenna Output power – Adjustable from +8 dBm to -20 dBm 46 I/O pins exposed via pads around the edges of the module including QSPI/SPI/2-wire/I2S/PDM/QDEC Programmable Peripheral Interface (PPI) SPI interface @ 32 MHz Quad SPI interface @ 32 MHz EasyDMA for all digital interfaces USB 2.0 (12 Mbits) 12-bit/200K SPS ADC Security Arm TrustZone Cryptocell 310 128-bit AES/ECB/CCM/AAR co-processor Misc – Built-in 32 MHz & 32.768 MHz crystal Supply Voltage – 1.7 V to 5.5 V via battery or USB power. Dimensions – 14 x 9 x 1.6mm Certifications – FCC, IC & CE The module is programmable with MicroPython, IOsonata open-source multi-architecture multi-platform library for IoT project, as well as Nordic SDKs. You’ll find some documentation and firmware file on SourceForge. - - Source- CNX software - - ➖➖➖➖➖➖➖➖➖➖➖➖ Follow Us On: @decoders8421 Tag Your Friends 👼. Ask any query or doubt in comments. ➖➖➖➖➖➖➖➖➖➖➖➖ - #fpga #atmega #arm #nxp #embedded #iot #developmentboard #rpi #raspberrypi #arduino #arduinouno #raspberrypi3 #tinkercad #tinker #stm32 #esp32 #lorawan #lora #ai #ml #beagleboneai #raspberrypi4 #sbc #cortex #singleboard #singleboardcomputer #iot #zigbee #opencv #raspberrypicamera https://www.instagram.com/p/CBLtnTpHm-Q/?igshid=yket98i0uska
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120stillwell · 4 years
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For just $22.00 Description:The 868/915MHz antenna needs to be in connection with the IPEX interface (if the antenna is not connected, it may damage the LoRa chip)Lithium battery charge and discharge circuit, when the battery is full, the blue LED will stop working. When using, pay attention to the positive and negative of the battery, otherwise it will be damaged!With IO port touch screen touch signal input, you need to add the 100nF pull-down capacitor to this pin!Example:This product is a SX1276 chip based on ESP32 WIFI increased OLED, namely LoRa remote modem, 868-915MHz Free World Shipping !quency, high sensitivity is over-148dBm, + 20dBm output power, high reliability, long transmission distance.the onboard 32MB Flash wi-fi antenna, 0.96 inch blue oled display, lithium battery charging circuit, CP2102 interface and USB serial chip, the perfect support for Arduino development environment, can be used for program checking and product development is very easy and fast.Operating voltage: 3.3V to 7VOperating temperature range: -40 ° C to + 90 ° CSupport for Sniffer software protocol analysis, Station, SoftAP, and Wi-Fi Direct modesData rates: 150 Mbps @ 11n HT40., 72 Mbps @ 11n HT20, 54 Mbps @ 11g, 11 Mbps @ 11btransmit power: 19.5 dBm @ 11b, 16.5 dBm @ 11g, 15.5 dBm @ 11nreceiver sensitivity up to -98 dBmUDP sustained throughput of 135 Mbps Pin diagram:Test details:Use legend: For example One(1) 868mhz / 915MhzOLED LoRaSender#include #include #include #include SSD1306.h#include images.h#define SCK 5 // GPIO5 - SX1278's SCK#define MISO 19 // GPIO19 - SX1278's MISO#define MOSI 27 // GPIO27 - SX1278's MOSI#define SS 18 // GPIO18 - SX1278's CS#define RST 14 // GPIO14 - SX1278's RESET#define DI0 26 // GPIO26 - SX1278's IRQ (interrupt request)#define BAND 868E6 // 915E6unsigned int counter = 0;SSD1306 display (0x3c, 4, 15);String rssi = RSSI -;String packSize = -;String packet;void setup () {  pinMode (16, OUTPUT);  pinMode (2, OUTPUT);    digitalWrite (16, LOW...
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planetarduino · 6 years
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Arduino PRO Gateway for LoRa now available for pre-order
We are very happy to announce the Arduino PRO Gateway for LoRa!
Combined with Arduino MKR WAN 1300 IoT nodes, it makes an ideal solution for a wide range of applications, like smart agriculture, smart cities and building automation – and many other remote monitoring use cases requiring long range, low power wireless connectivity.
The gateway can be used globally and enables multiple channel management. By supporting advanced features like Listen Before Talk (LBT), it allows users to transmit at higher power on the first free channel, achieving longer ranges than conventional gateways for LoRa. 
Arduino continues its mission of making complex technology easy enough for anyone to use. Customers of the Arduino PRO Gateway will be given exclusive beta access to the Arduino IoT Cloud, which makes installation, provisioning and remote management of the gateway incredibly simple through the popular Arduino Create cloud platform.
The gateway features the advanced Embit EMB-LR1301-mPCIe module, hosted by a Raspberry Pi 3 B+ SBC, in a rugged aluminum enclosure. The gateway comes pre-installed with an optimized packet forwarder and a carrier grade Network server for LoRa WAN that is running on the Arduino Cloud provided by A2A Smart City (part of the A2A Group).
Technical Specifications
Chipset: Semtech SX1301
Modulation: LoRa Spread Spectrum, FSK, GFSK 868MHz (EU) / 915MHz (US)
Number of Channels: 8 LoRa Channels
Operating Frequency: 868MHz (EU) / 915MHz (US)
Frequency Range: 860MHz to 1020MHz
Operating Temperature: -40°C to +85°C
RF Output Power: Up to +27dBm
Sensitivity: Up to -137dBm
Interfaces for the LoRa Module:  mPCIe (SPI / I2C / UART / GPIOs) :
Dimensions: 71x40x1mm
Operating Voltage: +5V
Additional Features:
Listen Before Talk (LBT) Capability (for improved transmission power management),
On-board uFL antenna connector
FPGA support for LoRa Spectral Scan
  The Arduino Pro Gateway for LoRa (868 MHz , EU version) can be pre-ordered from the Arduino Store.
Arduino PRO Gateway for LoRa now available for pre-order was originally published on PlanetArduino
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sienna-notes-blog · 6 years
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1pcs ESP-32S ESP-32 Development Board WiFi Wireless Bluetooth Antenna Module For Arduino 2.4GHz Dual Core ESP32S ESP32
1pcs ESP-32S ESP-32 Development Board WiFi Wireless Bluetooth Antenna Module For Arduino 2.4GHz Dual Core ESP32S ESP32
1pcs ESP-32S ESP-32 Development Board WiFi Wireless Bluetooth Antenna Module For Arduino 2.4GHz Dual Core ESP32S ESP32
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their explanation
his response http://gerfidawma1987.blogspot.com/2018/08/323.html
Aug 26th, 2018
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Here are the capabilities so far of our Inhouse design of the Rocket Flight Computer. This flight computer is designed for rockets 38mm in diameter or greater and will fit inside a 38mm tube coupler. Dimensions are 4.0in x 1.25in x 0.5in, not including the antenna more or less Flight-ready for supersonic flights to over 24K feet and Mach 2.0.  For large or high-power projects, a commercially available backup computer is strongly recommended.  --------FEATURES---------- Full-featured dual deploy/multi-stage/air start rocket flight computer capable of 100,000ft or more Tilt-sensing lockout for ignition of second stages and/or air starts Live telemetry over fil NRF24L01+PA+LNA compatibles with Arduino – 2 Mbit/s – 1100 metres And Bluetooth BLE 6 high-current pyro outputs with continuity checks Advanced MEMS sensor package: GNSS, accelerometers, gyroscope, magnetometer, barometer, and LoRa radio High Data-Capture rate: approximately 50,000 samples per second recorded to SD card --1000Hz 3-axis digital 24G and 100G accelerometer data logging --1000Hz 3-axis digital 2000dps gyroscope data logging --1000Hz of flight events & continuity data logging --1000Hz of sensor-fuzed speed & altitude --100Hz of pitch, yaw, roll rotation --40Hz of of magnetic data logging and magnetic roll --30Hz-100Hz of digital barometric data logging (Altitude, pressure, temperature) --30Hz of main battery voltage (1400Hz during pyro events) --5Hz-25Hz of GNSS data logging (chip-dependent data rates & constellations) --Separate data file for each flight up to 100 flights Simple, easy-to-use configuration interface through the SD card --User Selectable Flight Mode: Single-Stage, Two-Stage, Air start, or Booster --Configurable Apogee delay --Optional Audible Battery Voltage report at startup --Optional Magnetic Switch Startup & Shut-down --Pre-flight audible reporting options: Perfect flight or Marsa --User selectable telemetry frequency & power settings --8 configurable servo outputs (8 powered) +4 Multy prepose --User-selectable inflight brownout recovery Mach immune, sensor-fusion-based apogee event Barometric-based main deploy event Audible pre-flight continuity report Audible Post-flight max altitude & speed report Mount in any orientation, automatic orientation detection with built-in self-calibration mode Bench-test mode activated w/ tactile button, user configurable status messages over USB Serial A report in SI or Metric units Compatible with Teensy 4.1 --Connect any sensor to any available I2C or SPI bus --Create your own custom setup with configurable pins for continuity, firing, and servos --Connect UBLOX GPS unit to any available HW Serial port
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engineercity · 7 years
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Новости сайта #ENGINEERING - 工程
New Post has been published on http://engineer.city/boards-provide-wireless-support/
Boards provide wireless support
RS Components (RS) is extending its portfolio of high-quality development boards with the introduction of two new SmartEverything solutions from Arrow.
The SmartEverything LION IoT development system-on-module (SoM) board and the SmartEverything ARIS IoT board both offer support for Internet of Things (IoT) application development.
The SmartEverything LION SoM board is based on an Arduino form-factor board that features a Microchip LoRa module, which enables low-data-rate communications to be made over long distances.
LoRa enables data from devices such as on-board sensors and actuators to be connected to the cloud to update data and control information for M2M and IoT applications.
Features of the board include: the low-power Microchip ARM Cortex-M0+ powered CPU along with Microchip Crypto-Authentication; a 868MHz antenna; a Telit GPS module with embedded antenna; and MEMS accelerometer and gyroscope sensors which provide extra functionality for tracking and monitoring performance.
The SmartEverything ARIS IoT board is a complete hardware/software platform built around the high-performance Renesas Synergy S7 Series microcontroller, which features an ARM Cortex-M4 processor running at 240MHz with 4MB of code flash and 640kB SRAM memory.
The ARIS board is an all-purpose tool with an Arduino R3 compatible footprint and connections, as well as Arduino extension shields that can be used for implementing extra functionality hardware features.
The ARIS board communicates with other devices and the cloud via Ethernet 10/100 or USB, and offers wirelessly connectivity via Wi-Fi, Bluetooth Smart (BLE), and NFC protocols.
Sensing capability includes temperature and humidity devices, and motion detection is provided by an accelerometer and two-axis gyroscope connected via the SPI bus.
Other on-board devices include 512MB of serial flash and 32MB of SDRAM memory, as well as an energy harvesting NFC Forum Type 2 Tag with field detection pin and I²C interface, and a multi-touch 4/5-wire resistive touchscreen controller with proximity sensing. The board also provides interaction and access via the GPIO pins, LEDs and pushbuttons.
Development process functions for the boards include the on-board J-Link debugger, support for crypto-bootloaders, and Over-the-Air (OTA) firmware updates.
Engineers are able to focus on application development using the various helpful features available on the ARIS platform, including the Renesas Eclipse Embedded Studio (e² Studio), which is the implemented Integrated Development Environment (IDE).
The Arrow SmartEverything LION SoM and Arrow SmartEverything ARIS IoT board are available now from RS in the EMEA and Asia Pacific regions.
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[11] Communications
Source: engineerlive.com
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planetarduino · 7 years
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ISM Communications for Arduino
If you want to wirelessly communicate between devices, WiFi and Bluetooth are obvious choices. But there’s also the ISM (industrial, scientific, and medical) band that you use. There are inexpensive modules like the SX1278 that can handle this for you using LoRa modulation, but they haven’t been handy to use with an Arduino. [Jan] noticed the same thing and set out to build a shield that allowed an Arduino to communicate using LoRa. You can find the design data on GitHub. [Jan] calls it the LoRenz shield.
According to [Jan], the boards cost about $20 to $30 each to make, and most of that cost was in having PC boards shipped. LoRa lets you trade data rate for bandwidth, but typical data rates are fairly modest. As for range, that depends on a lot of factors, too, but we’ve seen ranges quoted in terms of miles.
Depending on where you live, there may be legal restrictions on how you use a radio like the SX1278. You should understand your local laws before you buy into using the ISM bands. We aren’t sure it would be wise, but the board can coexist with three other similar shields. So you could get 4 radios going on one Arduino if you had too and could manage the power, RF, and other issues involved. The breakout board the module uses has an antenna connector, so depending on your local laws, you could get a good bit of range out of one of these.
[Jan] promises a post on the library that makes it all work shortly, but you can find the code on GitHub now. If you look at the code in the examples directory, it seems pretty easy. You’d have to sling some software, but the SX1278 can support other modes in addition to LoRA including FSK and other data modulation techniques.
We’ve seen other LoRa shields, but not many. If you are interested in other wireless technologies, we’ve talked about them quite a bit. If you want a basic introduction to LoRa, [Andreas Spiess’] video below is a good place to start.
Filed under: Arduino Hacks, wireless hacks
ISM Communications for Arduino was originally published on PlanetArduino
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planetarduino · 7 years
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CES17: Arduino Unveils LoRa Modules For The Internet Of Things
WiFi and Bluetooth were never meant to be the radios used by a billion Internet of Things hats, umbrellas, irrigation systems, or any other device that makes a worldwide network of things interesting. The best radio for IoT is something lightweight which operates in the sub-Gigahertz range, doesn’t need a lot of bandwidth, and doesn’t suck down the power like WiFi. For the last few years, a new low-power wireless communication standard has been coming on the scene, and now this protocol — LoRa — will soon be available in an Arduino form factor.
The Primo, and NRF
It’s not LoRa, but the Arduino Primo line is based on the ESP8266 WiFi chip and a Nordic nRF52832 for Bluetooth. The Primo comes in the ever-familiar Arduino form factor, but it isn’t meant to be an ‘Internet of Things’ device. Instead, it’s a microcontroller for devices that need to be on the Internet.
Also on display at CES this year is the Primo Core which we first saw at BAMF back in May. It’s a board barely larger than a US quarter that has a few tricks up its sleeve. The Primo Core is built around the nRF52832, and adds humidity, temperature, 3-axis magnetometer and a 3-axis accelerometer to a square inch of fiberglass.
The Primo Core has a few mechanical tricks up its sleeve. Those castellated pins around the circumference can be soldered to the Alice Pad, a breakout board that adds a USB port and LiPo battery charger.
LoRa
Also on deck at the Arduino suite were two LoRa shields. In collobration with Semtech, Arduino will be releasing the pair of LoRa shields later this year. The first, the Node Shield, is about as simple as it can get — it’s simply a shield with a LoRa radio and a few connectors. The second, the Gateway Shield, does what it says on the tin: it’s designed to be a gateway from other Arduino devices (Ethernet or WiFi, for example) to a Node shield. The boards weren’t completely populated, but from what I could see, the Gateway shield is significantly more capable with support for a GPS chipset and antenna.
A partnership with Cayenne and MyDevices
Of course, the Internet of Things is worthless if you can’t manage it easily. Arduino has struck up a partnership with MyDevices to turn a bunch of low-bandwidth radio and serial connections into something easy to use. Already, we’ve seen a few builds and projects using MyDevices, but the demos I was shown were extremely easy to understand, even if there were far too many devices in the room.
All of this is great news if you’re working on the next great Internet of Things thing. The Primo Core is one of the smallest wireless microcontroller devices I’ve seen, and the addition of LoRa Arduino shields means we may actually see useful low-bandwidth networks in the very near future.
Filed under: Arduino Hacks, news
CES17: Arduino Unveils LoRa Modules For The Internet Of Things was originally published on PlanetArduino
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