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Aug 16, 2023SOCORAD32 ESP32 walkie
Jun 27, 2023SOCORAD32, aka ESP32 Software Controlled Radio, is a hackable, open-source hardware ESP32-based amateur radio board for walkie-talkie and data communication applications.
The board comes with an ESP32 module with WiFi 4 and Bluetooth connectivity, an RDA Microelectronics RDA1846 RF IC used in many commercial walkie-talkies and offering a range up of to 5 km, a small display, a speaker, and a 18650 battery holder.
SOCORAD32 specifications:
The SOCORAD32 can be controlled through AT commands to configure the audio volume, tone squelching, CTCSS, CDSS codes, and more. Here are some examples:
To turn on voice-operated exchange (VOX) where X is the sensitivity level (1-8).
To control speaker volume where X is the loudness level (1-8).
To change communication parameters where RFV = receive frequency, TFV = transmit frequency, RXCT = CTCSS/CDCSS coding, TXCT = CTCSS/CDCSS transmit coding, Flag = busy locking/band setting (narrow or wide), and Flag1 = transmit power settings high (2 W) or low (0.5 W). Example:
You’ll find the AT command set and some basic code (Arduino sketch to set the ESP32 as a Bluetooth serial device) on GitHub. Besides walkie-talkie applications, the SOCORAD32 board could be used as an Intercom, a Pager, a voice-activated audio monitor, and for long-range IoT applications, as well as amateur radio experimentation.
Made by Mord Technologies in Nigeria, the SOCORAD32 board has just launched on Crowd Supply with a $5,600 funding goal that’s almost reached. There’s a single reward with the SOCORAD32 controller offered with a speaker and an antenna with a pledge of $80 plus $8 for shipping to the US and $18 to the rest of the world. You’d just need a 18650 battery to get started, and you’ll probably want to get two boards although the SOCORAD32 can be programmed to be compatible with commercial walkie-talkies.
Jean-Luc started CNX Software in 2010 as a part-time endeavor, before quitting his job as a software engineering manager, and starting to write daily news, and reviews full time later in 2011.
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