The Serial Radio Telemetry Kit is a small, lightweight, and inexpensive open source radio platform that can allow for ranges of better than 300m out of the box. The radio uses the very popular Si1000 chipset along with the open source SiK firmware. This firmware allows for a simple serial cable replacement to transmit any serial data including telemetry, RTK correction data (RTCM), or simple Serial.print() statements without any configuration required.

This telemetry kit includes two radio modules, a microB USB cable, microB OTG cable, two JST-GH cables, two right-angled RP-SMA connectors, and two 915MHz antennas. Each radio module in the kit features a transmit power of 500mW, a RX sensitivity of -117dB, a full duplex transparent serial link of 57600baud and are equipped with a microB USB and UART port for easy connectivity.

Both radios have a microB connector and use the FT23x USB to serial IC making it immensely easy to pass serial data from a remote radio to a base computer or cell phone. Radios are configured using simple AT commands. The provided JST-GH cables make connecting to the TX/RX pins of the radio a literal snap.

In order to use the Serial Telemetry Radio Kit, you’ll need to cut the one of the provided JST-GH cables in half and tin the ends (for insertion into Arduino headers) or solder the connections to your remote unit (rover, weather station, Arduino, etc). Plug the other module into the USB port on your base station, computer, or cell phone.

Features:

500 mW maximum output power (adjustable) -117 dBm receive sensitivity

Open-source SIK firmware

RP-SMA connector

2-way full-duplex communication through adaptive TDM UART interface

Transparent serial link

MAVLink protocol framing

FT230X is a USB to BASIC UART IC

Interchangeable air and ground modules 915 or 433MHz

Micro-USB port

4-position JST-GH connector

Supply voltage: 5V DC (from USB or JST-GH)

Transmit current: 100mA at 20dBm

Receive current: 25mA

Serial interface: 3.3V UART