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3DR Radio Telemetry Kit - 433 Mhz


The 3DR Radio telemetry system is designed as an open source Xbee replacement radio set, offering a lower price, longer range (approx one mile) and superior performance to Xbee radios. It’s available in 915Mhz and 433Mhz; and in the following configurations:  serial board (for the air) and USB (for the ground)., Documentation and Manuals:, 3DR Radio Configurator,

The system provides a full-duplex link  using HopeRF's HM-TRP modules running custom, open source firmware.  Interface to the module is via standard 5V-tolerant TTL serial / FTDI USB serial.

The SiK firmware includes a bootloader that permits radio firmware upgrades over the serial interface, and radio firmware with configurable parameters. Firmware upgrades and configuration are fully supported in the APM Mission Planner. Configuration is also possible through the 3DR Radio configurator and AT commands

Hardware features and specifications

Very small size

Light weight (under 4 grams without antenna)

Available in 900MHz or 433MHz variants

Receiver sensitivity to -121 dBm

Transmit power up to 20dBm (100mW)

Transparent serial link

Air data rates up to 250kbps

Range of approx 1 mile

MAVLink protocol framing and status reporting

Frequency hopping spread spectrum (FHSS)

Adaptive time division multiplexing (TDM)

Support for LBT and AFA

Configurable duty cycle

Built in error correcting code (can correct up to 25% data bit errors)

Demonstrated range of several kilometers with a small omni antenna

Can be used with a bi-directional amplifier for even more range

Open source firmware

AT commands for radio configuration

RT commands for remote radio configuration

Adaptive flow control when used with APM

Based on the HopeRF HM-TRP radio module, featuring an SiLabs Si1000 RF microcontroller.

DOCUMENTATION, SET UP AND COUNTRY COMPATIBILITY

Air module eagle files

USB module eagle files


Check price and availability


Found 10 years, 10 months ago



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