SKU: DRFC-2201
📋 GST Invoice Available

3DR Single TTL MINI Radio Telemetry 433MHz 500mW Kit for Pixhawk and APM FC

₹7,289.00 (Inclusive of all taxes)
Out of Stock

The 3DR Single TTL MINI Radio Telemetry Kit provides a robust 433MHz, 500mW full-duplex MAVLink telemetry link for Pixhawk and APM flight controllers, enabling real-time data monitoring and ground station control for UAVs.

Features

  • 433MHz frequency band with 500mW adjustable output power for extended range.
  • Full-duplex communication using HopeRF HM-TRP modules with custom open-source firmware.
  • Supports MAVLink protocol for integration with Mission Planner and APM Planner ground control software.
  • Includes both base station (USB) and airborne transceiver with cables for APM and Pixhawk.
  • Features configurable duty cycle, error correction, and adaptive time-division multiplexing.

Out of stock

Description

This telemetry system establishes a critical wireless serial link between an airborne autopilot and a ground control station. Utilizing the 433MHz ISM band and HopeRF’s HM-TRP radio modules driven by a SiLabs Si1000 microcontroller, it provides a reliable, configurable data pipeline for MAVLink-based telemetry, including live GPS, battery voltage, attitude, and waypoint data.

The kit is engineered for integration with legacy APM and Pixhawk flight controllers, featuring a UART interface, transparent serial link, and support for AT/RT commands for remote configuration. Its adaptive flow control and error-correcting code ensure stable communication links essential for mission monitoring and in-flight parameter adjustment.

Key Features

  • High-power 500mW RF output (adjustable) for operational ranges up to several kilometers.
  • Based on the HopeRF HM-TRP module with Si4432 transceiver and Si1000 8051-core microcontroller.
  • Full-duplex, adaptive TDM (Time Division Multiplexing) communication with configurable duty cycle.
  • Supports Listen-Before-Talk (LBT) and Adaptive Frequency Agility (AFA) for reduced interference.
  • Integrated error-correcting code capable of handling up to 25% data bit error rate.
  • Micro-USB port on base station and 6-pin Molex connector for easy integration.
  • Fully configurable via standard AT commands or remote RT commands through ground station software.

Applications

  • Providing long-range telemetry for APM 2.x or Pixhawk-based autonomous multirotor and fixed-wing UAVs.
  • Enabling real-time mission monitoring and in-flight parameter tuning via Mission Planner or APM Planner software.
  • Serving as a wireless serial bridge for DIY robotics or data logging projects requiring robust RF communication.
  • Integration into survey, mapping, or agricultural drones requiring reliable telemetry data links.

Technical Specifications

Frequency433 MHz
Output Power500 mW (adjustable)
RangeUp to 2500 m
Receive Sensitivity-124 dBm
Operating Voltage3 - 6 VDC
Max Operating Current500 mA
Operating Temperature-24°C to +84°C
InterfaceUART, Micro-USB
ProtocolMAVLink
Dimensions (Module)54 x 26 x 12 mm
Weight33 g

Frequently Asked Questions

What flight controllers is this 3DR telemetry kit compatible with?

This kit is designed for direct integration with Pixhawk flight controllers using the included 6-pin cable and with APM (ArduPilot Mega) boards using the 5-pin cable. It communicates via the standard MAVLink protocol, making it compatible with any autopilot that supports MAVLink over a serial UART interface.

What is the maximum range I can expect with this system?

The system uses 433MHz at up to 500mW output power. With the included omni-directional antennas, a clear line-of-sight range of several kilometers (up to approximately 2.5 km) is achievable. Range can be extended further with the use of higher-gain antennas or bidirectional amplifiers.

How do I configure the radio settings and power output?

The radio modules are fully configurable using AT commands sent via a serial terminal or through the remote RT command feature. You can also configure key parameters like power output and duty cycle directly within ground control software such as Mission Planner or APM Planner under the telemetry settings.

Is it critical to attach the antenna before powering the unit?

Yes, it is essential to always connect an antenna before supplying power to either the ground station or airborne module. Transmitting without a properly connected antenna can damage the RF power amplifier stage of the radio module due to reflected power.

Package Includes

  • 1 x Radio Telemetry Base Station (USB Connection)
  • 1 x Telemetry Transceiver (Pin Header)
  • 2 x 2.5dBi Antenna
  • 1 x 5-pin Lead Cable for APM FC
  • 1 x 6-pin Lead Cable for Pixhawk FC

Additional Information

Weight 0.037 kg
Dimensions 10 × 6 × 5 cm