This new V2 Telemetry radio set allows you to link to a flight controller such as Pixhawk, ArduPilot Mega, APM2.5, APM2.6, etc. or Multiwii AIO to a USB or Uart equipped device such as a computer, laptop, tablet, or smartphone supporting a USB connection (or USB OTG). The new V2 radios, no longer have a separate Air/Ground module, as both transceivers can use Uart or USB connections and supports both modes. The Radio set not only lets you see live data, such as live GPS position overlaid on a map, system voltage, heading, waypoint navigation even artificial horizon and so much more. Using open source MAVlink based ground station software, you can even fly your aircraft with a joystick via your computer and update settings live! Or just use it for your DIY projects that needs a wireless Serial interface. This kit offers a great low price, longer range and superior performance. The system utilizes the 433Mhz band and provides a full-duplex link using HopeRF's HM-TRP modules running custom, open source, firmware.  Easy to flash with the latest firmware using Mission Planner!

Features:
• Interchangeable air and ground modules (they are identical to each other)
• Micro-USB port (for connecting to PC or tablet)
• 6-position DF13 connector (for connecting to flight controller)
• 100mW maximum output power (adjustable)
• -117dBm receive sensitivity
• Based on HopeRF’s HM-TRP module
• SMA connectors
• 2-way full-duplex communication through adaptive TDM
• UART interface
• Transparent serial link
• MAVLink protocol framing
• Frequency Hopping Spread Spectrum (FHSS)
• Configurable duty cycle
• Error correction corrects up to 25% of bit errors
• Open-source SIK firmware
• Configurable through *Mission Planner and *APM Planner

Specs:
Supply voltage: 3.7-6 VDC (from USB or DF13 connector)
Transmit current: 100 mA at 20 dBm (100mW)
Receive current: 25 mA
Serial interface: 3.3 V UART
Size: 25.5x 53x11 mm (without antenna)
Weight: 11.5g (without antenna)

Included:
Two radio modules with antennas 433Mhz
Micro-USB cable
Android OTG adapter cable
6-wire Pixhawk connector cable
6-to-5-position APM and PX4 connector cable

Frequency regulations vary by country, so consult your local airspace authority to find out which frequency is legal in your area. 

*Note: The reference to APM refers to the ArduPilot project, a family of open source autopilots based on the Arduino open source computing platform, developed by 3DR and the open source community. It consists of a choice of ArduPilot Mega (APM) electronics and a range of free software versions for different vehicles and is governed by an open source creative commons license.