Crazyradio 2.0 - long range open USB radio dongle based on nRF52840

The Crazyradio 2.0 is not only for usage together with the Crazyflie family of devices, since it’s an open project with open firmware and a Python API, it’s a great building block for systems that require more predictable latency compared to WiFi and doesn’t have the same requirements for bandwidth. The hardware comes with a bootloader that enables firmware upgrades via USB without any additional hardware needed. 

The Crazyradio 2.0 is compatible with the Crazyflie eco system.

Features:

• Radio power amplifier giving 20dBm output power
• Open source firmware
• Firmware upgrade via USB
• Low latency

Electrical specifications:

• Cortex-M4F processor at 64MHz with 1MB of flash and 256Kb of RAM
• 2.4GHz ISM band radio
• USB device peripheral
• 100 radio channels
• 1 Mbps, 2Mbps and long range (125kbps and 500kbps mode) Bluetooth low energy modes
• 3 I/Os
• GND
• 3.15V out
• 5V in
• Standard USB-A connector
• Programming connector

Radio specifications:

• 20dBm output power (100mW)
• Low Noise Amplifier (LNA)
• RP-SMA connector

Mechanical specifications:

• Weight: 7g
• Size (WxHxD): 63x18x8mm (including connectors)