Awesome

Handset

Custom DIY dual band (900/2400MHz) transmitter based on ExpressLRS.

REV-A

User interface

Handset does not have a dedicated screen to show the value.

It is using ESP8266/8285 as a webserver and it is used to display overview and adjust setting. It is also used to provide easy firmware OTA update (STM32 and ESP).

Latency

This is optimized for speed and latency.

LATENCY

Filtering

Filtering amount is minimized to avoid extra latency. Handset is using just oversampling of 4 and measurements proven that no extra filtering is needed.

FILTER

Firmware

This is using modified and optimized great ExpressLRS firmware.

Current development/experimental version can be found from here

NOTE: current firmware version is NOT compatible with original ExpressLRS firmware!