Band decoder for an Icom IC-705 radio using Bluetooth Low Energy (BLE) and BT Classic Serial Port Profile for CI-V control and USB Host for a wider range of CI-V radios. Also a related 3-Band transverter box to add 222, 902/3 and 1296 bands to the 705 in a highly integrated manner.

The Icom IC-905 only has a single PTT (SEND) output. Band information must be extracted from USB or LAN. This is a Band Decoder and PTT Breakout for the 905's 6 bands, 144 to 10GHz. Uses an ESP32-S3 in USB host mode, talks to the radio with CI-V Serial protocol.

Example ESPHome yaml configuration and tutorial for M5StampS3 / M5Stamp ESP32S3 module