I’m feeling more and more confident with my R9M ( https://www.banggood.com/FrSky-R9M-900MHz-Long-Range-Transmitter-Module-With-R9-MM-416CH-Telemetry-Receiver-for-RC-Drone-p-1354233.html?p=LM11044296190201604E ). My quad …
$2 for 5PCBs: https://jlcpcb.com Arduino code, circuit, parts list and more details ► https://howtomechatronics.com/projects/diy-arduino-rc-receiver/ …