$2 for 5PCBs: https://jlcpcb.com Arduino code, circuit, parts list and more details ► https://howtomechatronics.com/projects/diy-arduino-rc-receiver/ …
Here’s part two of my full review of the Spedix S250Q Race Drone http://www.banggood.com/Spedix-ARF-S250Q-Carbon-Fiber-CC3D-Motor-ESC-Propellers-DSM2-PDB-Combo-p-977495.html?utm_campaign=US&utm_content=huyue …