The introduction for the functions of Four-axis remote control

1.NRF24L01 wireless communication four-axis remote control, OLED four-axis gesture return display, voltage return display, one-button unlock function, etc. 

 2. Onboard ESP8266-12s module, the serial port is connected to STM32 master control, and the WIFI four-axis remote control and WIFI smart car remote control can be developed and made for the second time

Accessories and other matters

1. The power supply is a 3.7v 1S lithium battery, and it can be powered by USB

2. The PCB layout design is by Electronic amateurs which cannot guarantee the standardization, and the design needs to be improved, if you have better suggestions, please leave your comment here.

Schematic

Based on ESP8266, you can reprogram it when it needed.