- ESP32CAM * 1
- Battery 3.7v to 5v * 1
- L9110s * 1
- plarail * 1
- Battery 5v -> ESP32CAM 5V
- Battery GND -> ESP32CAM GND
- ESP32CAM 3.3v -> L9110s VCC
- ESP32CAM GND -> L9110s GND
- ESP32CAM GPIO 12 -> L9110s A-1A
- ESP32CAM GPIO 13 -> L9110s A-1B
- L9110s A-A -> plarail +
- L9110s A-B -> plarail -
- The 3.7v battery needs to be boosted to 5v to ensure the stability of the ESP32CAM.
- When the 3.3v output is connected to the L9110s and the
digitalWrite()
is switched, there may be noise, so connecting VCC to the battery is more stable.
Youtube link
https://youtube.com/shorts/aUUs-A2DXvQ?feature=share