1. You don't have decoupling capacitor. 2. You need a logic level shifter for these kind of modules
1. You don't have decoupling capacitor.
2. You need a logic level shifter for these kind of modules to make it work with your Arduino UNO, as the module runs on 3.3V logic and your Arduino on 5V logic.
3. Better use a separate power supply for your module as your Arduino cannot meet the current requirements of the module properly sometimes.
0 Replies