Power-supply Considerations
Voltage
Most modules require their VIN pin to be between 3.3V and 5.0V
They shouldn’t have more than 5.2V as it can cause damage to your module.
The E32-443T37S module is a special case as it requires between 4.5V and 15V.
Extra Passive Components
Low power modules
You should preferably put a small decoupling capacitor as close to the VIN and GND pins as possible.
Some people on mischianti.org have apparently emailed Ebyte and were recommended the following:
A capacitor between 100nF/0.1µF and 1000nF/1µF.
High power modules
The E32-443T37S module requires a more complex setup as shown below:
