Typical Application diagram
Diagram 1 MCU(3.3V) & Module cooperative processing mode

Diagram 2 MCU(5V) & Module cooperative processing mode

Design specification
- Module power supply consumption: 3.3V,the maximum constant current295mA. Proposed supply current≥400mA.
- Power filter capacitor C1 & C2 should be distributed as close to the 3.3V pin as possible.C1 & C2≥10uF.