AM2302 Overview
① VDD Power (3.3V-5.5V) ② SDA Serial data, bidirectional port ③ NC Empty ④ GND Ground PIC1： AM2302 Pin Assignment 4.2 Power supply pins（VDD GND） AM2302 supply voltage range 3.3V - 5.5V, remended supply voltage is 5V. 4.3 Serial data（SDA） SDA pin is tri structure for reading, writing sensor data. Specific munication timing, see the detailed description of the munication protocol.
AM2302 Key Features
- 5.5V, remended supply voltage is 5V
