Stereo 2.1W Class D Audio Amplifier - TPA2012 POL_Male-Female Wires with Pre-Crimped Terminals The Arduino's power jack must

The Arduino's power jack must remain disconnected at all times if power is supplied to the AVIN pin through the shield

which often block Wi-Fi transmission

Short-circuit protection for xD+ and xD- lines

Standard DFRobot 3 Pin out

there are 2

Stereo 2.1W Class D Audio Amplifier - TPA2012 POL_Male-Female Wires with Pre-Crimped Terminals The Arduino's power jack mustThis incredibly small stereo amplifier is surprisingly powerful able to deliver 2 x 2. 1W channels into 4 ohm impedance speakers (@ 10% THD). Inside the miniature chip is a class D controller, able to run from 2. 7V 5. 5VDC. Since the amp is a class D, it's incredibly efficient (89% efficient when driving an 8 speaker at 1. 5 Watt) making it perfect for portable and battery powered projects. It has built in thermal and over current protection but we