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Bluetooth Audio Receiver 3.0 Module. ... Circuit Diagram of PAM8403 Module. The PAM8403 is an audio amplifier module that can amplify sound signals to drive speakers. It is a 2-channel amplifier, ...
The buck converter module reduces the 12V coming from the battery and converts it to +5V so that we can power the Neo Pixel LEDs, Bluetooth Audio Receiver Module, and the ESP12E module. Next on the ...