I understand the circuit diagram for the buttons, but i would rather connect the IR receiver and not attach any buttons to the speaker.
But how must the IR receiver be attached to the pins of the amplifier? Any idea how to wire tis correctly?
According to the instructions there are 4 pins, with a bit of luck this is meant from top to bottom. The IR extension board has 3 pins.
(2) PH2.0-4P: VCC3V3, GND, IR, ADC
PIN IR is used for connection to IR receiver
PIN ADC is used for external buttons, please refer to the circuit
on the right for key definitions