Here is a list of aditional hardware add-ons that can add funcitonality to your CYD
A speaker can be attached to the display with a 1.25mm JST connector to the connector labled "SPEAK" (or soldered)
Check out the HelloRadio example for the code on how to use it.
Most small 8 Ohm speakers should work. Maybe worth adding a 1.25mm JST connector to it to make it easy to add remove.
- Speaker with 1.25mm JST connector (2pcs) - Aliexpress* - Tested, works right out of the package.
- 2pin 1.25mm JST connectors - Aliexpress* - Not purchased by me, but should work