If you change the code/sketch it 'could' work...
but if you leave the purple (D4).. and remove the SS (D10)..
it should work out of the box..
you also need to use D9 >>> electrolytic cap >>> speaker >>> GND
If you change the code/sketch it 'could' work...
but if you leave the purple (D4).. and remove the SS (D10)..
it should work out of the box..
you also need to use D9 >>> electrolytic cap >>> speaker >>> GND