The LED driver board will take the 3.3V PWM signal from the Feather M0 and use it to control 12V power needed for the LED strips. One board connected to a 12V 1A power supply is capable of pulsing the red channel of two 5-meter LED strips without the need for a heatsink.
The board itself is quite simple. Check out the schematic below:
We put down a 1 Megaohm resistor for the pulldown resistor but later found 10Kohm works better!
Solder the necessary connections between components using solid core hookup/jumper wire. Check the image below to reference what connections need to be made:
The finished board should look something like this:
Label the terminal block to avoid incorrect connections. You can use a marker, paint, or the best of both worlds - a paint marker.
Since we're only using the red channel of the LED strips, each 12V LED Driver board will be able to power 2 x 5-meter strips. Build additional boards as needed …