# Patch instruction to solder rp2040-zero module instead of teensyLC module ![image](rp2040_42_patch.png) 1. Solder one x6 and one x7 pin headers on the green marking. 2. Prepare wire and solder on GND pad on the PCB. 3. Prepare wires and solder on gpio 0 and 1 on the PCB. 4. Solder rp2040-zero on the two pin headers. 5. Solder GND, gpio 0 and gpio 1 on the rp2040-zero. 6. Solder wires according to picture above between rp2040-zero and PCB. ![image](rp2040_42_patch_result.jpg)