Circuit Playground Express and Similar
Use M2.5 x 20mm machine screws and M2.5 hex nuts. Thread the hex nuts onto the screws BEFORE inserting them into the raised mounting bosses.
Find the 3 GND (ground) locations on the Circuit Playground. Using machine screws, align the GND holes with the raised bosses on the Slide.
Check the alignment of the USB and power ports before tightening the screws. In 2 of the 3 possible mounting options, the ports are on the diagonal rather than square to the Click.
1. Drive the machine screws firmly into the raised bosses.
2. Tighten the hex nuts securely to the Clrcuit Playground.
3. Use alligator clips on the machine screws and the rest of the Circuit Playground.
If your circuit isn’t working as expected, check to be certain the hex nuts are making good contact with the board.