Reference

Robot Butterfly Assembly - Chapter 6/14

Thread the battery wire through the side entry on the circuit board. Solder the red wire to the + pad on PS1, and the black wire to the - pad on PS1. The wires should be threaded through the side entry before soldering. Be sure to double check the polarity before soldering.

Note: Make sure the battery component is assembled to the battery bracket first.

Connect Keystone to the headers. The USB port should face the external edge of the Chonky circuit board.

Connect Boostlet to the header, such that it does not extend beyond the edges of the Chonky board. The capacitor will fit through the circle cutout in Chonky's circuit board.

Connect the power switch cable to SW1.

Congratulations! The Chonky electronics are assembled! Next up is testing it.

At this point, it's a good idea to double-check all connections, solder joints, and component alignments before moving to testing.