PCBs

This is the first prototype board. All my prototypes are made with red soldermask. The board was used during the first half year of development. The only real issue was two missing pullup resistors. Otherwise it worked as expected.

After the hardware handshake of the PCB was confirmed to be working and the design of the mechanical part of the interface was finished, I’ve finalized the design of the board and ordered the first production units. The following two images show the top and bottom side of the board.

It’s a two layer design. The SMD parts were soldered by the manufacturer of the PCB. My job was to add the radial electrolytic capacitor and the sockets for the battery and the Teensy.