Assembling the T9 Macropad

(Project Root)

A few things before you get started:

Step 1: Attach your dev board

Solder the castellated pins of your dev board on to the pads on the Macropad as shown. The two pins closest to the USB jack on your dev board should line up with the uppermost pads on the macropad. Solder all pins that come in contact with a pad, and note that some dev boards may extend beyond the pads.

Step 2: Solder the diodes

Line your 12 diodes up with white silkscreen outlines on the macropad - they're labeled D1 through D12. Each diode should have a stripe or dark marking indicating which terminal is the cathode (-). Orient each diode such that it's cathode terminal is pushed through the hole on the right. Push each positive terminal through the corresponding left hole, and solder all terminals to the board.

Step 3: Attach your key switches


Push your key switches into each of the 12 slots, and solder the metal terminals to the macropad from the bottom.


That's it for physical assembly. Instructions for installing firmware on a fresh Pimoroni Tiny 2040 are here