The other two pins (here shown with red wires) Soldered together with a long wire and connected to the Pico’s GND pad. The picture above shows how each resistor was wired up to the ground of the LED and the switch. A wire was soldered to the other pins of the switches and LEDs and these all went to their own GPIO pin toĮnsure all LEDs can be controlled individually and switches can be read directly. These were then connected together for all nine switches equipped with LEDs and the Pi Pico’s A resistor was installed on each switch from the LED’s ground to one pin of the North-Facing configuration where the LEDs are located on the upper part of the switch, this looks better with Hand-wiring the switchesįirst install the switches in the case, the snap in place but pay attention to the orientation. Open on one end, so LEDs can be fitted without opening the case. This can be done using a special tool, which can be 3D printed. (If you opt to forgo the LEDs this step can be skipped.)įor this project I used Gateron Green mechanical switches, while these have space to fit a 1.8 mm LED, the switch needs Paint and provide a finish that is durable and more pleasant to touch. Finally, a few layers clear coat were applied so seal the Next, some Vallejo Gun Metal (acrylic paintįor miniatures) was applied by dabbing it on with a sponge. Sanding and priming the case a black base coat was applied. I wanted to match the case with my current keyboard, which has a dark gray anodized aluminium case. You download the STL files here directly. If you want to print this yourself, grab my design from Thingiverse or I prefer PETG printed using these settings, The result was a nice case with a spot that In addition, I made the case a bit higher as more wires need to fit inside. Replaced the bits that hold the Pro Micro with the inside part from a pico case. I started withĪ design that uses a Pro Micro at the core and Mixed two designs using Blender to create a suited case. 9x 1.8 mm 2V LEDs (current 15-20 mA) (optional)Īs there were no 3x3 MacroPad cases that would fit a Raspberry Pi Pico, I.9x Mechanical keyboard switches (Gateron, Cherry MX, Kailh… should all fit).1x a MacroPad case (3D printed, STL here).If you do want to do this from scratch, here is a list of items to buy. Switches, LEDs and keycaps were left over from my keyboard build. To change scenes or trigger an animation in OBS, hence these are often referred to as StreamDecks.įor this project I had a lot of the components at hand. This is a small keypad, where each switch can be programmed with a certain button orĬombination of buttons to quickly execute often needed shortcuts. I decided to put left-over parts from my mechanical keyboard and a Raspberry Pi Pico to good use and build a
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