Raspberry Pi fans on the lookout for a tiny Raspberry Pi Pico mini keyboard or keypad could also be within the aptly named Micro Gherkin. The tiny keyboard gives a compact kind consider each the switches and the pi pico mini PC are floor mounted again to again. It’s creator explains extra concerning the inspiration, design and building of the Micro Gherkin.

“The 30 switches were selected from the jlcpcb.com SMT parts inventory. I had 5 boards made and assembled. The BOM is only 3 parts; switches, Pi Pico and the 3 tool marks (registration holes). JLCPCB supplies and SMT assembled the switches. When I placed the order the Pick and Place preview looked incorrect, but after the order was placed and reviewed the preview was corrected.”

“Four of the boards. Top, bare bottom, bottom with Pi Pico soldered on, and an assembled board with 4mm M2 spacers and screws. The board is running PRK firmware. PRK is very easy to use. It mounts the board as a USB drive so you can directly edit the configuration file with a text editor, much like KMK firmware/CircuitPython. I used the prk_pipigherkin configuration. The only change needed was to the pin definitions.”

“I had additionally made a prime plate, however the switches are so quick that they don’t protrude in any respect and may’t be pressed. Also, in 2 of the 5 boards the switches weren’t aligned properly sufficient to suit the highest over them. LCSC.com has variations of this change with completely different heights and weights, however JLCPCB solely had the 2mm tall/250g model out there for meeting. This is just too small (64x26mm) for a sensible keyboard, however it makes a good, very compact macropad. Assembled with 4mm spacers it is just 9mm thick. “

To study extra concerning the Raspberry Pi Pico Micro Gherkin mini keyboard soar over to the 40% Keyboards web site by following the hyperlink beneath. Files on Git by way of the hyperlink beneath.

Source : Adafruit : Git : 40 Percent Club

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