Gridinity Macropad

Gridfinity MacropadMacropad that fits in a 2x2 gridfinity grid, it runs an ESP8266 that controls the 9 buttons using a grid pattern. Parts:9 x Mechanical keyboard switches ESP8266 (Usb-C version)Length of small wire8 x m3x15mm bolts4 x m3 heat threaded insertsInstructionsThis is a pretty simple electronics project that would be just fine for most beginners.After printing all the parts, the mechanical keyboard switches can be put into the grid holder, and soldered together in a matrix and connected to the ESP. The wiring guide can be seen belowPhoto of the switches soldered together:These columns and rows should then be connected to the ESP8266 as shown in the above schematic.Once that is done, the ESP can be inserted into the case and screwed in using 4 m3 bolts.SoftwareTo get this assembly to be more than just a fidget toy, software needs to be flashed to the micro controller, this can be done in numerous ways and can be used for varous different uses. I chose to use this macropad for