Adafruit ItsyBitsy nRF52840 Express - Bluetooth LE _RPI_SD_SDCARD This kit has everything you

This kit has everything you need (just add a Raspberry Pi Zero WH and micro-SD card) to build your own mini macro pad

You've got the book

AND with optional expander board plugged into each too (available separately)

Strips solid or stranded core wire in the most common electronic sizes: 20

so Arduino

Adafruit ItsyBitsy nRF52840 Express - Bluetooth LE _RPI_SD_SDCARD This kit has everything youWhat's smaller than a Feather but larger than a Trinket? It's an Adafruit ItsyBitsy nRF52840 Express featuring the Nordic nRF52840 Bluetooth LE processor! Teensy & powerful, with an fast nRF52840 Cortex M4 processor running at 64 MHz and 1 MB of FLASH this microcontroller board is perfect when you want something very compact, with a heap load of memory and Bluetooth LE support This Itsy is your best option for tiny wireless connectivity it can act as