Firmware development for the ProMicro nRF52840 (V1940) — the nice!nano v2 compatible clone also sold as SuperMini nRF52840, nRF52840 Pro Micro or nRFMicro (nRF52840 QIAA, Cortex-M4F @ 64 MHz, 1 MB flash / 256 KB RAM, BLE 5 + 802.15.4, native USB, Adafruit UF2 bootloader with SoftDevice S140). Covers the PlatformIO + Adafruit nRF52 Arduino setup for a board that ships in neither, the vendored board definition and Pro Micro pin map, USB CDC via TinyUSB, Bluefruit BLE, the 32.768 kHz crystal that c
mdr add alexex1993/mcu-skills/nrf52840-promicro@git:20260827.86b4e50mdr add alexex1993/mcu-skills/nrf52840-promicro@sha256:2db1c7e835e89180[](https://markdownregistry.com/a/art_qxbi7gbaldihzyx2)
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alexex1993/mcu-skills · 15 stars · license MIT · pushed 2026-09-03 · branch main
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