Firmware development for the Arduino Nano (A000005, ATmega328P @ 16 MHz, 5 V) — its 30 KB usable flash, 2 KB SRAM, 1 KB EEPROM, 8-channel 10-bit ADC, six 8-bit PWM pins across three timers, UART shared with the USB-serial chip, I2C on A4/A5, SPI on D10–D13, sleep modes, and the Arduino AVR core + PlatformIO setup around them. Use when working on this board or any ATmega328P Nano clone (FTDI or CH340 USB): project setup, platformio.ini, old-vs-new bootloader uploads, pin mapping, A6/A7 restrictio
mdr add alexex1993/mcu-skills/atmega328p-nano@git:20260823.c7a4adfmdr add alexex1993/mcu-skills/atmega328p-nano@sha256:31563dc4a2488b8c[](https://markdownregistry.com/a/art_k7m7te34ag5mckrr)
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| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260823.c7a4adf latest | 2026-08-23 | c7a4adf | 11,546 B | A | view · diff |
| git:20260821.cc0e8f7 | 2026-08-21 | cc0e8f7 | 11,401 B | A | view |
alexex1993/mcu-skills · 15 stars · license MIT · pushed 2026-09-03 · branch main
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