m5stack-cardputer-advlisted

Hardware reference and development helper for the M5Stack Cardputer Adv (also written Cardputer-ADV, product code K132-Adv) — a pocket ESP32-S3 computer with a 56-key keyboard, 1.14" screen, BMI270 IMU, and ES8311 audio codec. Use this skill whenever the user is writing, debugging, or planning firmware for a Cardputer Adv, or asks about its pinout, keyboard (TCA8418), IMU (BMI270), audio codec (ES8311), display (ST7789V2), Grove/EXT ports, battery behavior, or how to set it up in Arduino IDE, PlatformIO, UIFlow2, or ESP-IDF. Also trigger on the plain "Cardputer" name if context (TCA8418, BMI270, ES8311, or "Adv"/"ADV") makes clear it's the Adv variant rather than the original Cardputer, since the two boards differ in keyboard and audio hardware and are easy to mix up.
iot-forge/m5stack-skills · ★ 2 · Code & Development · score 73

Install: claude install-skill iot-forge/m5stack-skills

# M5Stack Cardputer Adv development The Cardputer Adv is an ESP32-S3-based pocket computer from M5Stack: a 56-key keyboard, 1.14" IPS screen, IMU, mic/speaker, Grove and EXT expansion ports, microSD, and a 1750mAh battery, all in an 84 x 54 x 19.6mm shell. Official docs: https://docs.m5stack.com/en/core/Cardputer-Adv Use this skill to write correct firmware for it (Arduino, PlatformIO, ESP-IDF, or UIFlow2/MicroPython), to explain what a pin or peripheral does, or to debug hardware-facing code (wrong I2C address, keyboard not responding, display not initializing, etc). ## Important: this is not the original Cardputer M5Stack sells two boards with very similar names and the same enclosure shape. Don't assume code for one works unmodified on the other. | Subsystem | Cardputer (original) | Cardputer Adv | |---|---|---| | Keyboard | GPIO scan matrix, no I2C | **TCA8418 I2C keypad controller** + interrupt on G11 | | Audio | NS4168 I2S amp + SPM1423 PDM mic | **ES8311 codec** (I2C control + I2S data) + NS4150B amp | | IMU | none | **BMI270** (I2C, 6-axis) | | Module | Stamp-S3 | Stamp-S3A | If the user's code touches raw GPIO pin numbers for the keyboard or mic, double-check which board it targets — a sketch written for the original Cardputer's GPIO matrix keyboard will not read keys correctly on the Adv, which exposes its keyboard only through the TCA8418 over I2C. The good news: **if you use the official `M5Cardputer` Arduino library (which wraps M5Unified/M5GFX), the same