Other MCUs
The boards here don't share a toolchain with each other, or with the main three. Teensy, Adafruit's SAMD line, STM32 Nucleo, and the micro:bit ecosystem each pull in a separate workflow — know which one you need before browsing specs.
Specialists: Teensy for high-clock audio and USB, Adafruit SAMD boards running CircuitPython or the Arduino IDE, proper STM32 eval kits, and the micro:bit classroom ecosystem. Schematik builds target ESP32, Arduino Uno, and Pico; come here when you have a specific reason to.
- The Adafruit SAMD line — Feather M4 Express and ItsyBitsy M4 (ATSAMD51), Feather M0 and ItsyBitsy M0 (SAMD21) — runs CircuitPython or the Arduino IDE and is the most straightforward sideways move from a 3.3V Uno.
- Teensy 3.5, 3.6, and LC serve high-clock audio and USB work; ST NUCLEO-F446RE, NUCLEO-L476RG, and the Waveshare Open405R-C and OpenH743I-C are proper STM32 eval boards for STM32Cube toolchains.
- The micro:bit ecosystem is the largest slice of the group: Bit:Bot XL robots, Adafruit CRICKIT, BitMaker Grove expansion, and dozens of accessories all use the edge connector and target MakeCode or MicroPython rather than the Arduino IDE.
- The long tail is here by design: Daisy Seed for synth work, Netduino for .NET embedded, PIC and LPC eval boards — hardware that shares a toolchain with nothing else in the catalogue.
