What makes Micro:bits different?
summary
Micro:bits are tiny MicroPython devices with LEDs, two buttons, compass, accelerometer, Bluetooth, an edge connector and a built‑in radio; they run at ~16 MHz, use a while True main loop model (no Python interrupts) and require careful handling of timing. Teaching focuses on concrete traps like is_pressed vs was_pressed, debuggable LEDs and attachments (buggies, 7‑segment, LED strips) and simple networking: a classroom demo uses 10 boards in pairs sending letters with radio.send / radio.receive (about 80 channels, ~253 bytes payload). Costs about A$35 each (bulk cheaper).
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