(en) Paul Dietz, William Yerazunis et Darren Leigh, « Very Low-Cost Sensing and Communication Using Bidirectional LEDs », Mitsubishi Electric Research Laboratories, Cambridge, Massachusetts, (lire en ligne)
microbit-micropython.readthedocs.io
(en) BBC micro:bit, BBC micro : bit MicroPython Documentation, (lire en ligne [PDF]), p. 21