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Sensorwatch pro – Hackable ARM Cortex M0 brain upgrade for Casio's iconic F-91W
A more hackable ARM Cortex M0+ brain upgrade for Casio's iconic F-91W
This small circuit board, less than an inch in diameter, replaces the original quartz movement in a Casio F-91W or A158W watch to put the capabilities of an ultra-low-power ARM Cortex M0+ microcontroller on your wrist. The Simple Calculator face, by Patrick McGuire, allows you to do math operations on Sensor Watch, including addition, subtraction, multiplication, division, square roots and powers. Luckily, all our off-the-shelf parts are available in the quantities we need, with immediate shipping, and the global semiconductor shortage seems to have abated for the moment, so we hope to get Sensor Watch Pro manufactured very quickly after the close of the campaign!
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