A few years ago Joey Castillo introduced Sensor Watch, a $35 board designed to fit inside the shell of a Casio F-91W wristwatch, giving a classic watch some modern hardware including an ARM Cortex-M0+ ...
The classic Casio wristwatch, a staple of affordable and reliable timekeeping, has been given a modern upgrade with the integration of a cutting-edge microcontroller. The Sensor Watch, as it is now ...
Casio's 'F-91W' was released in 1989, and its design has remained almost unchanged since its debut up until the time of writing. Coupled with its impressive cost performance, it's also known as a ...
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