$75 Sensor Watch Pro crams even more hardware into a classic Casio wristwatch

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+ microcontroller, a temperature sensor, and inputs for additional sensors. Now Castillo is back with Sensor Watch Pro, a $75 version that […]

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