Hacking Digital Calipers with CircuitPython #CircuitPython #Hacking @jorgegarciadev @Microchipmakes

Via Jorge Garcia – the SAM32 dev board is amazing, squeezing in a Microchip SAMD51, an ESP32, and an microSD card onto an Adafruit Feather sized PCB, making it plug compatible with dozens of add-on boards.

In the current project, the SAM32 is interfaced with some digital calipers:

It’s tedious to write down digital caliper measurements while working with research samples since you have to set the calipers down each time to record the value.

The solution: Use a SAM32 to read the caliper measurement, decode the protocol, and emulate keystrokes over USB to enter data into spreadsheet. Note: the user specifically wanted the calipers to be wired

The post goes through the process of looking for a compatible tool and interfacing. All the code necessary is then presented with the interface coded in CircuitPython.

See the post for full details and code. Well done!

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Filed under: CircuitPython, feather, hackers, reverse engineering —
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