Digital Caliper Computer Interface

Digital Caliper Computer Interface

Digital Caliper Computer Interface can be used to log data on a spreadsheet. Report by Jeremy S. Cook @

With a few pointers found here, he found that this data is transmitted in a continuous stream in 24 bits at 1.5 volts. He therefore level-shifted the 1.5V output to 3.3V and fed into a logic analyzer to further decode this data. With this worked out, input signals are fed into an ESP32 module on a special SAM32 board for the final(?) implementation, which also contains a Microchip SAM D51 microcontroller running CircuitPython. The SAM D51 handles sending the data to a computer, which is entered nicely into Excel!

Digital Caliper Computer Interface – [Link]

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Mike is the founder and editor of, an electronics engineering community/news and project sharing platform. He studied Electronics and Physics and enjoys everything that has moving electrons and fun. His interests lying on solar cells, microcontrollers and switchmode power supplies. Feel free to reach him for feedback, random tips or just to say hello :-)

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