supremeOne

Arduino UNO speed measurement expansion board

Overview

Referring to the design and all software codes of https://oshwhub.com/FJ956391150/arduino-ce-su-qi, the welding process is simplified.

There is a small bug in the original author's code, which is that the parameter cannot be adjusted to display nan

because there is no data in the flash and cannot be read.
Data can be written manually once. That will solve this problem.

void setup(){ float x = 10; // Write initial data M float y = 6; // Write initial data d EEPROM.put(0, x); delay(10); EEPROM.put(4, y ); delay(10);}

You also need to modify the distance of the optocoupler in the code to 57277

Design Files

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Update:2025-06-24 06:59:57

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