Bu Kumpas Artık Bilgisayara Yazıyor! Ucuz Çin Malı Kumpası ESP32 ile Hackledim

In this video, I'm transforming a cheap Chinese-made digital caliper into a smart caliper by connecting it to a computer using an ESP32-S3 Mini. Normally, this caliper only displays measurements on its own screen. I used its hidden data port to read the Clock and Data signals. For this, I printed a special connector using a 3D printer, prepared contact pins with CAT5 wires, and tested the signals with a multimeter and oscilloscope. Since the caliper communicates at 1.5V, I added a level shifter circuit so the ESP32 could read it. Then, the ESP32-S3 Mini reads the measurement value from the caliper and sends it to the computer via WebSocket. The Python code running on the computer then prints this value to the system like keyboard input. Result: I take the measurement, press the physical button I added to the caliper, and the value is automatically written to FreeCAD or Excel. This project; This turned out to be a great maker project for those interested in electronics, DIY, reverse engineering, ESP32, 3D printing, WebSocket, Python, and CAD automation. STL files: https://www.thingiverse.com/thing:241... Key parts used: Inexpensive digital caliper ESP32-S3 Mini 3D printed custom connector CAT5 single-core cable Level shifter circuit Breadboard Physical button Multimeter Oscilloscope Python script FreeCAD Excel Titles in the video: 0:00 Inexpensive caliper now sends measurements to FreeCAD 0:10 The purpose of the project 0:50 The caliper's hidden data port 1:20 3D printed custom connector 1:55 Preparing pin contacts with CAT5 cables 3:30 Securing with super glue and freezing spray 5:44 Pin testing with a multimeter 6:05 Operating the caliper with 1.5V 6:20 Clock and Data signals on the oscilloscope 7:09 ESP32-S3 Mini and breadboard circuit 7:20 Level shifter Why is it necessary? 7:52 The idea of ​​adding a physical button to the caliper 8:20 WebSocket and Python logic 8:48 First data reading test 8:50 Live data test on the phone 9:05 Sending live measurements on FreeCAD 9:40 Automatically printing serial measurements to Excel If you enjoy such electronics, DIY, and reverse engineering projects, don't forget to subscribe to the channel. #DIY #ESP32 #SmartCaliper #FreeCAD #ReverseEngineering In this project, I converted a cheap digital caliper into a smart wireless caliper using ESP32-S3 Mini, WebSockets, and Python. The measurement can be sent directly to FreeCAD or Excel as keyboard input.