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DIY Data Logging Scale with Android App (w/source)

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A Bluetooth Low Energy (BLE) Seeed Xiao ESP32-C3 powered scale, with an Android app for data logging. I used Arduino for the microcontroller programming, and MIT App Inventor for the Android App development.
The app will record data on command, chart it, store internally, write to external CSV file, and retrieve data from an external CSV file for display.
The original scale is a Greater Goods with 750g load cell
HX711 ADC
Seed Xiao ESP32-C3 microcontroller
OLED display 1.3" 128x64
=== Timestamps ===
00:00 Introduction
01:19 Breaking down the scale
02:39 Battery and ADC install
03:20 Keeping the buttons
04:26 Integrating the display
05:24 Wiring
06:41 Brief code highlights
07:33 Scale overview
08:34 App overview
10:50 Conclusion
The app will record data on command, chart it, store internally, write to external CSV file, and retrieve data from an external CSV file for display.
The original scale is a Greater Goods with 750g load cell
HX711 ADC
Seed Xiao ESP32-C3 microcontroller
OLED display 1.3" 128x64
=== Timestamps ===
00:00 Introduction
01:19 Breaking down the scale
02:39 Battery and ADC install
03:20 Keeping the buttons
04:26 Integrating the display
05:24 Wiring
06:41 Brief code highlights
07:33 Scale overview
08:34 App overview
10:50 Conclusion
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