Keyestuido DIY Electronic Scale Starter Kit For Arduino Education Programming based on UNO R3 + 64 Page Book Manual

The Keyestudio DIY Electronic Scale Starter Kit is an open-source educational project designed for students, makers, and electronics hobbyists who want to build their own functional digital scale. Based on the popular UNO R3 microcontroller, this kit includes a 64-page manual to guide you through the assembly and programming process. It is the perfect hands-on introduction to sensor calibration, analog-to-digital conversion, and Arduino programming.

Build your own digital scale

This open-source kit allows enthusiasts to build a fully functional electronic scale from scratch. It combines a dedicated weighing module, an HX711 analog-to-digital converter chip, and an Arduino UNO R3 to make calibration and measurement straightforward.

Comprehensive educational guide

The kit includes a detailed 64-page printed book manual alongside online wiki tutorials and software resources. This step-by-step documentation helps students and educators easily master the coding and hardware connections.

High-precision analog-to-digital conversion

At the heart of the scale is the HX711 AD chip, which is specialised for high-precision weighing applications. It features an on-chip low-noise programmable amplifier with selectable gain options of 64 or 128.

Integrated power and clock management

The HX711 chip provides a stabilised voltage supply that directly powers both the external load sensor and the internal AD converter. Its internal clock oscillator operates without any external devices, though an external crystal or clock can be used if required.

Simplified register-free control

All control signals are driven directly by pins, removing the need to program internal chip registers. This design simplifies the programming interface, making it highly accessible for beginners learning Arduino.

Flexible data output rates

The system supports selectable output data rates of either 10Hz or 80Hz, allowing you to balance response time and measurement stability. Dual-channel inputs (Channel A or B) provide versatile sensor connection options.