Arduino HX711 Load Cell Tutorial: Wiring, Code & Calibration

Build an Arduino digital weighing scale with an HX711 and load cell. Learn the wiring, Arduino code, calibration, and fixes for incorrect or negative weight readings. This step-by-step tutorial covers: • How a load cell and HX711 work • Connecting the load cell to the HX711 and Arduino • Reading weight with the bogde HX711 library • Setting your calibration factor using a known weight • Troubleshooting unstable, incorrect, and negative readings • Building a digital scale with an LCD and tare button CHAPTERS 0:00 Digital scale project overview 0:25 What is a load cell? 0:56 How a load cell works 1:25 HX711 amplifier explained 1:51 HX711 pin connections 2:22 Specifications explained 2:46 Load cell and Arduino wiring 3:21 Arduino HX711 code 3:44 Calibrating your weighing scale 4:17 Reading weight in Serial Monitor 4:32 Four common mistakes 5:01 Troubleshooting 5:28 LCD display and tare button project 5:53 Applications and limitations 6:15 What’s next? Which scale are you building—a kitchen scale, parcel scale, or another project? Tell us in the comments. Subscribe to SensorStack-easy for practical Arduino projects and sensor tutorials. Learn • Build • Grow #Arduino #HX711 #LoadCell