Description The M5Stack Mini Weight Unit (HX711) Load Cell Amplifier is a compact weighing unit built around the HX711 24-bit A/D converter chip for high-precision electronic scale applications. It amplifies the load cell signal through a built-in low-noise programmable gain amplifier and outputs data through a simple digital interface. The M5Stack Mini Weight Unit (HX711) Load Cell Amplifier uses Channel A of the HX711, with programmable gain settings of 128 or 64 for full-scale differential input amplitudes of ±20mV or ±40mV. It is suitable for miniature scales, kitchen scales, industrial weighing systems, warehouse logistics, food processing, and pharmaceutical measurement projects. Features HX711 high-precision 24-bit A/D converter Low-noise programmable gain amplifier Programmable gain options of 32, 64, and 128 Channel A gain settings of 128 or 64 10SPS output data rate Compatible with UiFlow1, UiFlow2, Arduino IDE, ESP-IDF, and PlatformIO Specifications Unit Type Weighing unit and load cell amplifier Converter Chip HX711 24-bit A/D converter Active Channel Channel A Programmable Gain 32, 64, and 128 Full-Scale Differential Input ±20mV or ±40mV on Channel A Output Data Rate 10SPS Sensor Range Depends on the strain gauge and controller chip Product Size 32.0 x 24.0 x 10.2mm Product Weight 5.1g Package Size 138.0 x 93.0 x 11.2mm Gross Weight 13.0g Applications Miniature weight scales Kitchen scales High-precision weighing systems Industrial automation control Logistics, warehouse management, food processing, and measurement projects Product List 1 x Unit Weight 1 x HY2.0-4P Grove Cable (20cm) 1 x HT3.96-4P Terminal Other Content PinMap HY2.0-4P Wire Function Black GND Red 5V Yellow CLK White DAT Resources Product documentation Schematic PDF HX711 datasheet Arduino example with M5Core UiFlow1 documentation UiFlow2 documentation EasyLoader example FAQ What chip does this weighing unit use? It uses the HX711, a 24-bit A/D converter designed for high-precision electronic scales. Which HX711 channel is used? This design uses Channel A, with programmable gain settings of 128 or 64. What projects is it suitable for? The M5Stack Mini Weight Unit (HX711) Load Cell Amplifier is suitable for miniature scales, kitchen scales, industrial weighing systems, logistics, food processing, and precise measurement projects.
