Selling Point Hx711 Weight Weighing Load Cell Conversion Module Sensors Ad Module for Arduino Microcontroller Selling Point Two selectable differential input channels On-chip active low noise PGA with selectable gain of 32, 64 and 128 Simple digital control and serial interface: pin-driven controls, no programming needed Selectable 10SPS or 80SPS output data rate Size:25mmx16mm/0.98"x0.62"(inch) (approx) Product description Features: Two selectable differential input channels On-chip active low noise PGA with selectable gain of 32, 64 and 128 On-chip power supply regulator for load-cell and ADC analog power supply On-chip oscillator requiring no external component with optional external crystal On-chip power-on-reset Simple digital control and serial interface: pin-driven controls, no programming needed Selectable 10SPS or 80SPS output data rate Simultaneous 50 and 60Hz supply rejection Current consumption including on-chip analog power supply regulator: normal operation < 1.5mA, power down < 1uA Operation supply voltage range: 2.6 ~ 5.5V Operation temperature range: -40 ~ +85 This module uses 24 high-precision A / D converter chip hx711, is designed for high-precision electronic scale and design, with two analog channel input, the internal integration of a gain programmable amplifier 128. Input circuit can be configured to provide an electrical bridge bridge voltage (such as pressure, weight) sensor model is an ideal high-precision, low-cost sampling front-end module