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