HX711 Dual-channel 24-bit A/D Weight Pressure Sensor Module

HX711 Dual-channel 24-bit A/D Weight Pressure Sensor Module

This is an HX711 Dual-channel 24-bit A/D Weight Pressure Sensor Module Based on HX711 Chip.The Load Cell Amplifier and ADC Module is a small breakout board for the HX711 IC that allows you to easily read load cells to measure weight. By connecting the module to your microcontroller you will be able to read the changes in the resistance of the load cell and with some calibration you’ll be able to get very accurate weight measurements. This can be handy for creating your own industrial scale, process control, or simple presence detection.

Features & Specifications

• Two selectable differential input channels.
• Recommended excitation voltage: 5-10V.
• On-chip active low noise PGA with a selectable gain of 32, 64 and 128.
• On-chip power supply regulator for load-cell and ADC analogue power supply.
• Selectable 10SPS or 80SPS output data rate.
• 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.
• Simultaneous 50 and 60Hz supply rejection.

Pinouts

Analog Side

• E+  : Excitation positive
• E-  : Excitation negative
• A-  : Channel A Negative Input
• A+  : Channel A positive Input
• B-  : Channel B Negative Input
• B+  : Channel B positive Input

Digital Side

• GND: 0V / Ground Power Connection
• DT: Data IO Connection
• SCK: Serial Clock Input
• VCC: Power Input