M5Stack® Mini Weight Module HX711 Sensor 24 Bits Weighing Pressure Sensor I2C Interface for Audrino Grove Port

Description: WEIGHT intergrates an 24 bits A/D chip HX711 that is specifically designed for electronic weighing device. The input multiplexer selects either Channel A or B differential input to the low-noise programmable gain amplifier (PGA). Channel A can be programmed with a gain of 128 or 64, corresponding to a full-scale differential input voltage of 20mV or 40mV respectively, when a 5V supply is connected to AVDD analog power supply pin. Channel B has a fixed gain of 32. There is no programming needed for the internal registers. All controls to the HX711 are through the pins. In the test, we have this Unit channel A to connect a pressure sensor. Then use M5Core screen to display the weight data. Product 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 ran ge: 2.6 ~ 5.5V Operation temperature ran ge: -40 ~ +85 16 pin SOP-16 package Program Platform: Arduino, UIFlow(Blockly, Python) Two Le go-compatible holes Product Size: 32.2mm x 24.2mm x 10.5mm Product weight: 8g Package Included: 1x WEIGHT Unit 1x Grove Cable Application: Micro weight meter Kitchen Scale Related Link: Offical Video Forum Datasheet - HX711 EasyLoader click to download EasyLoader Example: 1. for Arduino IDE We used a pressure sensor(10kg) in this experiment. (Unit: gram) To get complete code, please click here 2. UIFlow To get complete code, please click here Schematic: Pinmap: If WEIGHT was connected to GROVE A M5Core(GROVE A) GPIO22 GPIO21 5V GND WEIGHT Unit DATA Pin (DAT) CLOCK Pin (CLK) 5V GND If WEIGHT was connected to GROVE B M5Core(GROVE B) GPIO36 GPIO26 5V GND WEIGHT Unit DATA Pin (DAT) CLOCK Pin (CLK) 5V GND If WEIGHT was connected to GROVE C M5Core(GROVE C) GPIO16 GPIO17 5V GND WEIGHT Unit DATA Pin (DAT) CLOCK Pin (CLK) 5V GND