M5Stack Mini Weight Module HX711 Sensor 24 Bits Weighing Pressure Sensor I2C Interface for Audrino Grove Port
$21.99
M5Stack Mini Weight Module HX711 Sensor 24 Bits Weighing Pressure Sensor I2C Interface for Audrino Grove Port

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

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Product Description

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

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


More Detailed Photos:

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

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