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

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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

Offical Video
Forum
Datasheet – HX711

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:

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