> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt

# M5Stack Mini Weight Unit (HX711) Load Cell Amplifier

**Type:** Product page · **SKU:** CE07679 · **Brand:** [M5Stack](https://core-electronics.com.au/brands/m5stack-australia)
**Page:** https://core-electronics.com.au/m5stack-mini-weight-unit-hx711-load-cell-amplifier.html ([markdown](https://core-electronics.com.au/m5stack-mini-weight-unit-hx711-load-cell-amplifier.html.md))

The M5Stack Mini Weight Unit Load Cell Amplifier integrates an HX711, 24-bit A/D chip that is specifically designed for an electronic weighing device.

## Pricing

- **Price:** $7.55 (inc GST) — $6.86 AUD, exc GST
- **Quantity discounts:** 10+ $6.59 (exc GST) · 25+ $6.38 (exc GST)

## Availability & dispatch

- In stock, ships same business day if ordered before 2PM (Australia/Sydney).
- We can dispatch 2 today, and up to 300 more in 8–19 days.

## How to buy

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- **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt
## Description

WEIGHT integrates a HX711 24 bits A/D chip 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.

![](https://core-electronics.com.au/media/wysiwyg/product_images/mini-weight-unit-u030-desc-img-2.jpg)

![](https://core-electronics.com.au/media/wysiwyg/product_images/mini-weight-unit-u030-desc-img-1.jpg)

**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°C ~ +85°C
- 16 pin SOP-16 package
- Program Platform: Arduino, UIFlow(Blockly, Python)
- Two Lego-compatible holes

**Include**

- 1x WEIGHT Unit
    1x Grove Cable

**Applications**

- Micro weight meter
- Kitchen Scale

**Specification**

- Operating Voltage g
- Operating Current g
- Net weight 8g
- Gross weight 20g
- Product Size 40\*24\*12mm
- Package Size 67\*53\*12mm

**Documents**

- [easyloader](https://docs.m5stack.com/#/en/unit/weight?id=easyloader)
- [schematic](https://docs.m5stack.com/#/en/unit/weight?id=schematic)
- [related-link](https://docs.m5stack.com/#/en/unit/weight?id=related-link)
- [example](https://docs.m5stack.com/#/en/unit/weight?id=example)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/m/i/mini-weight-unit-u030-1.jpg)