U180 · M5Stack
Unit Weight-I2C is a weighing acquisition transmitter unit adopting the “STM32 + HX711 chip” solution, enabling 24-bit precision weight measurement via I2C communication. This unit offers unique advantages, supporting multiple devices connected in parallel on the same I2C bus, providing flexibility for conducting measurements on a larger scale and obtaining more data collection points. It is applicable in industrial production, healthcare, logistics, laboratory research, and food processing,… (M5Stack U180)
| Part number | U180 |
|---|---|
| Manufacturer | M5Stack |
| Category | Sensors › Force, Load & Weight |
| Pins | 4 |
| Resolution | 24 bit |
Weight I2C Unit (HX711) pinout
| Pin | Name | Type | Description |
|---|---|---|---|
| 1 | SCL | input | |
| 2 | SDA | bidirectional | |
| 3 | 5V | power | |
| 4 | GND | ground |
Schematic symbol and footprint
Schematic symbol
Footprint: Grove HY2.0 4-pin through-hole, 2.0 mm pitch — to scale, pad 1 in yellow (mm). Check against the datasheet before ordering PCBs.
Datasheet
Where to buy
| Supplier | Stock | Price | Status | |
|---|---|---|---|---|
| Mouser | 116 | $4.50 (1+) | View |
Stock and prices from the suppliers, checked 2026-10-08; excluding tax and shipping.
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