U030 · M5Stack
Unit Weight is a weighing unit. It integrates the 24-bit A/D converter chip HX711, which is specifically designed for high-precision electronic scales. This design utilizes only Channel A, amplifying the acquired signal through its built-in low-noise programmable gain amplifier (PGA). The programmable gain of Channel A can be set to 128 or 64, corresponding to full-scale differential input signal amplitudes of ±20mV or ±40mV, respectively. All control signals are driven by pins, eliminating… (M5Stack U030)
| Part number | U030 |
|---|---|
| Manufacturer | M5Stack |
| Category | Sensors › Force, Load & Weight |
| Pins | 4 |
| Voltage (max) | 40 mV |
| Resolution | 24 bit |
Mini Weight Unit (HX711) Load Cell Amplifier pinout
| Pin | Name | Type | Description |
|---|---|---|---|
| 1 | SIG1 | bidirectional | PORT.B: GPIO/analog; PORT.C: UART - see the unit's pin map |
| 2 | SIG2 | bidirectional | PORT.B: GPIO/analog; PORT.C: UART - see the unit's pin map |
| 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.
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