The Scales Unit from M5Stack is a high precision low-cost I2C port weighing sensor, with a total weighing range of 20kg.
The unit adopts the STM32F030 as the controller and the HX711 as the sampling chip + 20kg weighing sensor. Inlcudes button and programable RGB LED.
This Unit offers a highly integrated weighing solution, suitable for the applications of weighing, item counting, item movement, checking and more.
Need a smaller-scale unit? Find one here
Features
- HX711:
- High precision 24bit ADC
- Programmable gain amplification 32, 64 and 128
- 10SPS output data rate
- I2C port
- Development platform: Arduino, UIFlow(To be supported soon)
Package Contents
- 1x Scales Unit
- 1x HY2.0 4-pin Cable (20cm)
Specifications
| MCU | STM32F030 |
| ADC | HX711 |
| Communication | I2C:0x26 |
| LED | SK6812(PA7) |
| Function Button | Tare (PA2) |
| Gross Weight | 96g |
| Net Weight | 87g |
| Package Size | 56*40*41mm |
| Product Size | 42*43*58mm |
| Enclosure Material | Plastic ( PC ) |
Resources
- Product Documentation
- Schematic
- Arduino Example
- Config Scales Unit I2C Address
- Scales Demo
- Datasheet
Pinout
| Scales Unit | SCL | SDA | 5V | GND |
| M5Core (PORT A) | GPIO22 | GPIO21 | 5V | GND |
| M5Core2 (PORT A) | GPIO22 | GPIO21 | 5V | GND |
| M5Atom (PORT A) | GPIO32 | GPIO26 | 5V | GND |
| M5StickC Plus (PORT A) | GPIO33 | GPIO32 | 5V | GND |
| M5Station (PORT A1,A2) | GPIO33 | GPIO32 | 5V | GND |
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