Unit Weight-I2C
Description
Unit Weight-I2C is a weight acquisition transmitter unit that adopts the "STM32 + HX711 chip" solution, achieving 24-bit precision weight measurement through I2C communication. This unit has unique advantages, supporting multiple devices connected in parallel on the same I2C bus, providing flexibility for users to conduct measurements over a larger range and obtain more data collection points. It is widely applicable in various fields such as industrial production, healthcare, logistics, laboratory research, and food processing.
Features
- STM32F030F4P6 + HX711
- 24-bit measurement accuracy
- I2C communication
- Development platforms: Arduino, UIFlow, etc.
Includes
- 1 x Unit Weight-I2C
- 1 x HY2.0-4P Grove cable (20cm)
- 1 x VH3.96-4P
Applications
- Miniature weight scale
- Food processing
- Logistics and transportation
- Laboratory research
Specifications
| Specification | Parameter |
|---|---|
| MCU | STM32F030F4P6@32-bit ARM |
| Resolution | 24-bit |
| Communication | I2C (0x26) |
| Operating Temperature | 0 ~ 40°C |
| Product Size | 56.0 x 24.0 x 11.3mm |
| Product Weight | 5.2g |
| Package Size | 138.0 x 93.0 x 12.3mm |
| Gross Weight | 13.3g |
User Manual
- Connection Diagram
Schematics
1/1
PinMap
Unit Weight-I2C
| HY2.0-4P | Black | Red | Yellow | White |
|---|---|---|---|---|
| PORT.A | GND | 5V | SDA | SCL |
Model Size
Datasheets
Softwares
Arduino
UiFlow1
UiFlow2
Internal Firmware
| Firmware Version | Update | Protocol |
|---|---|---|
| v3 | First Release Version | Unit Weight-I2C I2C Protocol v3 |
| v4 | Removed the absolute value restriction on ADC variation values to enable displaying negative weight measurements. | Protocol same with v3 |
M5 DAPLink
If you don't have the STM32 downloader tool, you can refer to the
M5 DAPLink
tutorial and use the Core2 or CoreS3 as a programmer to complete the firmware update for the device.
Protocol
