Unit Mini Scales
Description
Unit Mini Scales is an integrated mini weighing unit that incorporates a 5 Kg load cell, an ADC acquisition chip HX711, and a protocol conversion MCU, allowing direct output of weighing results. The product is equipped with an STM32F030F4P6 microcontroller, uses the I2C communication protocol for external communication, and supports multiple modules working together simultaneously. Additionally, it features an SK6812 RGB programmable LED indicator and a functional button, enabling users to easily perform zero calibration and tare adjustment. The top of the product is designed with M3 nut fixing holes, providing more installation options. Unit Mini Scales is suitable for scientific experiments, industrial production, and other fields.
Features
- STM32F030F4P6@32-bit ARM Cortex-M0 processor
- I2C communication, supports multiple units in parallel
- SK6812 RGB
- Button for zeroing and tare adjustment
- Maximum weighing capacity of 5KG
- Programming platforms: Arduino, UIFlow, Python, etc.
Includes
- 1 x Unit Mini Scales
- 4 x M3 nuts (hexagon 6 x 2.25mm)
- 1 x HY2.0-4P Grove cable (20cm)
Applications
- Scientific experiments
- Industrial production
Specifications
| Specification | Parameter |
|---|---|
| Sensor ADC Chip | HX711 |
| Microcontroller | STM32F030F4P6@32-bit ARM Cortex-M0 processor |
| I2C Communication Address | 0x26 |
| LED Indicator | SK6812 RGB programmable |
| Dedicated Button | For zero calibration and tare adjustment |
| Weighing Capacity | 5KG |
| Bottom Fixing Nut Specification | M3 |
| Product Dimensions | 40 x 24 x 18mm |
| Package Dimensions | 136 x 92 x 24mm |
| Product Weight | 15.3g |
| Gross Weight | 22g |
Learn
Install the weighing plate onto the Mini Scales Unit for weighing.
Schematics
PinMap
Unit Mini Scales
| HY2.0-4P | Black | Red | Yellow | White |
|---|---|---|---|---|
| PORT.A | GND | 5V | SDA | SCL |
SK6812, Button
| STM32 | PB1 | PA7 |
|---|---|---|
| SK6812 | RGB | |
| BUTTON | KEY |
Datasheets
Softwares
Arduino
UiFlow1
UiFlow2
Internal Firmware
| Firmware Version | Update | Protocol |
|---|---|---|
| v3 | First Release Version | Unit Mini Scales I2C Protocol v3 |
| v4 | Removed the absolute value restriction on ADC variation values to enable displaying negative weight measurements. | Protocol same with v3 |
Protocol
Video
- Unit-MiniScales Function Demonstration and Introduction