The M5Stack Scales Kit is a high precision low-cost weighing kit. This digital Scales kit is consist of four pieces of half-bridge resistive strain gauges, with a total weighing range of 200kgs. It is equipped with a 24-bit A/D converter chip HX711, specially designed for the high precision electronic scale.
The built-in low-noise programmable amplifier supports 32/64/128 times gain adjustment. With the help of an M5Stack core for programming, you can create IoT based weighing scale in just a few minutes!
Note: The Scale Kit will need a cover plate to work with, and the size of the cover plate should not exceed 50cm on one side.
Features
- Total weighing range of 200kgs
- HX711:
- High precision 24bit ADC
- Programmable gain amplification 32, 64 and 128
- 10SPS output data rate
- Half-bridge resistive strain gauge.
- Output sensitivity: 1.0±0.1mV/V
- Non-linearity: 0.3% F.S
- Integrated Accuracy: 0.3%F.S
- Zero output: ±0.3mv/V
- Difference between upper and lower impedance of each strain gauge: 0.8Ω
- Output (in) impedance: 1000±5Ω
- Development platform:
Package Contents
- 4x Half-bridge resistive strain gauge
- 1x Weight Unit
- 1x HY2.0-4P Cable (20cm)
- 4x Double-sided adhesive paper (39 * 20 * 0.8mm)
- 4x Double-sided adhesive paper (39 * 12 * 0.8mm)
Specifications
| Specifications |
Parameters |
| HX711 |
Output Sensitivity: High Precision 24bit ADC |
| Programmable Gain Amplification 32, 64, 128 |
| 10SPS Output Data Rate |
Half-Bridge Resistance
Strain Gauge |
Output Sensitivity: 1.0±0.1mV/V |
| Nonlinearity: 0.3%FS |
| Comprehensive Accuracy: 0.3%FS |
| Zero Output: ±0.3mv/V |
| Difference between the upper and lower impedance of the strain gauge: 0.8Ω |
| Output (input) impedance: 1000±5Ω |
| Gross Weight |
92.5g |
| Net Weight |
126.3g |
| Packing Size |
105mm x 65mm x 40mm |
Resources
Pin Mapping
| M5CORE - PORT B |
G36 |
G26 |
5V |
GND |
| WEIGHT UNIT |
DATA Pin (DAT) |
CLOCK Pin (CLK) |
VCC |
GND |
