Precision Scale Kit Featuring Adjustable Weight Units

Description

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Description

The Scales Kit is an electronic scale kit that uses four sets of half-bridge resistive strain gauges, with a total weighing capacity of up to 200kg. It is paired with a high-precision 24-bit A/D converter chip, the HX711, which features a built-in low-noise programmable amplifier supporting gain adjustments of 32, 64, and 128. When combined with the M5Stack main controller, it allows for the quick and easy construction of an IoT weighing application in just a few minutes.

Note The Scales Kit requires a weighing panel to function, and the side length of the panel should not exceed 50cm.

Features

• Total kit capacity: 200kg
• HX711:
  • High-precision 24-bit ADC
  • Programmable gain amplification: 32, 64, and 128
  • 10SPS output data rate
• Half-bridge resistive strain gauges:
  • Output sensitivity: 1.0±0.1mV/V
  • Non-linearity: 0.3%F.S
  • Comprehensive accuracy: 0.3%F.S
  • Zero-point output: ±0.3mV/V
  • Impedance difference between upper and lower strain gauges: 0.8Ω
  • Input/output impedance: 1000±5Ω

Includes

• 4 x Half-Bridge Resistance Strain Gauge
• 1 x Unit Weight
• 1 x HY2.0-4P Cable (20cm)
• 4 x Double-Sided Adhesive Tape (39 x 20 x 0.8mm)
• 4 x Double-Sided Adhesive Tape (39 x 12 x 0.8mm)
• 1 x Sensor Wiring Terminal

Applications

• Electronic scale design

Specifications

Specification	Parameters
HX711	Output sensitivity: High-precision 24-bit ADC Programmable gain amplification: 32, 64, 128 10SPS output data rate
Half-bridge strain gauges	Output sensitivity: 1.0±0.1mV/V Non-linearity: 0.3%F.S Comprehensive accuracy: 0.3%F.S Zero-point output: ±0.3mV/V Impedance difference: 0.8Ω Input/output impedance: 1000±5Ω
Product Weight	12.7g
Package Size	105.0 x 65.0 x 40.0mm
Gross Weight	133.6g

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