Gravity HX711 Load Cell / Wheatstone Bridge Interface

DFRobotSKU: RB-Dfr-519
Manufacturer #: SEN0160

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Sale price $16.95

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Description

Size

  • 33 x 38 mm

PDF file

ZIP File

24-Bit Analog-to-Digital Converter for Weight Scales (HX711)

  • Two selectable differential input channels
  • On-chip active low noise PGA with selectable gain of 32,64 and 128
  • On-chip power supply regulator for load-cell and ADC analog power supply
  • On-chip oscillator requiring no external component with optional external crystal
  • On-chip power-on-rest Simple digital control and serial interface: pin-driven controls, no programming needed
  • Selectable 10SPS or 80SPS output data rate
  • Simultaneous 50 and 60Hz supply rejection
  • Supply Voltage: 2.6 V~5.5 V
  • Current: 1.6 mA
  • Working temperature: -40~85°C
  • 16 pin SOP-16 package

Weight Sensor Module

  • Range: 1kg
  • Excitation voltage: 5-15V
  • Synthetical error: 1 per thousand cent of full scale
  • Zero shift: 0.05/0.03(30min) %F.S
  • Zero temperature shift: 0.05/0.03 %F.S/10°C
  • Zero output: ±0.1mV/V 
  • Input impedance: 1055±15 Ω
  • Output impedance: 1000±5 Ω
  • Output: Analog output
  • Output: serial packets (2 pins required)

Customer Reviews

Based on 2 reviews
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B
B
Perfect for a easy to use load cell

Worked as expected. There's a lot of information on the net for the HX711 if more documentation is needed.

B
Bill
Does what it is suppose to, documentation could be improved...

When one orders a product that states it is compatible with Ardiono, one expect the wiring diagram to show to connect it up to a standard Ardiono Uno. Indeed this is compatible, but the pins on the provided cable are in the wrong order for a tinkerkit board, not at all useful for directly plugging into the Ardiono Uno, and the pins numbers where it should connect is not shown. Fortunately, the pin numbers are commented in the example code, so I was able to still wire this up. The next issue is diagram shows a different colors and ordering of the wires. I spent a long time trying to get the bridge board to work, before I realized I should just ignore the diagram, use the wire colors in the photo, and ignore the wire order. In the end it works. And it works very well. Only I could have ordered these parts from other vendors cheaper, but I ordered from Robot shop because it looked like a convenient package, and faster shipping. I may not have gotten the convenience I was expecting, but the shipping was really fast!

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