HX711 - amplifier for tensometers

Index: DNG-12479 EAN: 5904422319366

Operational amplifier is designed to handle strain beams. The system is supplied with the voltage from 2.6 V to 5.5 V, communicates via a two-wire bus: the data line and a clock line.

HX711 - amplifier for tensometers
€1.90
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Manufacturer: OEM

Description

Operational amplifier is designed to handle strain beams. The system is supplied with the voltage from 2.6 V to 5.5 V, communicates via a two-wire bus: the data line and a clock line.

 

Connection

The strain beams are supported through the so-called Wheatstone bridge, i.e. wires connected in the following way:

  • E+ (Excitation+)- positive excitation or VCC (power supply)
  • E- (Excitation-) - negative excitation or GND (ground)
  • A- / A+ -- positive strengthening, a positive signal or a positive output
  • B- / B+- the negative strengthening, the negative signal or a negative output

 

 

For communication with the microcontroller, e.g. Arduino, the system uses two lines: CLK and DAT.

 

Pin Description
VCC The supply voltage is from 2.6 V to 5.5 V.
DAT Data line of the communication bus.
CLK Clock line of the communication bus.
GND The ground of the system.

E+
E-

A-

A+

B-

B+

Line to connect the strain-gauge beam. The description is above the picture.

 

The product is compatible with Arduino

 

Specification

  • Supply voltage: 2.6 V to 5.5 V
  • Number of channels: 2
  • ADC converter: 24-bit
  • Preamplifier: low noise 32 / 64 / 128
  • Updated frequency: 10 Hz / 80 Hz
  • Pins:openingsfor goldpin connectors - 2.54 mm(strap included)
  • Operating temperature: -20 °C to 85 °C
  • Module dimensions: 33 x 20 mm

Test 3
Package width 8 cm
Package height 1 cm
Package depth 4 cm
Package weight 0.004 kg

Wojciech

02/24/21

Question: How do I switch the circuit to 80Hz mode?
Answer: In order to switch the circuit to the 80 Hz mode of operation, pin 15 "RATE" should be pulled up to logical 1 (circuit supply voltage).

Product reviews

HX711 - amplifier for tensometers

5/5

Average grade

4

Customers opinion
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and come from the post-purchase process.
Łukasz 03.10.2023 Confirmed purchase Translated review
Everything works as it should :) I recommend it
Grzegorz 06.03.2023 Confirmed purchase Translated review
qeigkr ler
Przemysław M. 10.05.2022 Confirmed purchase Translated review
In the testing phase, we'll see what it's worth
Andrzej 08.02.2023 Confirmed purchase

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