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SparkFun Load Cell Amplifier - HX711

SparkFun Load Cell Amplifier - HX711
SparkFun Load Cell Amplifier - HX711
SparkFun Load Cell Amplifier - HX711
SparkFun Load Cell Amplifier - HX711
SparkFun Load Cell Amplifier - HX711
SparkFun Load Cell Amplifier - HX711
SparkFun Load Cell Amplifier - HX711
€ 11.95
Incl. 21% VAT
Ex Tax: € 9.88
16 piece(s) directly available from stock.
Ordered before 17:00h, shipped today.
QtyDiscount
10 or more3%€ 11.59 Ea.
50 or more6%€ 11.23 Ea.

Description

The SparkFun Load Cell Amplifier is a small breakout board for the HX711 IC that allows you to easily read load cells to measure weight. By connecting the amplifier to your microcontroller you will be able to read the changes in the resistance of the load cell, and with some calibration you’ll be able to get very accurate weight measurements. This can be handy for creating your own industrial scale, process control or simple presence detection.

This version of the SparkFun Load Cell Amplifier features a few changes that you specifically asked for! The analog and digital supply are separated, as well as added a 3.3uH inductor and a 0.1uF filter capacitor for digital supply.

The HX711 uses a two-wire interface (Clock and Data) for communication. Any microcontroller’s GPIO pins should work, and numerous libraries have been written, making it easy to read data from the HX711. Check the hookup guide on the documentation tab for more information.

Load cells use a four-wire Wheatstone bridge configuration to connect to the HX711. These are commonly colored RED, BLK, WHT, GRN and YLW. Each color corresponds to the conventional color coding of load cells:

  • Red (Excitation+ or VCC)
  • Black (Excitation- or GND)
  • White (Amplifier+, Signal+ or Output+)
  • Green (A-, S- or O-)
  • Yellow (Shield)

The YLW pin acts as an optional input that is not hooked up to the strain gauge but is utilized to ground and shield against outside EMI (electromagnetic interference). Please keep in mind that some load cells might have slight variations in color coding.

Note: Special thanks to Bodge for supplying the Library for the HX711!

Specifications

General
ModelSF-SEN-13879
BrandSparkFun Electronics
EAN845156007615
MPNSEN-13879

Documentation

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Fast shipping
Orders placed before 17:00h (Mon-Fri) are shipped the same day.
Money back guarantee
Not satisfied? With us you have a 30-day return period.
Worldwide shipping
We ship to almost anywere in the world using UPS.