Advertisement
Quick Links
Load Cell Amplifier HX711 Breakout Hookup
Guide
Getting Started
The HX711 load cell amplifier is used to get measurable data out from a
load cell and strain gauge. This Hookup Guide will show you how to get
started with this amplifier using some of the various load cells we carry at
SparkFun.
What You Will Need:
For this simple hook up guide we will just be hooking up a load cell with the
HX711 amplifier, and showing how you would hook up four load sensors
with a combinator board and the HX711 amplifier. To follow along, you'll
need:
• SparkFun Load Cell Amplifier - HX711
• Any Strain Gauge Based Load Cell:
Load Cell - 200kg, Disc
(TAS606)
SEN- 13332
Load Cell - 50kg, Disc
(TAS606)
SE N-1 3331
Page 1 of 10
Advertisement
Subscribe to Our Youtube Channel
Related Manuals for sparkfun HX711
Summary of Contents for sparkfun HX711
- Page 1 Guide Getting Started The HX711 load cell amplifier is used to get measurable data out from a load cell and strain gauge. This Hookup Guide will show you how to get started with this amplifier using some of the various load cells we carry at SparkFun.
-
Page 2: Suggested Reading
(Single strain gauge load cells only have three wires instead of four.) Suggested Reading If you aren’t familiar with the following concepts, we recommend reviewing them before beginning to work with the HX711 Load Cell Amplifier Board. • Load Cell Basics • Getting Started with Load Cells •... - Page 3 Page 3 of 10 Bar load cell between a two plate configuration S load cell configuration Possible four disc load cell configuration in something like a bathroom scale Bar strain gauge based load cells Usually with larger, non-push button bar load cells you will want to hook up the load cell between two plates in a “Z”...
-
Page 4: Hardware Hookup
Make sure to read the datasheet for the load cell you are using and get the correct screws to fit into it. • Note: If you are hooking together four of the SparkFun Load Sensors using the Combinator board, you should position the four load sensors equidistant from each other, just like the bathroom scales shown in this tutorial. - Page 5 Page 5 of 10 The HX711 Load Cell Amplifier accepts five wires from the load cell. These pins are labeled with colors; RED, BLK, WHT, GRN, and YLW. These colors correspond to the conventional color coding of load cells, where red,...
- Page 6 If the readings from the HX711 are opposite of what you are expect (for example the values decrease as you increase weight) simply reverse the O+/O- wires.
- Page 7 Page 7 of 10 The combinator board also has room for an 8 pin RJ45 socket, which can be used to connect your project via Ethernet cables for long distance applications. Another nice thing about our combinator board is that most home scales use four single strain gauge load sensors, so this is a handy board for hacking your own scales at home! Hacked home scale’s four load sensors hooked up to our combinator board...
- Page 8 To hook up the combinator board to the HX711 match the RED, BLK, WHT, and GRN pins Once you have the combinator board successfully soldered to the twelve wires, you can now connect it to the HX711 amplifier board via the 4 standard load cell wires.
- Page 9 Arduino pin 2 > HX711 CLK 3 > DAT 5V > VCC GND > GND The HX711 board can be powered from 2.7V to 5V so the Ardu To program your Arduino from your browser, please use Google Chrome (http://www.google.com/chrome/)/Chromium #include "HX711.h"...
- Page 10 Want to know more? Check out this tutorial if you haven’t already: Getting Started with Load Cells J UNE 11 , 2015 A tutorial defining what a load cell is and how to use one. Need even more? Check out this awesome article wheatstone bridges and load cell types. https://learn.sparkfun.com/tutorials/load-cell-amplifier-hx711-breakout-hookup-guide 9/9/2016...
Need help?
Do you have a question about the HX711 and is the answer not in the manual?
Questions and answers