If you are planning on using load sensors you will need to obtain or
purchase four units. We recommend our Combinator Board to make it easy
to turn the four strain gauges into a wheatstone bridge type load cell.
(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
• Installing the Arduino IDE
• How to Power Your Project
• Battery Technologies
• How to Solder
Load Cell Set Up
A selection of different load cells
Depending on the type of load cell you are using, the configuration of how it
should be hooked up to plates or surfaces will change. Below are a few
different types of setups.
Load Cell - 10kg, Straight
Bar (TAL220)
SEN-13329
Load Cell - 10kg, Wide Bar
(TAL201)
SEN-13330
1
1. [Strain gauges are two wired organized metal foil or wires that are set up in such a way that the resistance changes
when it is compressed or stretched. When a strain gauge is placed on something (usually metallic in nature) its
resistance changes based on the stress experienced by that something. When a single strain gauge is hooked up to a
metallic cell, we are calling that a load sensors, which have three output wires. Load cells usually has four strain gauges
hooked up in a wheatstone bridge formation, which have four output wires. For more information on load cells, strain
gauges, and wheatstone bridges see our tutorial.]
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