This instructable describes how to make a weighing scale using readily available off the shelf parts materials needed.
Load cell bathroom scale.
Next we will explore calibration and test the load cell as a weighing scale.
The load cell must also be accurately wired to the hx711 to ensure that the appropriate strain gauge leads are used to approximate the weight given by the load cell.
This gives me two opposing wheatstones.
Endgroup dave tweed mar 7 14 at 16 45.
Arduino this design uses a standard arduino uno other arduino versions or clones should work also hx711 on breakout boa.
The total weight on a bathroom scale is the sum of the weights on each support which are not necessarily equal and four supports are used for maximum stability when stepping on or off the scale.
50kg load cell this load sensor sometimes called a strain gauge is the same one found in digital bathroom scales you know the ones you use in january for your new year s resolutions and then forget about a month later.
Its key components consist of a strain gauge a device used to measure the strain of an object and load cell sensor an electronic device used.
An update to the previous 50kg bathroom scale load cells tutorial.
Three wire load sensors from a bathroom scale.
Arduino bathroom scale with 50 kg load cells and hx711 amplifier.
Digital scales work with the use of a strain gauge load cell.
Load cell usage load cell using 3 wire load sensor https.
I ve wired them as if they were each 1 2 wheatstone bridge using the red wires as the signal with back vss white vdd 3 3v.