Linked Questions
10 questions linked to/from 3-wire load cells and wheatstone bridges from a bathroom scale
5
votes
1
answer
801
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Difficulties reverse engineering a digital bathroom scale
I apologize if this has been discussed elsewhere and for the length of the post. This is a group project and we plan to take the weight value from the scale and send it via a WiFi connection to ...
1
vote
1
answer
1k
views
Using 8 half-bridge load cells together
In my Arduino project, I want to combine 8 half-bridge load cells (each has 3 wires: red, black, and white) because I will be weighing irregularly shaped objects and 4 points of contact may not be ...
6
votes
2
answers
23k
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Connect HX711 to a three wire load cell
I have the following load cells:
I'm using the following HX711 amplifier
Every guide i can find on the internet describes how to connect a load cell with four wires to the amplifier. How can i ...
1
vote
3
answers
2k
views
Four Half Bridge Load Sensors outputs highly fluctuating values
I have four half bridge strain gauge load sensors connected in a wheat-stone bridge configuration. I have fed the output of the sensors to the ADC (ADS1230) which is a 20 bit analog to digital ...
5
votes
1
answer
17k
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Arduino Leonardo + 3 wire Load Cells + INA125P – Analog Signal Bounce / Noise
I actually have a software background so my experience in electrical engineering is somewhat lacking. Never the less, I have given my first Arduino project a go and for the most part I am quite happy. ...
2
votes
0
answers
135
views
Load cells for 4 legged beer fermenter [duplicate]
I'm a homebrewer. I use 5, 4 legged 200 liter tanks to ferment the beer.
I would love to be able to weigh the tanks and have the signal on my PLC to see how much I have in the tanks.
Each tank ...
1
vote
2
answers
3k
views
How to hook up a load cell to an Instrumentation amplifier correctly
I am trying to get load cells connected to an instrumentation amplifier. The load-cells I have are extremely similar to the ones here https://www.sparkfun.com/products/10245. They have 3 wires coming ...
2
votes
1
answer
10k
views
Hacking a four load sensor based personal weighing scale
I am trying to hack a personal weighing scale.I had taken help of this tutorial but the language used in this is not very easy to understand due to the non-standard naming used for load sensor wires, ...
3
votes
4
answers
6k
views
Combination of four half-bridge load cells
I have a kitchen weight scale containing four half-bridge load cells, each cell associated to one foot of the scale.
I want to hack it to use it as a pressure sensor and link it to an Arduino ...
12
votes
4
answers
17k
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Digital bathroom scale circuit - how it works?
I'd like to understand how the digital bathroom scales work. I was able to gather that there are four three-wire load cells connected into the Wheatstone bridge as suggested below. The load cells have ...