This straight bar load cell (sometimes called a strain gauge) can translate up to 10kg of pressure (force) into an electrical signal. Each load cell is able to measure the electrical resistance that changes in response to, and proportional of, the strain (e.g. pressure or force) applied to the bar. With this gauge you will be able to tell just how heavy an object is, if an object’s weight changes over time, or if you simply need to sense the presence of an object by measuring strain or load applied to a surface.
Each straight bar load cell is made from an aluminum-alloy and is capable of reading a capacity of 10kg. These load cells have four strain gauges that are hooked up in a wheatstone bridge formation. The color code on the wiring is as follows: red = E+, green = O+, black = E-, and white = O-. Additionally, these load cells offer an IP66 protection rating and feature two M4 and two M5 sized through-holes for mounting purposes.
This skill defines how difficult the soldering is on a particular product. It might be a couple simple solder joints, or require special reflow tools.
Skill Level: Noob - Some basic soldering is required, but it is limited to a just a few pins, basic through-hole soldering, and couple (if any) polarized components. A basic soldering iron is all you should need.
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If it requires power, you need to know how much, what all the pins do, and how to hook it up. You may need to reference datasheets, schematics, and know the ins and outs of electronics.
Skill Level: Rookie - You may be required to know a bit more about the component, such as orientation, or how to hook it up, in addition to power requirements. You will need to understand polarized components.
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1 of 1 found this helpful:
I’m a beginner so it was a little challenging to get going, but for the most part I found resources on this website and it it working.
Works how it is supposed to, but the absurdly tiny gauge of these wires is an absolute nightmare. Maybe my problem is that I don’t want to solder these things into the hx711 quite yet.
I just wanted to make sure it works and get everything set up and calibrated, but I have no idea how to get a consistent connection between these wires and the holes on the hx711 (which is crucial to getting an accurate and consistent reading).
Maybe I can find something to clamp them into? Sparkfun, please save me! I love you and I know its not your fault! Its a tiny $7 load cell from china. I just want to get a solid connection for bread board if possible.
Thank you, if you read this sparkfun people.
Okay just realized you do say it requires a little bit of soldering. So I changed it back to five stars. I will give it a go. First real world project attempt.