1000kg button load cell with display

Let's Make Robots Project Ideas
1

Hi, I am looking into setting up a project with this load cell https://uk.robotshop.com/products/1000kg-button-load-cell

But I am not sure what parts are compatible. I want to connect the load cell to an lcd display so i can see my readings. What would I need to do this?

Thanks

3

Hi @Salwayt91 and welcome to our forum!

So you would need something like this:
image

You need a main controller which you will program to read the load cell values and to send them to LCD display.

You can use Arduino UNO R3: https://www.robotshop.com/products/arduino-uno-r3-usb-microcontroller

To connect load cell to Arduino, you need an amplifier, for example this one: https://www.robotshop.com/products/hx711-load-cell-amplifier

Also, you need a LCD screen compatible with Arduino: https://www.robotshop.com/products/dfrobot-i2c-twi-lcd1602-module

In the end, you can find sample code here: Noob trying to make a Load Cell Sensor with LCD - #3 by Zoos_lol - Displays - Arduino Forum

I hope this helps.

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4

Thankyou that’s really helpful! And those parts will work with the load cell I linked? Also could I use a 5-12v battery to power it?

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5

Yes, the load cell should work in this configuration. Here are the pins of the load cell:
image

If you want to power Arduino from a battery, this is a good approach: https://www.instructables.com/Powering-Arduino-with-a-Battery/

Feel free to ask anything else.

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6

Thanks a lot :+1:

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7

You are welcome.

Let us know if your project works in the end.

8

Hi igor,

I have received the parts you suggested and everything looks ok. I’m just having some trouble figuring out what kind of wires I need and connectors. For example the hx711 amplifier has holes for the wires to go into. Would they need soldering or is there some sort of pin connector I can buy to attach the wires?

Thanks for all your help!

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9

Hi @Salwayt91 ,

I think both options are possible, but I prefer using connector.

See here how Sparkfun did connection of the load cell to this board: Load Cell Amplifier HX711 Breakout Hookup Guide - SparkFun Learn

10

Thanks a lot :+1:

1 Like
11

You are welcome.