HX711 with a Four Wire Load Cell and Arduino | Step by Step Guide.
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- Опубликовано: 8 июл 2024
- In this video, I explain how to connect a four-wire load cell to the HX711 amplifier module and how to read the weight value with an Arduino.
Diagrams and pictures:
circuitjournal.com/four-wire-...
Github page of the "HX711_ADC" library:
github.com/olkal/HX711_ADC
3D printed parts:
www.thingiverse.com/thing:460...
Buy from Amazon:
Crimping tool (I am using this one): amzn.to/3jaDwci
DuPont connector set: amzn.to/3rCPT8e
Load Cell with HX711: amzn.to/2zwTcG1
Genuine Arduino Uno: amzn.to/2ZXfdsr
Male to male jumper wires: amzn.to/2TX0GZP
(As an Amazon Associate I earn from qualifying purchases)
Buy from Aliexpress:
Crimping Tool: s.click.aliexpress.com/e/_dVT...
DuPont Connector Set: s.click.aliexpress.com/e/_dUQ...
Load Cell with HX711 Module: s.click.aliexpress.com/e/_9GL349
Arduino Uno Compatible Board: s.click.aliexpress.com/e/_AVaoKb
Set of Jumper Wires: s.click.aliexpress.com/e/cnhvUw2c
Disclosure: Bear in mind that some of the links in this post are affiliate links and if you go through them to make a purchase I will earn a commission. Keep in mind that I link these companies and their products because of their quality and not because of the commission I receive from your purchases. The decision is yours, and whether or not you decide to buy something is completely up to you.
Timecodes:
00:00 Intro
00:20 Demo
00:45 Different load cells
01:44 How does the load cell work?
02:39 The HX11 amplifier module
02:50 Assembly
05:03 Verifying the wires
06:16 Connecting the load cell to the amplifier module
06:50 Connecting the HX711 module to Arduino
07:19 Downloading the HX711_ADC Library
07:42 Arduino code
08:14 Calibrating the load cell
09:35 Testing the load cell with various objects
10:15 End
Music from RUclips audio library. 
Наука
Indrek, this video did take me 5 hours to execute -- but at the end of it, I came out victorious. You are forever going to be my load cell king. I am indebted and will spend the remainder of my mortal days finding ways to honor and love your presence. Thank you. - ** Capstone Team
Great explanation of the HX711, Loadcell and Arduino Code. I linked this one to my rain gauge, where I used exactly this combination.
Great job please continue with these amazing projects.
I'm a 30 year software engineer, and this is a very good video. Nice and clear. Well done!
Loved the in-depth explanation... keep doing these work
Thanks!
Brilliant! I’m new to arduino and these videos are a great help! I’m looking forward to your up and coming projects.
Awesome, thank you!
Finally someone whose English I can understand. Well done.
Awesome work! I‘m new to Arduino and you make it look easy. Thank you!
You gave enough information for a fairly inexperienced person to actually make this project. Thank you. Very well done.
Thank you very much!
thanks! for the video! i plan on using three load cells to make sim racing pedals for my pc and this helps me to feel more comfortable on working on it!
Great video regarding calibration of HX711. You covered quite a few "gotchas". Many Thanks!
Thanks!
Great work! Your detailed step by step explanation was so useful for my 11 years old daughter on calibrating her weight sensors for her school engineering fair project. Thanks a lot and keep up with the great work. 👍
Thanks!
I totally agree and would like to say "thank you", too. I came across this video while looking for "ardunio with loadcell" and along the instructions on how to wire I appreciate the explanaition of the loadcell / wheatstone bridge. Great work and good to see people not just sharing but also explaining their knowledge :-)
Sir this was a very good video. Short and sweet. Its better than the other videos from even established channels on youtube.
Thanks!
More than 5 months I was trying to implement this, was not success, may be I'm so dumb :), finally I found something works, thanks, now I can continue my project...
Une video toujours d'actualité que je transfère à mes étudiants pour un projet scientifique. Merci.
Dear Indrek Luuk, I am very grateful for the sketch and library you created for Arduino. I worked with it for three evenings and, using the Frankenstein method, increased the number of HX711 sensors to seven, and also added PLX DAQ, which now allows me to create weight control tables and graphs. My plans are also to remake the tare system via EEPROM to save the data of the last weight measurement, and not the tare. since in my botanical experiments I use strain gauges to determine the weight of hives during the flight of bees, and when the Arduino is rebooted, the data is reset to 0. And a hive with bees, nectar and honey weighs from 50 to 150 kg and it’s hard to pull it every time. Thank you for the program and interesting blog.
Good approach. Is your project successful now?
Thank you, your video helped me set up my load cell!
It's well explained.
Thank you
This video helps my project of BE Thesis. Thank sir.
Thank You. This was very helpful. It worked flawlessly.
Thanks!
wooow, that's gonna be useful, thanks!
Amazing work man!
Wow this really helped! Thank you!
This helps my project a lot thanks so much!
thank you ! very informative description.
WOW WOW WOW You are awesome, such a nice tutorial, I love it 👍👍👍
That was an excellent tutorial! Thanks a lot.
That's a brilliant demo, Mate! Thanks.
this video is so helpful! thank you so much sir
Thanx you for making great tutorials
Can't believe you ask the viewers to turn on subtitles! Excellent work!
Thanks! I have received some comments that some people are struggling to follow my accent. I guess it depends on the listener's mother tongue.
@@IndrekL keep up the great work!
thank sir, you help me a lot!
This is a very informative video
Very detailed and useful video, nice job.
Thank you very much!
Thanks dude, you saved my live :D
One word... Outstanding.
Nice! Enjoyed it alot
always awesome
Truly an amazing video! Engineers will be using this as a reference for years, thank you!
Thank you for this very useful video through which I have completed the idea of how to design my project in my head.😍💙💙
This video was so helpful. Thank you for making it. Would talk about how to program the OLED display? Keep up the good work!
Thanks! Maybe, in the future.
thank you for this great work
Hello. First off I wanted to say that your videos are very very informative. I ordered the 20 g load cell from the link below, and was excited to get started with this project of building a small scale. However, I must say that the quality of the load cell doesn't seem to be up to par. I couldn't get an initial resistance reading just from the wiring. And I was wondering if there was something I was doing wrong
You earned a sub ♥️♥️
Thanks!
This vid is awesome and so are you!
Thanks u cleared my doubt about pairs
Nice video, thank you!
I love you bro, till this day!
Thank you so much, very useful video
Creative video, thanks :)
Thank You for sharing!
Hi i want to ask something. Does the weight rating also reflect the accuracy or anything else on this module? Or is it just the max weight we can measure using it? Thanks
excellent project. I set up a scale using the same load cell you used, with hx711 and esp32. The weight I use to calibrate the scale measures correctly, but the other weights are out and the greater the weight, the lower the measured value. Can you help me?
Do you know how I would code the arduino to weigh something and when it's lower than the intended weight, it uses a speaker to play a tone?
@Indrek , is it possible to get correct readings within 1 seconds of time? I saw in many videos that it takes areound 2-2.5 sec to settle down and measure the load weight correctly.
Thanks for your detailed explanations. Very much appreciated.
By the way, I am looking for a detailed tutorial on how to make a "smart gas scale" using 3-4 load cells and Arduino together with an LDC screen and some sensors... Could you be of any help for this?
Thanks in advance,
B.
thank you so much please did you have software to read strain gauge ???
Very informative.. I want to implement the load sensor for 0 to 1.5 kg. But the thing is load cell which you shows is very big in size. So do we have any alternatives in smaller size.
Thanks in advanced for your introducing the application of the hx711 .But in my arduino serial output shows my measurement still increasing non stop.Can you help me thanks
great video bro
so good, thank you so much
thank you for your 2:16 time i have repair my scale 200gr
Good work. Can you please tell me that how we can measure the tension or compression using beam load cell?
Hi Indrek, really nice tutorial. I was wondering if I would be able to use a second load cell and connect it to the B+ and B- pins of the Hx711? If so, how would this connection go? Thank you, keep up the good work.
Hey! Yes, it should be possible. You can connect it the same way as to the A+ and A-.
I read about the channel B a little and it seems that is not as sensitive as channel A.
And it seems that the HX711_ADC library doesn't support the channel B. Maybe there are other libraries for the HX711 module that do support it.
great explanation; cAtCHy intonation
Thanks for the detailed explanation. I need to measure a weight change with respect to time for my project work. Is it possible to make a weighing machine using Arduino which gives weight with the time simultaneously.
Great stuff
Hi Could you make a video where you make a center of gravity scale using the andruino and 4 load cells?
Your way of explanation is really amazing. If I want to add 100kg or 200kg load cell what I need to do?
guys I have a simple question does this work when it's not on the table or the surface for example if I use it in a nylon bag, does it show correct values? Thanks in advance.
Brilliant thank you
Hi , thanks for the great video
can i use it with more acquisitions rate load cells ? and do you have any recommendations for one that can get 10-50 Kg with more than 10Hz acquisition rate?
Great video! One question: Can I use this module with a 200 kilo load cell? Thank you
Great videos. Is there any limit on the load cell capacity that can work with HX711? E.g. can I use it with bulk bag scales like 5 ton load cells?
From my perspective, you may need a commercial AtoD converter since this one is only for experiment...
Very nice project. Please tell me how can get the parts that you fixed your load cell with them? I mean the two plastic parts. Thank you.
Thank you for the nice tutorial that helped me. I still have a problem: the values read by the system are increasing continuously even without any weight on it. I checked the wires of the load cell. Any idea ?
how I can increase the sensitivity of the weight measuring? is there any library that we can add to the programm?
Thanks for the video. I was able to setup the load cell just as you explain and it works. My project involves continuously measuring the weight of a roll of filament on a set of rollers. It seems I'm running in to an issue called "creep" where the weight measurement changes (increases) for a while until the load cell stops "bending". Have you heard of this and do you know of any strategy to compensate for it? Because of the continuous measurement requirement I'm also running into changes/error due to temperature variation. The funny thing is that the eSun eBox filament dryer does both of this things but I have not read about anyone running into either of this issue. I suspect that they must be compensating for both errors mathematically.
hello , i hope you'll see this , i'm struggling with my project and i need some help. could you give me your email or any social media id ? Thank you in advance
Excellent 😎
Thank you!
Can we use this for measuring drill force??
What software you use for the schematic of load cell arduino and hx711 module?
Very good vídeo, I was searching for this all the week. Can you tell me if there os a way to get the measurment more slowly? And how to connect the display to a Arduino Uno R3.
Can you build a 4 cell wheatsone bridge for 4 wire load cells?
Hi! Thankyou so much for your video. I would ask you that is it possiple to use 4wires loadcell of 5tons capacity, even it is 4 wires loadcell but it is said that the exicitation voltage is 10V DC, but the operation voltage of HX711 is just 5V? And how much that the HX711 amplifies the voltge of the loadcell? Thankyou so much!
Hi; great tutorial, can you please tell me if this will work with the Arduino Nano?
how many of this can be connected to one controller? i like to connect like 10 of this to get info on punches and kicks,
Can you please tell me which resin did you use to print the base framework and tge weighing plate?
Hello. Thank you for the video. I am wondering if this load cell can measure weights at an angle? Meaning does it have a y component for example? or at least can the y component be found? Even if by measuring the mV/V using a multimeter. I have exposed the strain gauge and it looks like there are two strain gauges but I am not sure.
Hello from Brazil. Great job! This video is the best I have watched about load cells. But how could I connect two or more Four Wire Load Cell?
It would be easiest to use one HX711 module per four-wire load cell.
@@IndrekL Hello sir when i run the program in terminal it shows load output value : nan . How to solve it
very good video ! Does anyone know where the reference of the elements is at the very end when they connect a screen? (with the arduino NANO) I am interested in the miniaturized version
nice work. but i have question . while arduino reading the values the power resets and it will not show the existing weight on load cell. any suggestions??
@Indrek i have a mavin n151 load cell, i have 5 cables that came out of it. What is the purpose of the 5th cable?
thanks in advice if you can help me! :)
hello dear Indrek. can i ask you a question please. i´m designing a force plate(the aim is to analyze jump force between feets and plate surface) but i realized that i two types of load cell. One of them is tighted with screws for both sides and other type just for one side like load cell for bathroom scales. Do you know wich configuration is better to read alternating force. thanks for your help. grettings
Hey! It's hard to tell. It would be better to experiment with them.
Do I understand correctly that you want to measure both feet separately at the moment of jumping and then compare which one is stronger?
The jump force is quite momentary. The laod cells measure by averaging measurements over time. You probably can reduce the time of the measurement but I don't know how accurate will it be. You only know if you test different load cells.
how do i use this to find impact load
Heyy great work. I need to use a load cell for a project, Will it work if i put it upside down. I need to push upwards onto the cell.
Hi, thanks for the video! For my part I have to measure the variable resistance of a single deformation sensor. Can I still use this module knowing that it has 4 inputs specific to a load cell?
I guess you can if you add three resistors to form a Wheatstone bridge.
many thanks
I have a project where im only allowed tu use op amp to increase the voltage change from the load cell. Can you explain what i need to do to convert the output voltage from the op amp into weight.
I connect the output voltage to the A0 to read the voltage
Thank you
очень хорошее обьяснение спасибо мужик
Very very nice