HX711 with a Four Wire Load Cell and Arduino | Step by Step Guide.

[@SonyaVoloboi]

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

[@defbat7908]

Lmao same shit rnow I'm also doing capstone

[@MalachiBurke]

I'm a 30 year software engineer, and this is a very good video. Nice and clear. Well done!

[@СергейНавалихин-д6к]

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.

[@civismesecret]

Good approach. Is your project successful now?

[@wasanthawijayaratna]

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...

[@greengallop123]

Can't believe you ask the viewers to turn on subtitles! Excellent work!

[@IndrekL]

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.

[@greengallop123]

@@IndrekL keep up the great work!

[@francoismacquaire6397]

Une video toujours d'actualité que je transfère à mes étudiants pour un projet scientifique. Merci.

[@sunishsuresh4073]

Loved the in-depth explanation... keep doing these work

[@IndrekL]

Thanks!

[@jesusalpizar4828]

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. 👍

[@IndrekL]

Thanks!

[@stonesvideos]

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 :-)

[@clobel55]

Finally someone whose English I can understand. Well done.

[@billnage]

Great video regarding calibration of HX711. You covered quite a few "gotchas". Many Thanks!

[@IndrekL]

Thanks!

[@ericmarcelo8976]

Good video. I suggest, however, that you use a more solid base, such as aluminum or even steel, instead of plastic. The flexing and bending of the plastic will cause inaccuracies in weighing. For demo purposes, your setup is fine but if you don't mention that a solid base is required, anyone who might still be learning will not get that important piece of knowledge.

[@oadka]

Sir this was a very good video. Short and sweet. Its better than the other videos from even established channels on youtube.

[@IndrekL]

Thanks!

[@stefannetzer355]

Great explanation of the HX711, Loadcell and Arduino Code. I linked this one to my rain gauge, where I used exactly this combination.

[@frogger8859]

Thank you so much, you saved me in my engineering class!

[@net576354]

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

[@ProfessorOzone]

You gave enough information for a fairly inexperienced person to actually make this project. Thank you. Very well done.

[@IndrekL]

Thank you very much!

[@noahcwb]

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!

[@balajimk]

That's a brilliant demo, Mate! Thanks.

[@thomascruickshank7407]

Truly an amazing video! Engineers will be using this as a reference for years, thank you!

[@gungod6942]

This video helps my project of BE Thesis. Thank sir.

[@CalebMuema123]

Love this, you have gained a new subscriber today!!!

[@markpostlethwaite9672]

Brilliant! I’m new to arduino and these videos are a great help! I’m looking forward to your up and coming projects.

[@IndrekL]

Awesome, thank you!

[@MohamedAfzal]

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??

[@bigfellamal]

Can you build a 4 cell wheatsone bridge for 4 wire load cells?

[@fnoo2585]

Thank you for this very useful video through which I have completed the idea of how to design my project in my head.😍💙💙

[@shubhagarwal8915]

Plz tell how to connect the lcd using bread board and make this into a fully functional scale

[@PedroVelarde-f1x]

Hello, first of all, thanks for the tutorial. It is amazing. I want to measure the force in the upward direction. So that the obkect pushes up and there is "insertion force" measurement. I want to know if it would be possible when useing a 4 wire Load sensor of 100g capacity, will it work? How can I obtain the rated output, the sensitivity, accuracy and accuracy? Thanks a lot

[@niladrichowdhury8106]

Great job please continue with these amazing projects.

[@wesley191095]

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?

[@IndrekL]

It would be easiest to use one HX711 module per four-wire load cell.

[@kalaanakal1725]

@@IndrekL Hello sir when i run the program in terminal it shows load output value : nan . How to solve it

[@taranagnew436]

can you perform a (bixby routine or task) if a specified weight is applied to a chair?

[@civismesecret]

Yes

[@chali272]

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,

[@azree]

Hi @indrex, i already connected and followed everything until calibration and tare, but when i run the terminal, i got "Load_cell output val:nan"

[@aaryaagrawal5834]

I also facing the same issue. Have you solved this? If yes, then pls tell how to solve.

[@aidang7182]

@@aaryaagrawal5834 did you find a fix?

[@yelloroo]

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 ?

[@danieletotonelli4697]

Is it possible to do this with scales of 400 kg or more? what should be used as a base? I would like to make 4 of them to balance the weights of my car 😊 There is a video for arduino nano and lcd screen too?

[@lemeplaymuzic3128]

Can you make a GUI using microsoft visual studio in which it would receive the weight load applied on the load cell? I appreciate it if you do I step by step video on that. Thank you in advance

[@hasanderyal484]

Hi, i have a Capacitif Strain Gauge with 3pins. How can i analyse the output signal on Oscilloscope ? ( Is there any amplifier module which i can connect Gauge to Oscilloscope and see the signal ?) Thanks for comments in advance...

[@carmo77750]

Great video! How can I wire 3 load cells on the same arduino?

[@evinvural5032]

This is what i would like to know

[@julienvalentin8396]

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

[@Basherqueen]

WOW WOW WOW You are awesome, such a nice tutorial, I love it 👍👍👍

[@Liu_I_AM]

thx for this video ! It seems like it has a great deal of delay to guess the correct value...

[@starlights214]

Hello I have a small kitchen digital scale which when turned on -and with no weight to be measured- keep showing different random numbers even negative . And when I put any load it shows:O-Ld or a very high weight. I made sure that cables are connected .but I do not know how else can I do to repair the scale.

[@Werbard]

Здравствуйте! Спасибо за видео! Есть ли схема для подключения платформы на двух таких датчиках?

[@gulsumyesir6206]

Help !!! I can't receive stabile values. I checked my connection and wires. What can I do for this problem?

[@IndrekL]

It will never be stable. For me it was always fluctuating around +-10 grams. How much does it change for you?

[@jonathanelidramirezaranda5762]

@@IndrekL The same thing happens to me, isn't there any way to stabilize?

[@ErickDamianInfinity]

it goes up to 4-5kg with the same load cell and module

[@kristoferdressler8134]

The ADC and the amplifier are both noisy. You can oversample by taking several hundred, maybe 1,000 measurements, average them, then only display the average of the 1,000 measurements. That should stabilize it quite a bit.

[@shehzadulhaq1686]

Good work. Can you please tell me that how we can measure the tension or compression using beam load cell?

[@ahmadihsan]

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

[@ThuanDuong-pv3xu]

thank you for your 2:16 time i have repair my scale 200gr

[@v.suralta9831]

I was planning On making a smart BMI measurement using loadcell and ultrasonic My question is how to combine all codes? Should i modify and edit the read_x1_load_cell examples and add the codes of the ultrasonic?

[@civismesecret]

Yes you can

[@0451Deus]

The adafruit four wire load cell came with the world's thinnest wires. These things must be 32 AWG stranded, really cheap. So cheap that somehow one of the leads was totally cut off on one of the wires, and attempting to strip some insulation off would instantly cut through the strands of conductor. I tried a razor, then I tried just burning the insulation off but the exposure to the fire blackened the conductor and now the measurements are off. Would you recommend perhaps removing the glue that adheres the wires to the load cell and attaching my own wires to this thing?

[@manafalimahammed6767]

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.

[@nguyentram3958]

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!

[@mohammedhammouda2692]

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.

[@WNAZ-WALA]

Thanks for the explain about strain gauge load Cell.

[@BENAMORSafwen]

Is it possible to connect two load cells to the same HX711 amplifier? Can I excite the load cell in the opposite direction (reverse mounting)?

[@d.athegreat3947]

One word... Outstanding.

[@lifeishard798]

For me, the result is always "nan" when weighing. Does anyone know what I'm doing wrong?

[@IndrekL]

Hey! it is most likely some kind of wiring issue. Re-check all the wires and if possible try soldering the wires together.

[@ashwakshaik1197]

Circuit problem

[@NSALADIDEVIGAYATHRIMANI]

You better change the arduino board you are using..try with another Arduino..it will work out

[@urvish6649]

Same problem any solution?

[@deewansonicengineering]

@@urvish6649 check ur wiring.

[@mikephilmelendez]

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

[@SMRTSENS]

how I can increase the sensitivity of the weight measuring? is there any library that we can add to the programm?

[@gungod6942]

Dear sir, I would like to know how to setup the LCD( if it is fine, I would like to know using 12×6 LCD) with this scale step by step. Please reply to me.

[@rng11163]

Is there an example of it in any simulation circuit? Or I can do it in a simulation program

[@TheAnhPham-gz1dw]

Hello . I want to fix my electronic scale so that it can weigh heavy objects but be a little lighter. Can you give me some knowledge?

[@finex2754]

Hi I'm currenttly working on a project with this tool, and I was wondering if you could guive to me diameter in centimeters of the screws plz ?

[@coriddeval1815]

This the video I have been looking for, how when I type in load cell and arduino it took many informative videos to get here. They were great just missing the main ingredient which is showing me what it looks like to apply pressure in a testing kind of way before the hook up, as well as the explanation, and even hooking up the arduino as well as coding. Most of all the name of the amplifier/interface/translator board before the arduino. I did see some with an interface board then into a video USB hub?

[@vipinpachouri4766]

Nice and Informative Video: I want to measure the tension in a cable, can you kindly suggest some source from where I can start. Thank you in advance.

[@ahmetselim1166]

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.

[@jakejakezack]

This video was so helpful. Thank you for making it. Would talk about how to program the OLED display? Keep up the good work!

[@IndrekL]

Thanks! Maybe, in the future.

[@gocar7255]

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.

[@scientifiko4246]

Your way of explanation is really amazing. If I want to add 100kg or 200kg load cell what I need to do?

[@davelopez9161]

Thanks for the video but my measurements wander. I never have the same measurement twice. What should be done with the extra inputs (B+/B-) to the hx711?

[@davelopez9161]

I un-soldered the load cell wires from the hx711, twisted them together (blk/red and grn/wht), re-soldered them better and now it is working much more better. 😁😁

[@devendranama2728]

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.

[@eagonsiahaan9390]

This helps my project a lot thanks so much!

[@Samson.Boedefeld]

Awesome work! I‘m new to Arduino and you make it look easy. Thank you!

[@fatimafatima-oc7dz]

thank you so much please did you have software to read strain gauge ???

[@shivajib]

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.

[@zohairdilawar116]

Nice video , how to transfer the weight displayed to Google sheets can we also attach a barcode sensor and send both data to Google sheet

[@36_bellafransiska84]

I will program an Arduino Uno using a load cell with HX711. Initially, I place a 50-gram weight on the load cell, which has been calibrated with a float calibration factor of -1694.10, and the relay is off initially. The program will run in a loop 5 times, where in each iteration, the weight reduction should only be between 8-12 grams. If the reduction exceeds this range, the relay will turn on, and this process will continue for 5 iterations. Please help me

[@luanregisteobaldo2531]

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?

[@kaifitzsimons9582]

Could you use a micro bit instead of the arduino

[@stevensheldon9271]

Thank you, your video helped me set up my load cell!

[@junway9774]

how do you change the results of the serial monitor weighing into minutes

[@bhupendraaditya6960]

Thanks u cleared my doubt about pairs

[@davelopez9161]

Why is it that they never tell what size screws (3:35) are being used???

[@fusarifilippo]

@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! :)

[@Xepherrea]

Hi there, I have my set-up exactly as you have it and went through all the steps but after i enter my weight and save it to the EEPROM it just says Load_cell output val : nan. I have been trying a bunch of different libraries and code examples but nothing has been working thus far consistently.

[@IndrekL]

Hey! If you get 0 or Nan then it is most likely a wiring issue. Make sure that all the connections are secure. It would be best if you could solder the wires.

[@payalyerme6015]

Hey Xepherre Did your issue get solved even I am facing the same problem my connection seems perfect. I am getting "New calibration value has been set to: 0.00" and "Load_cell output val: NAN ", I am not getting where I am wrong. Can you help me out.

[@aidang7182]

@@payalyerme6015 Did u fix this cause I’m having the same thing

[@KOHSMR]

is the problem resolved? I also experienced the same thing@@payalyerme6015

[@hilaaml]

hey, can these steps also be applied to a 1kg load cell?

[@Tantacle._.]

do you have the part of the program concerning the lcd screen ?

[@Midoo2121]

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?

[@notkha]

Does this work with a ESP8266 (NodeMCU) ? The Weight im getting in the Serial Monitor are all wrong and they differ a lot even when there is nothing on the scale.

[@princesekgobela2702]

great videos....so is it possible to connect 4 of 1000kg using one HX711?

[@محترفالشرح-ك1ي]

How can I implement the calibrated value in my project ?! To make an LED turn on if 1kg is reached maybe !

[@nenobela]

you found a solution? having the same issue

[@Gupta.Shivani]

Hi, I am getting an error that wifi.h is not declared in HX711 library :( Please can anyone help me?

[@Xside84]

Thank you very much for your video. I would like to do something similar, but I need 4 load cells for it. Do you know how I have to connect this to the HX711? I despair at this task...

[@civismesecret]

Check the weight scale tutorial with 4 load cells not the kitchen scale one with only 1 load cell

[@r0xanna99]

Can you please tell me which resin did you use to print the base framework and tge weighing plate?

[@edumaba]

Thank you very much Sir. I am able to calibrate it successfully but when I upload the Read-1x-load-cell, the weight is not the same unless I press the block down. Please help me.

[@kenshin3544]

I know it's a little bit late but I write this for the people who will come across the same problem. Make sure you comment the correct line. If you use an arduino uno for example you have to comment line 45, not 43.

[@shoaibahmedsiddique]

@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.

[@neeruchaudhary2982]

Can we use this for measuring drill force??

[@sathvikbhai5409]

I want this particular code you used to detect the weight

[@sathvikbhai5409]

Plsssss give me as soon as possible

[@simba478]

Thank You. This was very helpful. It worked flawlessly.

[@IndrekL]

Thanks!

[@carlos.galhano]

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.

[@ericw46732]

I am new to the world of Audrino IDE. I am trying to build a scale using in-line load cells to a junction box to an amplifier to an Audrino Uno R3. I have a display hooked into the Audrino. I am looking to put fasteners onto the scale and convert the weight to PC count and have it show on the display. I am having problems on which libraries to load in the IDE and the proper coding to use to get the results that I seek. Any suggestions????

[@muhammadsyakirimanbinrosla6326]

How do you know that the first calibration already accurate and how do you continue with the second calibration? And does the platform affect the accuracy of the load cell reading? Thanks in advance!

[@IndrekL]

I guess to know if the calibration is accurate, you should try different know weights to see how accurate it is. The platform probably can affect the accuracy if the weight is not applied to the correct position and angle.