How To Receive Multiple Sensor Readings From Your ARDUINO Into Your MIT APP INVENTOR 2 APP

The following tutorial will show you how to receive multiple sensor readings from your arduino board into you MIT APP INVENTOR 2 APP.
If you are using more than one sensor with your Arduino project you have found that it is necessary to send that data and display it on your app. To do this you will need to send all the sensors data at one time, then split it apart and display it in the appropriate fields in your MIT APP INVENTOR 2 APP. THIS IS HOW YOU DO IT!!!!!!
In this tutorial we will be using a DHT-11 (DHT11) temperature and humidity sensor and a Photo resistor to send 3 different readings to the mit app inventor app. A DHT-22 (DHT-22) temp and humidity sensor can also be used and it is more accurate than the THD11.
Projects Website: thezhut.com/?page_id=395
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[@iceproz1549]

Thank you sooooo much!This example is awesome!I have incorporated it into a project that monitors the temperature of a refrigerator and now it monitors the door open / closed too!!!AWESOME!-Rob

[@akshatsharma264]

Thanks a lot, Z-HUT!! I was having a hard time finding out how to read values from multiple sensors, this tutorial cleared it all.

[@simplyInvent]

Great video! Thank you sooooo much for the video! This just completely saved my time and solved my problem...keep up your GREA WORK! GOD BLESS YOU!!! :)

[@LandMineFX]

This has been helpful. I just started working with App Inventor a couple of days ago, trying to get this ESP32-controlled guitar pedal to accept Bluetooth commands. I couldn't figure out how to get the pedal to communicate with the mobile device, but the part of your video that utilized global variables being input into a list helped me figure it out with my current setup. Thanks!

[@LeandroOliveira-ye1sw]

THANK YOU THIS PROJECT HELPED ME A LOT , THERE ARE NO VIDEOS LIKE THIS......

[@themelodicguy2022]

really great work I did so many research on this I didn't find much really it helps me a lot thank you!

[@QuintJer]

Thank you for sharing this excellent tutorial. Your sample code helped me get my bluetooth project going.

[@travisfort4700]

great job man! Thanks from Santa Catarina/Brazil

[@ashishmaurya6520]

It was very helpful. Thanks !

[@steinwurf64]

Habe ich nachgebaut. Sehr gute Arbeit! Hold on!

[@ravitejaaechan2455]

you are awesome, this video is so helpful!!

[@MichalMonday]

this combination, Arduino + bluetooth + Android + MIT app inventor gives so beautiful opportunities to make cool stuff when you get a grasp of it

[@camera_manu]

Wifi is best too, like esp8266

[@bodeaalx]

thank you so much for this tutorial

[@profytecnet]

Brilliant ! Thank you very much!

[@saitejasurampudi7572]

You are really great 😊 Learnt a lot from you

[@rakeshshetty1601]

thank you for your your informative video

[@joshc6699]

AWEsome. Thank you!

[@MPElectronique]

very instructive thank you1! :)

[@remyrai4155]

thanks for the great video. how about using through wifi connection? how about their design blocks in MIT ?

[@juara4778]

life saver dude thx from Brasil

[@juv4116]

How did you display the temperature in the white box since you have used a label for temp_label?Thank you

[@amittky8390]

Thanks did... You save my time

[@oreopls69]

hi, want to know what are your comments , on the code from seed grove temperature and humidity sensor library.

[@TechnoGDL]

Thanks, works perfect.

[@juv4116]

@Techno GDL did it really sends the value to the app without including a bluetooth library in the IDE?

[@Sherwoodroadster]

Hello, this clip made it for me. Now i can display my temp-sensors on the android device. But still a few problems i have to solve. by using your way i can´t compare the temperatur sended via bluetooth with a fixed value. the plan was to change colours by high temp or low temp. i also have a LCD Display connected whitch should be turned on / off if BT-connection is cut or by switch.

[@user-eq5sg6gm4m]

stunning speed)))

[@maharudrabade6774]

I just wanted to ask you where did you set the timer time in app?

[@pablocardenas843]

Hello, all I need to send are analog signals, such as your voltage divider with the LDR. What changes must be done to the arduino and MIT AppInventor code?

[@ultyimate]

how do i build the arduino setup? any videos on how you did it?

[@muhd_fakhrulh1415]

Hello sir. What power source did you use for arduino?

[@menyouh771]

Is it possible to use a FSR402 and see the pressure over the sensor with this?

[@JaafarMuhammad]

That's really informative. It helped me a lot creating a health monitor system. However, I think we have to add the splitter sign after each measurement line to work properly, it didn't work for me until I did it like this. Thanks a lot and best regards.

[@omeroztoprak869]

hi, Jaafar is creating a health monitoring system too. Is it possible to see your study thanks

[@nouzainahassan5623]

Can i get your help?

[@SB_Tommy]

what is the max refresh rate between the phone and the bluetooth unit? i want to make a speedometer for a race car and i want it to refresh fast enough.

[@skylarbjorn]

Hi! Would I be able to have this data report to a custom app?

[@shrikantgaddapati5968]

hey heloo, can i get ur help im making a glove mechanism in my project. for that im using flexsesnor, as sson as i bend the sesnor i should get the reading on the app through voice? can you help me out? pls

[@user-yq6rx8gb2h]

Thank you sooooo much

[@antonsteinkogler5854]

Hi, get the same error like mdafzal ahmed: list item too high Ain't got no App Inventor to change it DHT22 did NOT work. Had to change the library to DHT22.

[@jonathanr4242]

That's great. I'm using an MPU6050 and an HC-SRO4 ultrasonic module with your app.

[@AllenWAlkerKHR]

i am using mp6050 with an uv sensor but i have an error it says that my list is too large. Can you sen me you arduino code please

[@jonathanr4242]

@@AllenWAlkerKHR Sorry, I had a look for it, but I'm afraid that code is long gone. If you can put your code in a comment, I can see if I can compile it.

[@AllenWAlkerKHR]

@@jonathanr4242 the problem is that i have an error in my app. I have this message "List error: Attempt to get item number 1 of a list of length 0"

[@Arcturus.93]

Is there a video which explains retrieval of sensor readings through GSM instead of using bluetooth?

[@tejasmaryjane2174]

Awesome video quick question... I have the data loading perfectly now my only issue is trying to send a blue tooth client text to my arduino but get no response, do you have a solution to this issue?

[@abhijitrashinkar]

Excellent...

[@amrali3161]

Hello, could you tell me how to draw these results versus time on a real-time basis on app inventor?

[@explorersagnik8522]

thank u soooooooo much ...

[@abdulazizkhan1733]

Z-HUT....Great video. I have a small issue.....when I use your app, readings are fine but whe I create it.....the exact same block diagram, my readings are not coming. Kindly share .aia file if possible

[@rittol2365]

How does this connect without using the bt serial library, how did u make the device discoverable?

[@kauboi007]

i want 3 ir sensors input to the app is it in the same way or different?

[@xiuwensong4072]

hi, what if i use pressure sensor MPX5700AP?

[@dcpowered]

Could you please share the .aia file which is much simpler to import your app into MIT AI2?

[@rexsace7104]

Will this work if I use ESP8266 Module instead of the Bluetooth one?

[@Aliambarek]

good job could you please get the source file of app inventor (.aia)

[@kashifnazir4634]

which convertor is used?? model?

[@neytzhpz3971]

Hi can this tuto can help me to receive my arduino gps data to app inventor ? I really need help for my school projects i don't want do an other year at high school......

[@MikevomMars]

Nice - but how to go the other way round and send (and read) multiple values at once from Android to the Arduino?

[@myinfo7114]

Use an Arduino + cam and the photon-pixel coupling method. It is a new approach in science for reading an unlimited number of sensors in parallel.

[@cameravala]

How to this the other way around?? I want to send 5 different variables from MIT app to Arduino.

[@stephine3652]

sir may i ask for the .aia file of the app? if u dont mind, just wanna check it..

[@user-eg2sb6zy2r]

Hi, I want to connect multiple Bluetooth devices using app invetor

[@codewithadvait7913]

cool intro

[@ekookta5998]

Can this sensor data be saved? Thanks

[@jagannathans2292]

nice sir

[@JRDN97193]

Hello, how to do without dht11 but with 2 potentiometer

[@hels9732]

Great tutorial! is there a way of displaying the sensor readings side by side in landscape view? it doesn't like the split text or maybe its the index list of 1,2,3 and creates an error of: "select list item: attempt to get item number 2 of list length 1" anybody know a solution?

[@ayookunlola1537]

I have same error

[@amarobarbosa8483]

if | lenght of list | get:| global l list >=1 then: set |temp.Text to: | select list item list | get | global list | index |2| || \/ || \/

[@kadirustasarac5812]

THX

[@archibalddu0013]

I can't read the sensors even with the app given by z_hut. The 3 places where the data of the captors should have beenwritten are empty. Did anyone have the same bug?

[@gavohsachibani2412]

why data travels from one label to another?

[@josemariadiy6400]

Hello, very interesting video.👍👍 But, what would I need to send data from sensors that are in different arduinos, to visualize them in the same application - App Inventor???🤔 I would appreciate your answer.

[@christophestern]

Hi, One year later... I just wanted to tell I have the same question. Maybe I'll take advantage of this other topic (kzbin.info/www/bejne/aYi1Y2B-icSAn7M). It shows how to connect with 2 Bluetooth devices at the same time. And maybe it is possible to connect to one BT device, then to close connexion and to open a second one with a secind BT device, and so on... @Josemariadiy6400: Did you find your solutiion? See You.

[@eastern815]

thanks man I did it

[@zabihullah3604]

Please share the ".aia" file for the AI2

[@zabihullah3604]

i have the same problem

[@marketingpuntocom8710]

Hi if you want to fix "select list item too large" bug........... in the comparison structure select > , i put my *.aia drive.google.com/open?id=1IjGMsS1CHB_vc-UbcCkvYa7-ZbeHpKfQ

[@bahrounahmed9453]

hi everyone, i really need help for this problem of select list item too large Thnx for your reply Mail id [e-mail]

[@paddedwallz85]

can you share .aia file, thank you

[@iancalizo5885]

what if i want to use esp8266

[@profisorgoran4357]

pliz i need the arduino code and sorsec code application than x for helpme

[@venkatsabapathy7495]

plzzz help me out from the same error

[@mahmoudsalma7509]

thank you sir for this video. may i ask how can i open the app in MIT app inventor ? is it possible to open apk file in MIT? with regards

[@ayoubammarboudjelal834]

you can emulate the project not the app

[@sowibrahima626]

hello sir, thank you for the tutorial. i want to use arduino Uno to collect data from different sensors which are temeperature, humidity, solar radiation, wind speed. is it possible, i need your help please.

[@dixit-rohit]

I dont understand your app design because label in app which is shown(viewer) is different & components(right side) is different...i am tying to make same app as you have but everything is different than you did in this (app design not website design & its tool (after installation))... no value box is available in which received data was showing in your app & have a label of it (like...light_lvl)... i am using old version of thunkable which is as same as mit app inventor... Would you make a separate video?

[@costanovidades6739]

Congratulations, my friend aki is the adeilton I speak from Brazil, you have how to make a video with acs712 current sensor with the source code of the app inventor and arduino app for me to do an automation project with a switch so that I can light the Lamp When I turn the switch on the application switch on or off hugs

[@saajidthakur6027]

Sir, need assistance with my project complete. I am stuck totally stuck. I am trying to add LEDs & Switches to get an indication with the TEMPERATURE read but I get fail and error messages. Kindly help for make Temperature and two-way switch feedback. ( App Inventor 2)

[@Raarnoldy]

I am getting this error (Select list item: Attempt to get item number 2 of a list of length 1: [""] Note: You will not see another error reported for 5 second). Does anyone have a fix the app seems to still work however it is a little annoying.

[@ManishKumar-kr4gi]

Sir please help me same code &app develop but not receive data my app

[@jantomazin22]

Anyone got the copy of the app that can share?

[@brentroberson7211]

Hello I am trying to get a motion detector that is connected to the arduino to send a notification to my android phone with the use of the app inventor. I can only find ways to send info from the phone to the arduino but can't find information about how to get notifications from the arduino. If anyone could help that would be great. Thanks.

[@paulojamero9670]

Same problem here.

[@ayookunlola1537]

I tried the apk it is telling me lengths of 2 of 1 error and the code is complaining as stay 432 pls help

[@darrenmagturo1712]

hi i just want to ask how the index works to arduino, cause i keep on failing to match the numbers to be displayed

[@popshoppacks]

I'm having the same problem

[@abhishekjaju69]

how can i get the app that you used in the video. would be gr8 if u reply soon.

[@z-hut1663]

there is a link to the projects website in the video description where you can download it

[@Mysonlyfong]

How to Display hidden components in Viewer?

[@arnokleinjan2192]

Hi, Can you also make the .aia file available? kind regards, Arno

[@oklahoma99]

.

[@khadesuraj]

in my case load cell is connected and it is sending data through uC and Bt module continuously with start bit as 10 and stop bit 13 bit i unable to format this data on app. Data is comming continously with shifting digit place values

[@justwalker1697]

may I get your loadcell code? it's connected with hc-05 right?

[@socialogic9777]

Getting the error : Attempt to get item number 2 of a list of length 1. Anyone can help ?

[@mdafzalahmed4675]

ya

[@xiaomyredmii7430]

what about web? not just bluetooth

[@codewithjc4617]

Hi men, just a quick question, what is the Logic level converter for???

[@z-hut1663]

arduino board is 5 volt logic and the HC-06 or HC-05 is 3.3 volts logic, use the converter or A voltage divider and you will be good to go. if yoy use 5 volt logic into the HC-06 or HC-05 you distroy it after a short time....

[@codewithjc4617]

Shoot, actually i've been using 5v from my arduino and connecting it directly to my hc 05 and it doesn't send Any data, i mean, it turns on, and it connects yo the app but i don't receive Any data on my phone, i guess i burned it, thanks so much for the info men! Great videos, and just another question, what about if i connect the vcc of my hc 05 to the 3.3v pin of my arduino?

[@z-hut1663]

John J. kzbin.info/www/bejne/b4DPlJiNZrxkr7c this video will explain all your questions..

[@codewithjc4617]

Z-HUT Thanks so much man! Now i have it all clear, keep up the good work!

[@malcolmpalmer2437]

The Arduino file does not show how to read the MIT app and doesn't show how to send the readings of the temperature sensor to the MIT app. It shows only how to display the readings on the serial monitor of the PC!!!!

[@markhalliwell5276]

is this possible with a pressure sensor?

[@cristobalvalenzuela2740]

Yeah, it should be pretty much the same

[@thomasgovaerts]

I have a problem with my MIT App, can someone help me? I have an app that read the temperature that the arduino receive and that works well. The problem is that I have to transmit an information (basicly 1 and 0) to my arduino to control one other thing but I think that the arduino can't read it because there's too much information... Is that true? Can I fix that?

[@tejasmaryjane2174]

I'm having the same issue but haven't been able to figure it out, did you have any luck?

[@ziksnziki523]

I inspired myself from your code but I'm having an error, Error 507, the app is not connecting, what should I do?

[@ayoubammarboudjelal834]

i have the same problem did you find the solution ?

[@projectmasel9330]

hi ' im working on a project , like your project ' and im having a trouble , i will be happy if you contact me and help me . thanks!!

[@Bharathalleni]

Please share the ".aia" file for the AI2

[@marketingpuntocom8710]

Hi if you want to fix "select list item too large" bug........... in the comparison structure select > , i put my *.aia drive.google.com/open?id=1IjGMsS1CHB_vc-UbcCkvYa7-ZbeHpKfQ

[@iulian312]

@@marketingpuntocom8710 thx ^^

[@medghenia4530]

Please share the aia file :)

[@MounishPatelSeetha]

Hi.. after around 30 seconds , I am getting " select list item : list index too large " , what could be the problem?

[@efeoktay244]

same

[@hajar2629]

hello ineed file aia not apk

[@dayc3093]

How to save it? Save to excel or text. Example: at 8:00 am, 80 celcius at 8:30 am, 74 celcius

[@saliheenafridi9116]

You can save it sqlite database