Sometimes electrical flectuations also affect the Arduino LED Output. For example, if the led is in ON state suddenly goes to off while on the table fan which is connected in other room main supply.
@TechToTinker
2 жыл бұрын
Try to check your power supply first, it should be providing a 3.4V to 4.4V with a minimum of 2A current. Less than that will surely make weird and not working functionality.
@faroekjuthan89
3 жыл бұрын
You did a great project here, my compliments. It works perfectly. I spent a lot of time to find something for relay control. Thanks for sharing and good luck with your projects. The second code wich you write for Ajit alsof works great.
@TechToTinker
3 жыл бұрын
@Faroek Juthan, great to hear! Thank you.
@jahangirali6150
4 жыл бұрын
my Question is whose number write in the code (String number = "+xxxxxxxxxxxxx";) that are insert SIM in module SIM 800L or other On which we receive message or call
@rajendrapalan9519
7 ай бұрын
How to received phone call from GSM 800l board
@mr.g1625
2 жыл бұрын
All working well. But after long time didn't the call attend automatically; it will work again after resetting the button on Arduino uno. Do you know why this problem occurred?
@TechToTinker
2 жыл бұрын
Try checking if SIM800L is able to connect to your network (the LED on gsm module should blink once every 3 seconds. If it blinks every second, then it means it is still trying to connect)
@kamalkamel7559
4 жыл бұрын
NICE PROJECT!!!! THANKYOU FOR SHARING
@TechToTinker
4 жыл бұрын
You're welcome @kamal. Thank you for visiting my channel :)
@ashok_ign5623
3 жыл бұрын
Thank you so much i am searching from one month really Helpful 🔥🔥🔥🔥
@TechToTinker
3 жыл бұрын
@Ashok Kumar Dhaker, glad that it helped you. Thank you.
@ashok_ign5623
3 жыл бұрын
@@TechToTinker Love your work
@TechToTinker
3 жыл бұрын
@@ashok_ign5623 appreciated bro. Thanks
@rogeriomaker
3 жыл бұрын
PARABÉNS PELO PROJETO. CONGRATULATIONS ON THE PROJECT.
@TechToTinker
3 жыл бұрын
@RNG_MAKER, Im glad that you liked it. Thank you.
@coolsk9
3 жыл бұрын
Sir I want D.O.L starter motor control lig by using calling please make the project sir for me
@TechToTinker
3 жыл бұрын
Why not code it by yourself and learn through the process? I could guide you (for you to learn). I will not give you the code, you won't learn anything from that.
@pinoycircuithub504
4 жыл бұрын
Cool project! Ang galing!
@TechToTinker
4 жыл бұрын
@PINOY CIRCUIT HUB thank you
@angenicanatanauan9732
3 жыл бұрын
Hi sir! What diode did u used 1N4148 1N4007 1N5819 1N5399 1N5408 1N5822 FR107 FR207 as rectifier diode? Can I get the values of the resistors you used? Thank youuuu!
@TechToTinker
3 жыл бұрын
@Ange Nica, I used IN4001 as far as I can remember. With regards to resistor values, use this online calculator. Input your VS = 5 if you use 5V. Set Vout = 4.4. Then set either R1 or R2, and the other resistor values will be calculated for you. ohmslawcalculator.com/voltage-divider-calculator
@ahmedtaher4015
3 жыл бұрын
Thank you for your nice effort But when I copied the program it gave me many errors softwareserial dose not name a type did you mean hardwareserial
@TechToTinker
3 жыл бұрын
@Ahmed Taher, you might need to install the SoftwareSerial library. Cheers.
@anokhautomation4453
3 жыл бұрын
👍Nice project Mr George
@TechToTinker
3 жыл бұрын
Glad you like @Rameshkumar.
@iantcroft
3 жыл бұрын
Sim800L logic level is 2.8v not 3.3v and power supply needs to provide 2A bursts of power.
@TechToTinker
3 жыл бұрын
@Iam Tcroft, yes you are correct with that. Thanks
@ahmedtaher4015
3 жыл бұрын
Good night Really a great program But I have a problem that when pressing one number it gives start and when I press one again it does not give off Why is this and it stays on Sometimes it's good to turn it on and off
@TechToTinker
3 жыл бұрын
@Ahmed Taher, have you tried the 2nd example source code?
@ahmedtaher4015
3 жыл бұрын
@@TechToTinker Is it useful for the control to be one operating, two separating, and so this could be better
@creusafarias279
3 жыл бұрын
Muito bom! Very good.!!!!!
@TechToTinker
3 жыл бұрын
Hi @receitas da creusinha, glad that you loved it. Thank you.
@venkateshm8479
4 жыл бұрын
Sir I need help, so when I call the gsm module for the first time, or when I send a sessage with a particular character then the gsm should automatically register our number to send the status of the load.... Please help me...
@TechToTinker
4 жыл бұрын
Hi Venkatesh, If you study the source code in this link I will be posting: kzitem.info/news/bejne/qXigz3qjhKVmlno You will have the template for parsing the sender number. Cheers.
@ajitzagade7286
4 жыл бұрын
Sir, If I wanted to do a project like the one below, I need your help 1. Make a call to the device, press "1", LED 1 lights up. An SMS is sent from your device to your phone, that the command has been completed. 2. The same with LED 2. 3. Pressing "1" or "2" again will turn off the LEDs and an SMS message will also be sent. 4. And so on. Please make a video
@ajitzagade7286
4 жыл бұрын
ajitzagade19@gmail.com
@TechToTinker
4 жыл бұрын
Hi Ajit, I modified my blogpost. See another source code for you: techtotinker.blogspot.com/2020/07/tutorial-how-to-use-sim800l-dtmf-to.html You need to edit this part for your application: String number = "+ZZxxxxxxxxxx"; // Replaced the following: // ZZ - your country code // xx - 10-digit mobile number Hope this helps. Cheers, George
@gabrielintriago1458
2 жыл бұрын
Hello. What diode are you using between the Arduino 5V and the SIM800L VCC?
@TechToTinker
2 жыл бұрын
Any silicon (0.7V voltage drop) general purpose diode will do.
@nitinsawant
3 жыл бұрын
Great
@TechToTinker
3 жыл бұрын
@Nitin S, thank you.
@nitinsawant
3 жыл бұрын
@@TechToTinker buddy can you make video for connecting sim800l fm radio to bluetooth headset?
@TechToTinker
3 жыл бұрын
@Nitin S, that's very difficult to achieve with the SIM800L module that I have. I think, if you are able to attach an FM radio antenna (there are 2 antenna 1 for GSM and another for FM radio. FM antenna is hidden) to it, you can make it work. Then you can add audio bluetooth-capable module to your headset.
@kentbinaoro9164
3 жыл бұрын
Hellow sir good day. I would like to ask if is it possible to add 5 or more commands? I mean in your video it shows it can on 2 led, so is it possible to 5 or more led?
@TechToTinker
3 жыл бұрын
@kent binaoro, yes of course. Microcontroller is powerful, the only limit is the imagination.
@kentbinaoro9164
3 жыл бұрын
@@TechToTinker wow😲..... Can I make a request sir? I really want to know how to add another led in sim800l. I mean I want to know how to add 6 command. Please🙏
@mrhide7403
3 жыл бұрын
Hello which mobile number I have to give on coding ,calling mobile number or receiving mobile number in sim800l ?
@TechToTinker
3 жыл бұрын
@Mr Quick, what do you mean? Can you explain further please?
@mrhide7403
3 жыл бұрын
@@TechToTinker On coding section there is a line to add mobile number, my qus is which number have to add there??
@TechToTinker
3 жыл бұрын
@@mrhide7403 is the source code came from here? techtotinker.blogspot.com/2020/07/tutorial-how-to-use-sim800l-dtmf-to.html?m=1 because this is the companion blog for this video. What line of code you are talking about? Or are you talking about different video
@mrhide7403
3 жыл бұрын
@@TechToTinker yes talking about this video, I got a line here in code where need to put mobile number, I told which number I have give here, Sim800L or mobile that I call to sim800L?
@TechToTinker
3 жыл бұрын
@Mr Quick if you are talking about the "number" in the second example, that is the number of the mobile number outside the sim800L (not the sim # number inside the gsm module)
@technicalking5813
3 жыл бұрын
Sir :what this code use arduino nano?
@TechToTinker
3 жыл бұрын
@Raza Elecyronic, Arduino Uno and Arduino Nano are pin compatible. Yes you can use it for Arduino Nano.
@technicalking5813
3 жыл бұрын
Sir How to upload this code to ic
@TechToTinker
3 жыл бұрын
Hi @ Raza Electronic, I don't understand what you mean but this code is intended for Arduino Uno. To upload the code to Uno, copy and paste the code to Arduino IDE, save it and upload.
@venkateshm8479
3 жыл бұрын
Hii.... I added Voice Response System to this project working well. But the problem is.. when a person call my gsm module after auto lift it says.. "welcome , please press one to switch on your light , press zero to switch off your light... This voice leads to control my device by unknown person or un known number or wrong call... To solve this problem I should enter 4 digit pin number , say '1234'... I tried this like this in void update led.. If (dtmf_cmd=='1'+'2'+'3'+'4') Serial.print("your password is ok.." ) If(dtmf_cmd=='6') digital write(LED ONE, HIGH); if(dtmf_cmd=='7') digital write (LED ONE, LOW) still it's Not Working only printing password that's it. What should I do Suggest me some Ideas for this problem.
@TechToTinker
3 жыл бұрын
Hi @Venkatesh M, you've got a good project. To answer your question, what I would do is: #1. Create a global variable: byte pin[4] = {'1', '2', '3', '4'}; byte state = 0; #2. Create a state machine using switch case like: switch(state) { case 0: // idle, check pin digit 1 if (dtmf_cmd==pin[0]) { state = 1; // get the next pin digit } break; case 1: // check pin digit 2 if (dtmf_cmd==pin[1]) { state = 2; // check next pin } else { // wrong pin state = 0; // reset } break; case 2: // check pin digit 3 if (dtmf_cmd==pin[2]) { state = 3; // check next pin } else { // wrong pin state = 0; // reset } break; case 3: // check pin digit 4 if (dtmf_cmd==pin[3]) { state = 4; // check next pin } else { // wrong pin state = 0; // reset } break; case 4: // here you can control the led if (dtmf_cmd=='6') { // turn on led } else if (dtmf_cmd=='7') { // turn off led } else if (dtmf_cmd=='8') { // exit control state = 0; // reset } break; default: break; } By the way this code is not tested so it might be subject for errors. Hope this helps you. Regards, George Bantique | tech.to.tinker@gmail.com #TechToTinker
@venkateshm8479
3 жыл бұрын
@@TechToTinker Bro... You are awesome 👍 Your code is worked without any error, thank you so much. By the way I am trying to register mobile number to my GSM module in order to receive messages from the module, here I don't want to insert my Mobile Number while programming, but I want to insert the mobile number in to the GSM module through SMS with a special charecter to recognise the saving number, here am using grater than(>) symbol before the phone number. Here is the code I have tried, It has NO errors it is saying that; "number saved successfully " but I am not receiving any message from the module, also am using SIM800C, My code: {........... ...,........}// A bit of code that receive messages from Mee. Int I = 0, j=0, m =0; boolean msg = false; char message [200], numb[10]; If (serial.available()>0); { While(1) } While (serial.available() ==0); If(Serial.available()>0); { message [i]=serial.read(); if(message [i-1]=='>') { msg = true; } if(message) { numb[j]=msg[i]; j++; m++; } if(m==10) { message == false; break; } i++; } } for (int x = 0; x
@TechToTinker
3 жыл бұрын
Hello @Venkatesh M, have a solution? If not, I have the answer in this tutorial: kzitem.info/news/bejne/qXigz3qjhKVmlno There is a part in the code where I send sms command to change the default number
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