Please tell me how to make power supply of 3.7-4.4 v for gsm sim800l module..... Is there any battery available in this range and for how long time it will provide power to gsm?
use rechargable 18650 lithium battery. usually it can provide power the module for long period before recharging again. you can use a dc to dc buck converter also to power up the gsm module
Hi . Is there anyway to mod this to respond to a call rather than a text ... I don't need it to answer ! I need to operate a relay or bell on ring and stop when the ring ends ..... Our sip phones used to use a function "ring anywhere' that rang an analog line with a factory bell attached .. But the pstn line has been removed .. I could use ring anywhere to ring one of these modules and relay a bell to ring ... But I don't know how to write the code to respond to rings, or even if its possible . Thank you Paul
Can i use 1000uf capacitor instead of 2200uf capacitor? And please also tell me that can i use a diode to reduce voltage of Arduino 5v Vcc pin to provide power supply to sim800l? Please reply.....
hi thank you alot for this excellent video , i have important question , how to make the gsm send msg to my number telling me that the d1 is on or off ( state ) i need your help and thank you
Hellow..... Is it possible tp add some relays to control? Hmm... Please can you teach me how to do it? Or make a video on how to do it and to master the code to use.. please mister🙏 I do really need it in my thesis to pass the exam🙏🙏🙏
if your supply is able to provide 2 Amps, it will not compulsory . But i recommend to use it
Год назад
You should at least use a 470uF capacitor, especially if you have a bad signal - the SIM800X modules are infamous for connection issues because of a low capacitance.
Dear sir, 1)I need to receiving the message automatically when sim800L power On . 2) how to registered the master mobile number and how to change the mobile number with SMS, 3) can store the 2 no’s registered mobile number?, thanks.
Sir, can you help me for one project. Using sim800l and Arduino. Project discription is : When I call through mobile to sim800l. Then I got one sms from sim800l to my mobile. In sms I want to analog data(A1).
can we control the dc motors by gsm messages , please can you teach me that , I really need it to my graduation project , I need to control car dc motors with gsm messages
@tronicslk hello, i've done everything as mentioned in above video and it is fully working but i am having issue that message received by SIM800L module is not of full length, i am receiving only first 13 characters of message do anyone have any solution for this....??
DID YOU KNOW, HOW TO CONNECT SIM800L WITH GOOGLE FIREBASE, AND HOW TO SWITCH ON LED WITH ANDROID APP WITH GOOGLE FIREBASE AND REVERSE UPDATE TO APP AFTER PROCESS COMPLETE, CAN YOU HELP ME IN THIS
@@tronicslk my friend I can not even change because when i write AT and press enter, it does nothing.. doesnt response. What should I do else? Module connect to the network perfectly. my cables are tick and powering is so well
change baud rate in the arduino code, that is what he means. The SIM800L module has its own built-in baud rate. In your arduino code, you should spesify it. Try different baud rates, normally 9600 or 19200 works.
@@sajidmohammad3190 I am telling this by experience and i have done few long running projects with sim800. They work fine for years without needing any logic level conversion
