Sim800L GSM GPRS Module with Arduino, Send SMS, Receive SMS, Request SMS, and Alert Message

now you can control your electrical loads and monitor sensors by sending a message from any cell phone using the artbo and gsmm 800l Mario you might be wondering if anyone can control loads or monitor sensors by sending a message from any cell phone then anyone would misuse it well that's not the case I have designed this system with careful consideration to control any load or request the value of a sensor you need to enter a password and you know without a password nobody would be able to control anything or request the sensor video and the most amazing thing about this project is that you can send control and request commands from any cell phone and my design system will replay back to you on that same number when uino receives a message it extracts the sender sell number and replies back to that number isn't it amazing of course it is now if your SMS package runs out or your cell phone is standof or if it gets lost there is no need to worry you can use anyone cell phone to control your loads and monitor sensors let me practically demonstrate it for you since this is just a protype model and a beginner level project so I have tried my level best to make it as simple as possible so that's why for the demonstration purposes I'm using a potential meter as a sensor and 110 or 220 volt AC bulb is the load but if you want you can use any other analog or digital sensor and the same thing applies to the bulb anyway I have powered up the arbino board and I have also connected the 220 volt AC Supply when the 110 or 220 volt AC Supply is connected never touch the relay contacts it is important to note that when working with means voltage proper safety precautions should always be taken and it is advisable to consult a relevant electrical codes and standards I'm sure you might have noticed that I'm using a single 12vt power supply and this is because my designed arino Nano development board has this 5vt and 3 amp power supply which is more than enough to power up the aruo GSM Sim 800l module and all the other electronics I've seen many people complaining about the GSM Sim 800l module stating that it doesn't connect to the network or keeps restarting such issues are often related to the power supply so if you use the same 5-fold and 3M power supply you shouldn't face any problems if you don't want to make such a development board then you can also make this type of the 5all and 3M power supply I will add links to all the related videos in the description as you can see the Sim 800 El Maru is connected to the gsm network now let's try turning this bu on and off the message simply consist of the password this password can consist of letters numbers and special characters then the word relay and finally the command on or off you might have noticed I used percentage sign I'm doing this because when the Arduino receives this message then the Arduino can easily split this message using person sign is the delimiter anyway the message is ready and I'm going to send it to the arino [Music] as you can see the bul has turned on and now adino will send me a feedback [Music] message I have received the feedback message no matter which number you use to send the message you will receive the feedback on that same number this feature is incredibly amazing and I'm sure you will also like it let's turn off the bulb this time in the message I have written [Music] off as you can see the bu has turned off and now I'll receive a feedback message now let's check the value of the sensor this time I have only written the password and the command request the message format remains exactly the same let's send this message [Music] message as you can see I received the Sens of value now I will rotate the knob of the potential meter slightly to change the value let's request the sensor value [Music] again this time you can see I have received a different value in this way you can monitor the sensor at any time and from any cell number provided you remember the password and message format and not just that in this project I have also added an automatic feature when the sensor value crosses the threshold value I receive a message saying value exceeded so let's increase the value and see if we receive the message this is amazing in one video you will learn all these things so without any further delay let's get started the s 800 L is a GSM GPRS module that enables communication over the gsm network it is commonly used in embedded systems and iot Internet of Things based projects for applications such as sending SMS messages making phone calls and connecting to the internet or GPRS simp 800l module supports quadband GSM GPRS networks which means it will work almost anywhere in the world the SIM card holder or slot is on the bottom side direction for inserting the SIM card is in engraved just make sure the notch is pointing upwards when inserting the Sim on my side I've successfully tested using eone and Zone SIM cards and I'm sure it would also work with Chase and Tor this is the UFL connector for connecting other antennas other than the helal antenna connected to the pin number one in my case I have connected both the antennas this is the network status indicator LED so when you power up the Sim 800 L module initially it blinks faster so you'll need to wait for a few seconds when it's connected to the network then it starts to Blink at a slower rate but if for any reason it blinks at a faster rate then remove the SIM card and insert it again and also check your power supply I already explained it during the Practical demonstration it is a total of 12 pins and the big thing is there is no labeling so you would have to remember all these pins by heart or you can download this spin out diagram from an article available on electronic clinic.com net pin is where you can solder the helical antenna that comes with the Mario VCC pin is the power supply pin connected to a stable power source within the specified voltage range typically 3.4 to 4.4 volt this provides the necessary operating power for the modu the RSD pin is used to reset the Sim 800l module when this spin is pulled low or connected to a logic low signal for at least 100 milliseconds it triggers a hard reset restarting the module rxd is the PIN used for receiving data by the Sim 800l module connected to the the TX pin of your microcontroller or other communication device txt is the PIN used for transmitting data from the Sim 800 L module connect it to the RX pin of your microcontroller or other communication device ground is the ground reference pin connect this pin to the ground of your system to establish a common ground reference the speaker minus and speaker plus pins are part of the audio interface and are used for connecting the negative and positive terminals of an external 8 ohm speaker the mic minus and Mic Plus pins are used to connect the negative and positive terminals of an external microphone dtrr pin controls the sleep mode pulling it high causes the module to enter sleep mode disabling serial communication pulling it low for approximately 50 milliseconds will wake up the module ring pin is the ring indicator this is basically the interrupt out pin from the module It Is by default high and can be configured to goo when a call or SMS is received if you want to know more about its technical specification and other features then read my article I have added a link in the description now let's go ahead and take a look at the wiring connect the VCC and ground pins to the 5f and 3M power supply connect the dxt pen to the Arduino D9 and connect the rxd PIN to the Arduino d10 out of these four relays I'm using only one relay it's a 5-fold spdt type relay and it's connected to the uino digital pin D4 make sure you connect the relay module VCC and ground pins to the 5f power supply if in case you're using an external one channel or multiple channels relay module connect the leftmost and rightmost legs of the potential meter to the 5vt and ground connect the middle L of the potential meter to the arino and loog pin a z you can follow this circuit diagram you can see the VN and ground wires in the circuit diagram simply connect these wires to a 5V and 3M power supply you can follow this circuit diagram if you want to make your own 5f and 3 amp power supply you'll need to download this program from our website electronic clinic.com and uploaded into your arbino Uno or arbino Neno or arbino Uno Alo Minima board anyway for the line by line explanation you can read my article I have already uploaded this program and now let's watch the arino and Sim 800l GSM GPRS Mario [Music] connection support me on patreon for more videos I hope you like today's episode like and share this video with your friends see you in next episode and thanks for [Music] watching

Channel: Electronic Clinic

Views: 10,181

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Id: ZIhzUU4OPrQ

Length: 9min 56sec (596 seconds)

Published: Mon Dec 04 2023