Sim800l Arduino Wiring Diagram. Use pin 10 and 11 for serial connection between arduino and sim800l. For safety give the power to sim800l module through arduino uno board via a diode as follows.
Because in the datasheet it says that vcc must be at 44v maximum. Arduino and sim800l wiring diagram. Fore more details read the following image as well.
To test the module connect the sim800l module to your system with the help of arduino open arduino ide after this select the com port open the serial monitor enter the following at commands.
This enables http or https requests with get. Sim800l is nice and inexpensive gsm breakout board. Now that we know everything about the module we can begin hooking it up to our arduino. If all the wiring connections are checked and confirmed as correct go to the arduino program and do the coding.