The Fingerprint Door Lock (FPDL) using Arduino with SIM800L research is designed to improve the security and convenience of door access control by integrating fingerprint recognition with Arduino and ...

The SIM800L module ensures the encrypted transmission of data between the door lock system and users' mobile devices, providing secure and dependable communication. By integrating Arduino, fingerprint ...

It is important to note that the SIM800L module requires a stable power supply of at least 2A, it is strongly recommended to use an external power supply to power the SIM800L module. The SIM800L's VCC ...

It is very easy to build an “SMS-controlled relay” with the help of a cheap GSM modem module and a small microcontroller board. Here, I’m using the SIM800L and Arduino Nano V3 to develop a nifty ...