Sim800l Proteus Library -

ankitghevariya/SIM800L: An Arduino Library for GSM ... - GitHub

In the real world, SIM800L uses 3.8V. However, in the Proteus simulation , the library's model is often 5V tolerant. Do not use this as a reference for real hardware design; it is purely for simulation logic. sim800l proteus library

With that understanding, let’s proceed. ankitghevariya/SIM800L: An Arduino Library for GSM