Connect the VIRTUAL TERMINAL to the same serial lines as the Arduino.
The SIM800L works via Serial Communication (UART). Here is how to connect it to the Arduino in the simulation:
| SIM800L Pin | Arduino Pin | Function | | :--- | :--- | :--- | | VCC | 5V | Power (Check library specs, some require 3.3V-4.4V) | | GND | GND | Ground | | TXD | Digital Pin 2 | Transmit Data | | RXD | Digital Pin 3 | Receive Data |
Note: In simulation, we often use SoftwareSerial on pins 2 and 3 to keep the hardware serial (Pins 0 & 1) free for debugging.
The SIM800L Proteus library is an invaluable tool for embedded developers, educators, and hobbyists, despite its limitations. While no simulation can fully replace physical testing, it can catch 80% of logic and wiring errors before they burn hardware.
To recap:
Whether you are building a remote weather station, a vehicle tracking system, or a smart irrigation controller, simulating your SIM800L-based design in Proteus will save you time, money, and frustration. Start simulating today, and watch your IoT ideas come to life – virtually first, physically second.
