The MLX90614 typically uses an I2C (SMBus) interface for communication. Tomson Electronics Description Connection Type Power supply (3.3V or 5V version) Connect to VCC Connect to GND Serial Clock Connect to Microcontroller SCL Serial Data Connect to Microcontroller SDA 3. Simulating in Proteus Once installed, you can build your circuit: Search for Component
Search for "MLX90614 Proteus library" on GitHub or ElectroSome. You need : mlx90614 proteus library
Even with the library installed, you may encounter issues. The MLX90614 typically uses an I2C (SMBus) interface