Mlx90614 Proteus Library <2024-2026>

MLX90614 Infrared Thermometer Library for Proteus

, a powerful infrared sensor known for its non-contact precision. However, before building the physical prototype, Leo needed to prove his circuit worked in Proteus Design Suite. mlx90614 proteus library

1. Introduction

The MLX90614, manufactured by Melexis, is a widely used non-contact infrared thermometer capable of measuring temperatures between -70°C and 382.2°C. It utilizes the SMBus (System Management Bus) interface, a derivative of I2C, for communication with microcontrollers. MLX90614 Infrared Thermometer Library for Proteus , a

14. Troubleshooting and FAQ

• Common issues: void setup() Serial.begin(9600); mlx.begin();

  Conclusion

  3. Installation Steps

  1. Download the library zip file.
  2. Extract the files. You should see files like MLX90614.LIB and MLX90614.IDX.
  3. Copy these two files.
  4. Navigate to your Proteus installation folder (usually C:\Program Files (x86)\Labcenter Electronics\Proteus 8 Professional\LIBRARY).
  5. Paste the files into the LIBRARY folder.
  6. Restart Proteus if it was open.

  3. PWM Mode Simulation

  If your library includes the PWM pin, use a logic analyzer (built into Proteus) on that pin. Set the sensor to PWM mode by writing to EEPROM address 0x24. The library will output a frequency of 1kHz (typical) with a duty cycle proportional to Tobj. Common issues: void setup() Serial

  4. Practical Alternative – Skip Simulation

  • Simulate the I2C communication logic using a generic I2C slave in Proteus.
  • Test actual MLX90614 hardware with a physical board (Arduino, ESP32).
  • Use software simulation (Wokwi, SimulIDE, or PlatformIO) that supports MLX90614.