MLX90614 With Heating Plate
![Heating Plate Size](https://www.createmakers.com/wp-content/uploads/2022/06/Heating_Plate_Size_Optimized.jpg)
In this blog, I will be using a heating plate to test for the distance to spot ratio of MLX90614 without lenses, with a copper lens hood and Fresnel Lens.
MLX90614 Distance to Spot Ratio
![MLX90614 With Copper Lens Hood](https://www.createmakers.com/wp-content/uploads/2022/04/MLX90614_With_Copper_Lens_Hood.jpg)
Distance to spot ratio (D:S) is the ratio of the distance between sensor and target size. The object should completely fill the FOV of the sensor.
MLX90614 Distance Dependency
![Fresnel Lens VS Lens Hood on MLX90614](https://www.createmakers.com/wp-content/uploads/2022/03/Fresnel_Lens_VS_Lens_Hood_on_MLX90614_Banner_Optimized.jpg)
Temperature readings vary as object moves away from MLX90614. The distance dependency can be reduced with lens hood and Fresnel lens.
Arduino With MLX90614 and OLED Display
![MLX90614 With OLED Display](https://www.createmakers.com/wp-content/uploads/2022/03/MLX90614_With_Oled_Display_Optimized.jpg)
OLED display is an extremely handy way of interfacing sensor readings. I2C communication protocol with only four wires to hook up the OLED.
MLX90614 Voltage Compensation
![MLX90614 Voltage Compensation](https://www.createmakers.com/wp-content/uploads/2022/02/MLX90614_Voltage_Compensation_Banner_Optimize.jpg)
Any voltage lower or higher than 3V might introduce temperature errors into MLX90614. A voltage compensation equation can solve the errors.
MLX90614 Infrared Temperature Sensor Tutorial
![MLX 90614 Contactless Infrared Temperature Sensor](https://www.createmakers.com/wp-content/uploads/2022/02/MLX90614-Contactless-Infrared-Temperature-Sensor-Blog-Banner-Optimized.jpg)
Measure the temperature with Arduino and contactless Infrared temperature sensor, the MLX90614 without any physical contact with the object.