That will be your reference sensor output and pressure. It means that you should save the sensor output in volts in a place where you already know the pressure of. But the formula needs to be found by the one using the sensor, since it’s not factory-calibrated. Here’s the answer: There is a linear relationship between the pressure and the sensor output.

Discover parts from Texas Instruments, Microchip. Compatible with Eagle, Altium, Cadence OrCad & Allegro, KiCad, & more. Add to Library See Datasheet PDF Pricing. Second, you want to know the relationship between the sensor output and the actual pressure. Temperature Sensor Digital, Infrared (IR) -40C 85C 16 b TO-39. Petite Balance Romaine, The Melexis MLX90614 is an infrared thermometer designed for non-contact temperature sensing. So now you know all you need about the sensor output and what is displayed on the Arduino Serial.

Firstly, I bought the BAA version of that sensor, but it always measured lower temperatures than it should. And about your question, the answer is somehow the same as the answer to Damigo, but I’ll put it in another way trying to make it a little clearer.įirst, the output of the module is a voltage between 0 and 5 volts BUT what is displayed on the Serial Plotter and Serial Monitor of Arduino IDE is an integer between which you can convert to volts using this formula: Suppose the integer displayed on Arduino Serial is X then: The sensor output voltage equals “5 * (X / 1024)”. MLX90614 reads low temperatures Using Arduino Sensors arturoolvrs July 27, 2021, 10:06am 1 Hello everyone, I am building an infrared contactless thermometer using this sensor, the MLX90614, but I always face the same problem. You’re so welcome, but it’s actually Mohammad’s tutorial, not mine, as you can see at the beginning of the tutorial right under the title.

Mlx90614 sensor proteus library