Use Smartphone As Non Contact Thermometer / Portable Thermometer

Measuring body temperature with non-contact / contactless like a thermo gun. I created this project because Thermo Gun now is very expensive, so i must get alternative to make DIY. And the purpose is make with low budget version.

Supplies

• MLX90614
• Arduino Nano
• OTG Micro to mini usb

MLX 90614 have i2c communication, so in Arduino Nano use pin A4 & A5

for library MLX90614 i use adafruit library, you can Open Arduino IDE and menu Tools -> Manage Libraries -> search MLX90614. and click Adafruit MLX90614 Library then click install in Library Manager

Open Arduino IDE, Click File -> Examples -> Adafruit MLX90614 Library -> mlxtest.

Upload then see serial Monitor, you can see Ambient temperature and object temperature

After sample MLX90614 code work, prepare circuit between arduino nano and mlx90614 sensor like a picture. For OTG you can make DIY with Male Microusb and Male Miniusb

Cover Portable Thermometer can download file 3D in https://grabcad.com/library/portable-thermometer-box-1 and print with your 3Dprint Machine

You can search in playstore "portable Thermometer" or you can click this link Portable Thermometer or you can scan this qr-code

How to running Portable thermometer

• Connect device in your smartphone with OTG.
• active OTG Connection in your smartphone
• Run application
• click check now to check body temperature