The UN index in Colorado is really high. We would like to DIY a UV index meter to show that a sunscreen is necessary when play outdoor.

CuteDigi sells a UV sensor that outputs a voltage that is proportional to the UV intensity. By using the ADC circuit of pcDuino v2, to measure this variable voltage, we should be able to tell the UV index. As this meter is going to be used outdoor, we would need to handy screen. Yes. We know that pcDuino has desktop. But for this simple meter, a 16×2 LCD with I2C interface is adequate.  Also, we need to power pcDuino as this project needs to be mobile. The battery we selected is the stylish battery pack.

The whole setup is shown below:

The detailed article can be found at: http://www.cutedigi.com/blog/uv-meter-with-pcduio-detailed-instructions-of-hardware-project-with-pcduino/