A TCS3200 color sensor is a much better choice, and you can buy a nice assemble module for about $2 from our friends in Shenzhen. And before you say the point here is DIY, DIY doesn’t mean 20 ...

The device can output to UART serial, SPI, I2C, digital out, or analog out, a PC/Mac app called PixyMon shows what the sensor is seeing when plugged in, and of course Pixy can be hooked to a ...

South African researchers have developed a new cleaning system for solar panels that uses a color-sensing light-to-frequency converter to detect dirt. It can reportedly remove around 95% of the ...