I am doing a project and came across this forum and was wondering if anyone could help me. I am trying to build an automatic colour sensing mailbox which detects different colored envelopes with an arduino and then lights up an independent device with the corresponding color. Does anyone know how to go about this? I've never programmed or used an arduino before, it is for a university seminar and we are pretty much left to figure it out by ourselves.
I have not used this device but the link goes through the setup.
You could add a LCD display for visual messages.
You could energize LEDs relays motors or other output devices.
It shows using an UNO.
The Arduino IDE comes with examples to control devices and lots of tutorials on the WEB.