Day 10: Temperature display
Today’s project is an intuitive display of the current temperature. With a single look, you can guess at whether it is sensible to take along a warm jacket. The RGB-LED on Pins D3, D5 and D6 Behind today’s door, there is another LED. This is a special one. It is an RGB-LED. RGB means Red, Green, Blue, the LED actually is made up of several LEDs with a shared cathode connection. A combination of the different colours with different brightnesses permits presenting almost any colour. The LED can be connected to the PWM outputs D3, D5, D6 of the controller with dropping resistors. ...