|SM5CBW's Arduino Clocks|
|I have made eight of these in different colors
and with different LEDs.
The green and the yellow are in our bedroom.
The blue and the red was christmas gifts to our closest friends.
On top left there is a push button for displaying the temperature in 5 seconds.
On the top right there is a PIR-detector for increasing the LED intensity when you are near,
but between 20.00 and 07.00 hours the PIR is deactivated.
On the rear side is a switch for selecting normal time or daylight saving time.
They are powered from a 9 V switched supply and the clock chip has a battery that probably will last five years.
The Arduino board is a Uno althought a Nano would have been sufficient.