This is the easy to make Timer project kit from Kitronik. Thanks to the low part count it is a good introduction to electronics. The timer uses resistors and capacitors to create a time delay.The delay can be set from 1 second to 4 minutes via the variable resistor on the board. When the button is pressed the LED changes from red to green. At the end of the time interval the LED turns red again.
This is the easy to make Timer project kit from Kitronik. Thanks to the low part count it is a good introduction to electronics. The timer uses resistors and capacitors to create a time delay.The delay can be set from 1 second to 4 minutes via the variable resistor on the board. When the button is pressed the LED changes from red to green. At the end of the time interval the LED turns red again.