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Timer Project Kit

Exclusive to Kitronik
Teaching Notes
Key Stage 3/4
The Timer Project Kit uses a Dual 555 Timer. Once the button has been pressed, the count-down begins and the LED lights. The buzzer sounds once the time is up.

Availability: In Stock.

Code1+ 5+ 50+
(£6.06 incl VAT)
(£4.14 incl VAT)
(£3.78 incl VAT)

The timer project uses a dual 555 timer, which once started by pressing the button illuminates an LED until the desired time out period has elapsed when a buzzer is sounded.

The duration of both the delay and buzzer sound period can be determined by the student and are easily adjusted by PCB mounted potentiometers. This allows the board to be used for a variety of applications, such as an egg timer or a timer for a game (Max time period 200 seconds, max buzzer period 10 seconds).


  • Adjustable delay and buzzer sound.
  • Maximum time period: 200 seconds.
  • Maximum buzzer time: 10 seconds.

Possible Applications Include:

  • Egg timer.
  • Timer for game.



  • PCB Length: 54mm.
  • PCB Width: 46mm.



This kit is supplied in a simple grip seal bag.

Free samples:

Teachers can order a sample of this kit (one per school) here. You will need to select the kit from a list of all the sample kits; the stock code for this kit is 2104.
Note: this service is only offered to schools for evaluation purposes only.

Buy British:

 This kit is designed and manufactured in the UK by Kitronik.


Posted by Chris, Thursday, 5 March 2015 on product Timer Project Kit


Could this board handle being powered by 12v dc?


  • Posted by Michael Lockhart on Thursday, 5 March 2015

    The 100uF Capacitors are only rated up to 10V, and they do not have a safety vent. So the board shouldn’t be powered by any voltage higher than 10V.

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