STEM Project! Make your own Lighthouse - Learn to solder

(4 reviews) Write a Review
  • Stem Project Lightouse soldering kit Assembled PPKIT4000
  • Stem Project Lightouse soldering kit PPKIT4000 contents
  • Lightouse soldering kit PPKIT4000 PCB rear
  • Lightouse soldering kit Assembled Rear


STEM PROJECT! Lighthouse -Learn to Solder Kit - STEM Learning

Perfect for Christmas stocking, Birthdays or just because! This project is more advanced than the entry level fisrt step projects listed below...

Day of the geek badge 4 different colours PPKIT4009 PPKIT4010 PPKIT4002 PPKIT4001

Heart Pendant - A Beating Heart Educational Soldering Kit -STEM PPKIT4008

Unigeek - A Unicorn badge soldering kit - Learn to Solder PPKIT4006


Looking for a STEM project ideas? Look no further...

The next level of difficulty following on from the day of the geek and unigeek badge kits!

Have you built up your Day-of-the-Geek or UniGeek badge kits? Well in that case why not carry on brushing up on your soldering skills? Our lighthouse soldering kit has been designed as a great STEM learning kit to evolve your soldering skills and also learn a little about electronics. The circuit is based on a Multivibrator Circuit, which in this case is made up of two transistors, cross-coupled by resistors to provide a two-state on-off circuit.
Once soldered this will emulate an Isophase lighthouse but fear not all you lovers of Occulting lighthouses by changing the value of the resistors you can change the flashing pattern.

A fabulous addiition to any Birthday, Christmas, Haloween or just because gifting for a child (or adult!) who loves super cool and fun projects!

Lighthouse Assembly:

This STEM kit will take approximately 20 to 30 minutes to assemble with only basic soldering skills and equipment. Proto-Pic designed these kits so that anyone from 7 and upwards can build them, although young people should always be supervised when using Soldering Irons. Because these can be or at least should be very HOT!!!
Our PCB is in 2 parts. The main PCB is where you solder the 11 components, and then the base PCB slots into the bottom of the lighthouse with a couple of blobs of solder. Consequently, your lighthouse has a strong and stable stand.

Required Tools:

Lighthouse Kit Contains:

  • 1 x 220 ohm resistor ( Red, Red, Black)
  • 1 x 82k ohm resistor (Grey, Red, Orange)
  • 2 x 220k ohm resistors (Red, Red, Yellow)
  • 1 x White LED
  • 2 x 2N3904 NPN Transistors
  • 1 x Power switch
  • 1 x CR2032 battery holder (battery not included)
  • 2 x 10uF Capacitors
  • 1 x Lighthouse PCB
  • 1 x Stand PCB


Want to know how this works? It's a bistable multivibrator (or flip-flop!):
Lighthouse kit schematic

Lighthouse Assembly Video Tutorial:

We have created this video tutorial to help you assemble your lighthouse kit. If you need further help though you can call our free tech support line. Or check out this guide for printing.

Day of the geek badge 4 different colours PPKIT4009 PPKIT4010 PPKIT4002 PPKIT4001

Heart Pendant - A Beating Heart Educational Soldering Kit -STEM PPKIT4008

Unigeek - A Unicorn badge soldering kit - Learn to Solder PPKIT4006

View AllClose

Additional Information

Hot Solder
Part Number:
View AllClose

4 Reviews

  • 5
    Title of review 52712

    Posted by David Shapell on 12th Mar 2021

    Easily the best soldering kit we've found, we use these in our STEM sessions aimed at primary aged kids

  • 5
    Title of review 52713

    Posted by Susan Galloway on 10th Jan 2021

    great soldering kit, my kids loved these. definitely there favorite stocking filler this xmas

  • 5
    Title of review 759

    Posted by Glyn Harper on 6th Feb 2018

    A lovely kit suitable for children aged 9 or 10 upwards. Myself and my son had a lot of fun soldering this kit and he has something 'real' to show for his work. Very happy. :)

  • 5
    Title of review 758

    Posted by Harry Weston on 27th Jun 2017

    An excellent kit, but it could be further improved with more details in the guide:<br />1) a circuit diagram <br />2) Type, part number, of transistors<br />and Value of the capacitors in the component list.<br />It would be nice to have an explanation of how the isophase duty cycle is achieved.<br />For a beginner in soldering it should also mention:<br />3) say that it needs flux cored solder<br />4) need to keep the tip clean and shiny with a damp sponge or brass wool (If these are covered elsewhere then I apologise for not realising that):

View AllClose