![]() ![]() First, we will build the electronics that flashes the red and blue LEDs. The cardboard should be thick enough to hold itself up, but not so thick you cannot easily cut it with scissors. The paper itself is too flexible and will simply bend. This will help provide structural integrity to the overall project. The choice is yours.įor each design, you’ll need to bond the backing card to some cardboard. This is to allow you to either add-on the fun of colouring the interactive scenes, or simply get on with the interactive portion. We have provided coloured and non-coloured illustrations for the projects. While these are not critically essential, it helps make the builds more fun than simply LEDs lighting up without any context. The printable parts can be printed on any home printer on an A4 sheet. If this is your first project, you may also like to read “Breadboard Basics” in Issue 15, to familiarise yourself with the breadboard before getting started. ![]() There is no soldering or programming required - we’ve kept it as simple as possible. ![]() We’re assuming very little (or zero) electronics knowledge, and so will try to walk through everything carefully, in order to ensure your success. You can use the circuit on just about any cut-out design, but we’ve included a Police Car, Fire Truck and Ambulance for your kids to choose from. Now they can build their favourite vehicle decoration with flashing LED lights to show off to friends and family.Īt the same time, the kids will learn about electronics and be introduced to the versatile 555 Timer IC. So many kids get a thrill seeing an emergency vehicle driving up the road with lights and sirens sounding. ![]()
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