The proposed bike flasher flashes two white LEDs from a single 1.5V cell by using a solitary general purpose transistor, and does not need core for the involved transformer, the main core being the Air itself. Using Joule Thief Concept Every Joule Thief circuit uses ferrite rod or toroid core and its turns are wounded […]
Newly Updated Circuit Projects:
Car Speed Limit Warning Indicator Circuit
In the following post I have explained a simple yet useful car speed limit warning indicator circuit which can be used in vehicles for getting an instant indication of a possible over speed limit conditions. The idea was requested by Mr. Abu-Hafss. Technical Specifications: Shall appreciate, if you could design a circuit to warn with […]
Modifying Car Turn Signal Lights, Park-Lights and Side-Marker Lights
In this post I have explained an innovative circuit modification which allows a single common lamp to be used as a parking light, turn signal indicator light, as well as a side marker light on the relevant positions. The idea was requested by Mr. Chris Technical Specifications I have a project that is slightly related […]
Make this Car Air Ionizer Circuit
In this post I have explained the construction of a car air ionizer circuit which can be used for cleansing the atmosphere of car interior from smoke, pollution, dust particles, bad odor, pollen particles etc. The circuit was requested by Mr. Edalcor Zuproc. The Circuit Concept In one of my previous posts we saw how simply a home air […]
Upgrading Car Parklights to Enhanced DRLs
In this article I have explained a simple circuit idea which can be applied in order to convert existing car park lights into advanced, smart DRL system. The idea was requested by Mr. Chris. Technical Specifications I was very interested in reading the circuit diagram you posted a few months back regarding the ‘Smart DRL/indicator […]
Car Radiator Hot Indicator Circuit
The proposed circuit is very useful which warns the car driver before hand once the radiator gets heated up above the preset level. How it Works The working of this circuit is very simple and works off on the car battery. The familiar IC555 is used here which is the heart of the circuit. The […]





