This heightens the car’s presence and increases awareness. The additional segments increase the car’s running visibility at night and enhance the brake lights both day and night. This feature allows all three middle elements to work as both running lights and brake lights. The board features enhanced brightness where the three middle red segments of the DeLorean tail light lens are fitted with dual element lighting. It adds programmable turn signal and emergency flasher sequencing as well as a special parade mode animation. We hope that you’ll love this circuit and you’ll have a lot of fun.Manufactured by Drayron LLC, this sequential tail light kit is a drop in replacement for the DeLorean tail light board with no modification to the car or wiring required. A friend told us, that it uses the circuit in his car for emergency break lights, and another one, told us that it uses the circuit for emergency rear lights on his bicycle. Please, watch our demonstration video on youtube and see the old wall clock, which has now a new fancy look.īesides its simplicity, the sequential led flasher can be used in many ideas. The entire circuit of this LED running light may be fitted in a nice looking enclosure with the LEDs projecting out of the box.Īfter building the prototype, we had a nice idea, to embed the circuit in an old wall clock. Except for the components, one wire bridge is also required to be soldered at the specific pads, indicated on the composite drawing. The circuit can be assembled by simply soldering all the components at the provided circuit board. The construction procedure is quite simple, given the single sided PCB which we provide below. The required supply current is less than 40mA. Normal values for R3-R12 are 220Ω, 330Ω and 390Ω for 5V, 9V and 12V power supply, respectively. Modifications include altering the values of R3-R12. With minor modifications, the circuit can also be powered from 5V or 12V power sources. The simple sequential LED flasher can be powered from a 9V power supply unit, or a battery may be used. The frequency of the oscillator can be adjusted from R2 potentiometer. Here, we use an astable multivibrator which is based on the popular IC 555, and produces a square wave. There are unlimited options to get an oscillator configuration using ICs like 4060, 4093, 555, 741, transistor mutivibrators etc.

The speed of shifting or the sequencing of the outputs is directly depended on the frequency of the input clock signal. A flashing “dot” runs from start to finish and the sequence is repeated infinitely. There are 10 LEDs connected to the outputs and the above sequence gives a running or chasing effect. Each output goes high in turn, as counting advances. The outputs become high in sequence such that one output becomes “high” immediately after the previous one becomes “low”. The normal functioning of the IC4017 involves sequential shifting of its outputs 1 to 11, in response to a clock signal applied at its pin #14. We think that the specific circuit can be an ideal starting point for beginners in electronics. A potentiometer is used for frequency adjustment. The clock signal is generated from an astable multivibrator circuit, which is based on the popular IC 555. The speed of shifting is directly depended on the frequency of a clock signal. This is a simple sequential LED flasher (sequentially left to right), which is based on the popular Johnson's Decade Counter IC 4017.

Sequential tail light kit