Car brake Light
What's so special about this circuit? Well, the first third-brake light I installed I had to pull a wire from the
Third Brake Light all the way underneath t...
Car Stop Light Switch Circuit
When the brake pedal is on depressed, battery positive voltage normally applies through the STOP fuse and stop light switch to terminal STP of the ECU, and the ...
Car Ignition Coil Driver gives 15kV
This Spark Can Be Very DANGEROUS, So BE CAREFUL. WARNING: FAILURE TO DO SO: WILL CAUSE THE CASE OF THE COIL TO ALSO BE ELECTRIFIED! NOTE You MUST have a LOAD on...
Car rear Stop Light Flasher
When we step on the car' s brake, then together with the classic rear STOP ,the third STOP which is situated in the middle of the back half of the car also swit...
LED Voltmeter for Cars
The circuit, is a comparator, can measure with step of 1Volt, the voltage of battery of car. The clue of voltage become after comparison of voltage of battery, ...
Car Parking helper
A simple but useful circuit for all they have problem with parking car, in spaces without good visibility. The electric circuit appears in picture 1. It is con...
Car lamp failure detector
In Fig.1 see a DC current ? sensing switch, in which the current is applied from an 8 to 16 Volt supply. The R1 value is chosen so that it generates roughly 100...
Car central Light Dimmer
A useful operation for the cars is delayed extinguishing internal lighting cabin of passengers, after close some door of car. Certain cars allocate this operati...
Car Controller using PIC16F870
Our present car controller runs on a single PIC16F870 micro and provides functions for remote door locks, headlight reminder, and car finder. It is constructed...
Fan Controller with PIC12F675
This device acts as a variable speed control for the heater blower in a car. It takes its power directly from the existing wiring and connects with just 2 wires...
Bike LED Tachometer
Its based on inductive pickup and very easy to install. Have a look at the pic. (remove LED and connect transistor collector to pin4). I hope it will exactly su...
Car water Temperature monitor
The Car Temperature Gauge is basically the same circuit as March's project with some minor changes to the input circuit. This circuit will display the water tem...
Digital Car Voltage Meter
The Car Voltage Gauge is based on 3 parts. The input circuit is an Analog to Digital Converter (IC2 CA3162E). The purpose of this chip is to sample an analog vo...
Headlight Flasher with 555
is circuit was requested from an email. It will allow your car headlights to flash on and off at the same time or it will cause them to flash alternately. The c...
Motorcycle electronic Gear Indicator
This is a new design for a universal gear indicator that can be fitted to any motorcycle as an aftermarket accessory. Its main advantage is that its operation d...
Motorcycle electronic Gear Indicator
This is a new design for a universal gear indicator that can be fitted to any motorcycle as an aftermarket accessory. Its main advantage is that its operation d...
Multi-spark module for Electronic Ignition
Multi-spark ignition is very useful especially in the case of startings at low temperature and at low rpm range. Basic idea, is to apply to spark plugs instead ...
Car battery tester with LM3914
This circuit uses the popular and easy to find LM3914 IC. This IC is very simple to drive, needs no voltage regulators (it has a built in voltage regulator) and...
Car battery Indicator (BC548)
The operating principle of the circuit is very simple. The first Led D1 is placed in series with the resistor R2 and diode D4.An only be lit this LED indicates ...
Car battery Indicator (BC548)
The operating principle of the circuit is very simple. The first Led D1 is placed in series with the resistor R2 and diode D4.An only be lit this LED indicates ...