Car warning lights circuit
The SN75604, with input control logic but requiring only one supply rail, can be used in the "lights on" sensor and alarm driver. The device Vqq and enable inpu...
Wiper speed controller
The relay which applies power to the wiper motor is actuated at periodic intervals by the timer circuit, closing the wiper motor contacts. Potentiometer R1 serv...
Car Wiper-Speed Controller
This 12V wiper speed controller circuit uses the 555 timer. Its one of those very easy and usefull circuits!...
Car Voltmeter Circuit
This screen uses ten LEDs to display a voltage range of 10.5 to 15 volts. Each LED represents a step 0.5wvolt tension. The heart of the circuit is the 3914 poin...
Model Glow Plag driver circuit
model airplanes, boats, cars and use of ignition of glow plugs for their miniature (O. Bcc to 15cc) internal combustion engines. These engines happen with the h...
CAR IMMOBILIZER CIRCUIT
A flip of 51 puts the system in action. Power for the circuit is captured from the ignition switch, and circuit receives no power until the ignition switch is c...
Car windshield wiper delay
The circuit provides a windshield wiper delay, dynamic braking and windshield wipers when they reach the rest position. This prevents the blades passing, which ...
In-Car lights delay circuit
This circuit switch slowly on and off the internal lights in a car.
The delaying time can be adjusted changing the values of the 10k, 4M7 resistors and capaci...
LED Battery indicator
This battery allows the indicator to the car battery voltage monitor. The indicator has four LEDs which indicate power. The more LEDs, the higher the voltage. T...
Automotive voltage tester schematic
This is a simple spanniningszoeker that is very suitable for car, for connection of alarm systems, handsfree kits, radios, etc. At rest, the yellow LED because ...
Car Analog tachometer circuit
This is a nice design for people who have no tachometer in the car or on the bike have. The circuit uses two ICs: an NE 555 and a CA 3140. The input of the circ...
Automotive ignition coil
Here's a circuit to create a buzzcoil using a standard automotive ignition coil. A 556 dual timer is used to establish the frequency and duty cycle of the coil ...
Capacitor Discharge Ignition
The CDI ignition circuit produces a spark from an ignition coil by discharging a capacitor across the primary of the coil. A 2uF capacitor is charged to about 3...
3 LED Car battery Indicator
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 ...
Multi-spark 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 Light Dimmer 12 Volt
This unique circuit makes your dome light look cool. Usually when the car door is closed, the dome light just goes OFF. With this circuit, you can have our dome...
Car Wiper Controller
A continuously working wiper in a car may prove to be a nuisance, especially when it is not raining heavily. By using the circuit described here one can vary sw...
Car tv cronograph
This design is based on the video DVM design. Furthermore, it adds support for color, so you will get red and green semaphore lights (as those in formula 1) an...
Car Parking Sonar
Tihs circuit has: automatic switch on on rear gear. led-bargraph display. audible bleep on last led. "good old" design style, no microcontrollers! Based on an u...
Car Windscreen Loop Antenna
If you do not like the whip antenna on your car, you may try this alternative circuit. A one-turn loop is installed in the windscreen of the car, keeping possib...