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Grounding the blue wire at the headlamp switch causes the lights to illuminate, indicating a faulty switch. Continuity of the switch has already been verified. The relay consists of two small terminals and two larger ones. The smaller terminal,...
Typically, home appliances are controlled using switches, sensors, and similar devices. However, physical interaction with switches can pose safety risks in the event of a short circuit. The circuit outlined here eliminates the need for physical contact to operate...
The following diagram is for the main circuit of the motor driver. A testing version is shown near the end of this page. It is laid out differently and shows the SN7474 in logic block form and LEDs are...
The article describes a simple and very cheap to drive white, blue or UV LEDs, used for example in small lamps and testers. The cost of components shall not exceed CZK 10. Converters for white LED has been on...
This is a basic dark and light sensor that uses a photoresistor as the sensing component. The transistor functions as a switch; when the switch is in the "on" condition, the relay will be activated. The potentiometer adjusts the...
The following circuit illustrates a servo motor driver. This circuit is based on the 12F675 IC. Features include Timer 0 timing and a single control line. The servo motor driver circuit utilizing the 12F675 integrated circuit (IC) is designed to...
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