ir receiver toggle switch circuit

Day and Night Infrared Detection circuit

The following is a method to allow day and night detection using Infrared/Visible light sensitive phototransistors and a simple LM339 voltage comparator circuit. A phototransistor is mounted between the rails so that it is covered by the train as it...

Infrared Proximity Detector Alarm

This circuit can be constructed using readily available, low-cost components, some of which may even be found in a junk box. The specified value of 22 for resistor R1 results in an average current of approximately 65 mA flowing through...

Infra-Red Level Detector

This circuit is beneficial for liquid level detection and proximity sensing, with a range of up to 50 cm. It also features optional relay operation. The circuit operates on the principle of capacitive sensing or ultrasonic distance measurement, allowing it to...

tv remote control jammer

This circuit disrupts the infrared receiver in a television by generating a continuous signal that interferes with the signals from a remote control, thereby preventing the television from detecting channel changes or other commands. This allows for uninterrupted viewing of...

optically coded key

The optical key functions as an infrared door opener for homes, garages, and similar applications. Diagram 27.0 represents the key, which is a transmitter module that emits a modulated infrared (IR) beam. The modulation frequency can be adjusted using P1....

Infrared Remote-Control Tester Circuit

The infrared remote-control tester employs a sensitive PN-type solar sensor directly connected to a Darlington amplifier composed of transistors Q1 and Q2. Biasing is achieved through resistor R1 and PI, a variable resistor that functions as a sensitivity control. The...

DIY kinetic energy harvester

A DIY kinetic energy harvester utilizing the electromagnetic method to generate electricity. The materials that will be used are currently known. The project involves creating a kinetic energy harvester that converts mechanical energy from motion into electrical energy through electromagnetic induction....

Infrared IR Illuminator DIY

An infrared illuminator can be constructed at home with minimal effort, requiring only basic knowledge of electronics. The circuit is straightforward, utilizing 68 Ohm, 1 Watt resistors. Infrared LEDs are readily available at most electronics stores. Users have reported that...

General Infrared Remote Controlled Relay

This relay circuit is controlled by nearly any type of infrared remote controller. The circuit operates under the assumption that most remote controllers utilize high-frequency signals. The relay circuit described functions by receiving signals from an infrared (IR) remote control, which...