Infrared ‹ BUILD CIRCUIT

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Infrared sensor with PWM

May 20 in Arduino Written by: Sagar

Description: In this project, Arduino first encodes the remote signals and decodes them to control LED brightness. First of all, connect the Infrared sensor as shown in the picture below. Then, press keys 0 through 4; Arduino stores the values for keys 0 through 4 and when the sketch runs, key 0 turns off the LED and the brightness of the LED increases in steps when keys 1 through 4 are pressed. Connect LED to PIN 9 and connect output PIN of Infrared sensor to PIN 2. HOW TO USE INFRARED...

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Infrared tester using Arduino and TSOP 4838

May 20 in Arduino, Recent Written by: Sagar

Description: This project lets you know about Infrared. The LED connected on pin 13 of Arduino toggles each time a remote button is pressed. It should work with normal TV/VCD remote.Before you make this project, I strongly recommend you to make a basic remote tester with some basic electronic components. This is the fundamental circuit for controlling your home appliances. For controlling home appliances operating at 220V, you need to connect a relay in place of LED. HOW TO USE A RELAY? For...

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Infrared based music transmitter and receiver

May 08 in Basic Electronics, LDR Engineering, MINI Breadboard, Recent Written by: Sagar Sapkota

Description: An infrared based music transmitter and receiver is made up of three different modules. Test these three modules before you make this project. An audio amplifier Dark sensor using 741 Melody generator using UM66 You can make this project using phototransistor as well as photodiode. Follow the following steps: a. Make a melody generator using UM66 and replace the speaker with infrared LED. b. Remove LED from the 741 module and connect with Audio amplifier. c....

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RC module

May 08 in Basic Electronics, LDR Engineering, MINI Breadboard, Recent Written by: Sagar Sapkota

Description: An RC circuit is used to introduce time delay in circuits. A combination of resistor and capacitor gives a time constant. The following circuit shows a basic RC circuit. In the figure C1(100uF) works as a storage capacitor. When you press the switch, the capacitor charges quickly and provides base current to the transistor Q1, that results in collector current and that glows the LED D1.. The resistance R2(1K) provides a time constant of around 10seconds. After 10seconds, the base...

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Basic remote tester

May 07 in Basic Electronics, LDR Engineering, MINI Breadboard Written by: Sagar Sapkota

Description: This circuit can be used for testing your TV, DVD, VCD, etc. remote control. This is the fundamental module for making infrared based object counter. This project has been derived from "Remote tester project" . DATASHEET OF TSOP4838 According to the datasheet of TSOP4838, the input voltage to IR sensor should be 3V-5V. When the sensor gets infrared signal, the voltage at its VO pin drops and that triggers the BC557 transistor. At each trigger signal, BC557 glows the LED....

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MINIBREAD

May 03 in Basic Electronics, LDR Engineering, Recent Written by: Sagar

MINIBREAD is a simple technique of making electronic projects on mini breadboard. BuildCircuit presents several MINIBREAD projects on minibread.org. The site is owned and operated by me (Sagar Sapkota). I have published basic electronic projects keeping electronic amateurs and students in mind. In MINIBREAD, big projects are broken into small circuit modules and made on mini breadboard so that we can understand big electronic projects in modules. Please write your comments on MINIBREAD. Some...

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How to use UM66 or BT66 Musical IC

Jan 28 in LDR Engineering Written by: Sagar

The following schematic is for UM66 or BT66 musical IC. You need very few components to make this circuit. Pin configuration for UM66 is given below: Zener diode rated 3.3V maintains the required 3.3V for UM66 IC. The output from Vo of UM66 is amplified by BC547 transistor. Click on the video to see the output

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Remote operated musical bell using UM3481

Jan 16 in LDR Engineering Written by: Sagar

This article is about remote operated musical bell using UM3481. The M348X series IC is a mask-ROM-programmed multi melody generator , implemented by CMOS technology. It is designed to play the melody according to the previously programmed information and is capable of generating 16 songs with 3 instrument effects : piano, organ and mandolin. The device also includes a pre-amplifier which provides a simple interface to the driver circuit. The M3481 series is intended for applications such...

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Test UM3481 musical circuit

Jan 16 in LDR Engineering Written by: Sagar

The M348X series IC is a mask-ROM-programmed multi melody generator , implemented by CMOS technology. It is designed to play the melody according to the previously programmed information and is capable of generating 16 songs with 3 instrument effects : piano, organ and mandolin. The device also includes a pre-amplifier which provides a simple interface to the driver circuit. The M3481 series is intended for applications such as toys, door bells, music box, melody...

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Light operated switch

Dec 18 in LDR Engineering Written by: Sagar

To make light operated switch, you need to know these circuits: a. Toggle switch b. Dark sensor using two transistors c. How to use a relay - You need to keep LDR in dark case so that the relay remains active all the time(Pole connects to NO). - When you put light on LDR, the relay switches off and Pole connects to NC; this operation toggles 555 timer and switches on the LED D1. -When you put light again on LDR, LED D1 switches off. Fig. Light operated switch (Click...

Infrared

Infrared sensor with PWM

Infrared tester using Arduino and TSOP 4838

Infrared based music transmitter and receiver

RC module

Basic remote tester

MINIBREAD

How to use UM66 or BT66 Musical IC

Remote operated musical bell using UM3481

Test UM3481 musical circuit

Light operated switch

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