Light dependent blinker using LDR and CD4093

Here’s a simple experiment with LDR and CD4093. This is just a modification of a previous project “dark sensor using 2 transistors”. In this project, the CD4093 is configured in such a way that whenever you block  light falling on LDR, the circuit starts blinking the LED D1.

The flasher circuit does not get power till there is enough light on LDR. The CD4093 circuit gets power via emitter of Q2- BC547 when you block light falling on LDR. (more…)

How to use infrared module with Arduino

infrared module with arduino (1)

This project is similar to the following projects:

1. ON and OFF LED using infrared sensor

2. PWM experiment using infrared sensor

For this particular and the above listed experiments, you need this library: arcfn.com/files/IRremote.zip

See the following image to know how to fix the infrared sensor on the breakout board.

http://arcfn.com/files/IRremote.zip#sthash.wIx2Q2Mr.dpuf
http://arcfn.com/files/IRremote.zip#sthash.wIx2Q2Mr.dpuf
http://arcfn.com/files/IRremote.zip#sthash.wIx2Q2Mr.dpuf

infrared module with arduino (4)

Datasheet of HX1838

CHECK OTHER IMAGES

Use the three dupont wires to connect the breakout board to your Arduino.

VCC pin on the board- goes to VCC of Arduino

GND pin on the board- goes to GND pin of Arduino

IN pin on the board – goes to digital pin 2 of Arduino

And a connect an LED to digital pin no. 13. As you press a remote control directing to the Infrared sensor, the LED will be switched on and off.

Upload the following sketch on to your Arduino:

LINK

VIDEO:

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