Jameco LM555 Инструкции

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Simple IR Remote Switch 4017IC & LM555

PART NO. 2223531

Built on a breadboard or can be soldered onto a PCB, this circuit contains a 555 timer and 4017 IC for easily switching on or off

projects/triggering projects using almost any IR remote (the one in the picture is a camera IR remote). The 555 is in mono-stable mode,

filtering out the pulses from the IR receiver coming from the IR trigger remote, then feeding a pulse into the 4017 clock input to switch

the output high from pin 2 & 3 every time the 555 sends a pulse.

Using this information, this circuit can be adapted by moving 1 wire (removing the wire that connects pin 4 to reset) to make a 10 pin

switching output, this cycles through the 4017 IC's outputs with every pulse from the 555)

You could also connect a transistor and relay together on the high output where the led would be to create a higher current switch for

turning on/off projects.

FYI: Once the circuit has power connected over ~6.5V the output of the 4017 will flick between the on/off positions because the photo-

transistor is rated at 5V, this is why a 5V regulator is included in the circuit.

Time Required: 30 minutes depending on experience

Experience Level: Intermediate

Required tools and parts:

-Wire

-IR remote control from a TV, camera, stereo, or other electronic device (will work with ranges around standard 940nm wavelength)

-9V battery

-If not building breadboard version, which is included, soldering tools and PCB

Bill of Materials:

Qty

Jameco SKU

12749

973646

2109801

333227

690865

691104

29891

1913995

786138

11280

690742

333973

Component Name

CD4017

lM555CN

Mini Breadboard

Green LED

1kohm Resistor

10kohm Resistor

10uF Capacitor

IR Phototransistor

5 Volt Reg.

9V Battery Snap

330ohm Resistor

Red LED