IR Detector

Step 5: Put it all togother

First take the Fototransistor,bend it (picture 1) and solder it. (picture 2)
Now take the LED and solder ti. (picture 3)
Take the resistor and connect the negative(shorter) pin of the fototransistor and the positive(longer) pin of the LED whit the 330 Ohm resistor,(picture 4) and cut the pins.(picture 5)
Solder the switch in between, a little bit down.
Now take the 9V battery clip and cut it about the lenght so that you can connect it to the switch and the fototransistor. Save the black wire from the battery clip because you are going to need it.(picture 6)
Connect the black wire from the clip to the switch, and the black wire that you saved, from the switch to the negative(shorter) side of the LED.(picture 7)
Connect the red wire to the remaining pin,the positive(longer) side of the fototransistor.(picture 8)

Comments

[aviksaras]

is it necessary to use only that fototransistor? i have used a cheaper one it is a sensor the shopkeeper told it little bit works like IR sensor

[comodore]

You have a big variery of them so I am just going to say that most of the cheap ones will work just fine...

[jules15]

i did this, it didn't work..

[comodore]

Mr Android
You must have soldered something wrong, or wired the phototransistor or LED the wrong way...
or maybe you just have a cold solder connection.
This is a very simple project and it was tested over and over again and proven that it works!

Thank you!

[northconnor]

I thought that was pretty good for someone who doesn't speak English...

[comodore]

Thanks  :P

[neardood]

Just a bit of advice, use the spell check option, cause reading that many unintentional mistakes on one page gets annoying

[DYLEGO]

al i c is 3 speling mestakes adn teh fototransistor mestakes sorry i had to so that!

[comodore]

My native language is not English so....

[DYLEGO]

had to DO that

[comodore]

My native language is not English soo...

[munchman]

Yeah, you kind of went back on yourself with that one.