Connecting A Laser Module to Arduino

[polonos13]

Hi everybody !

I've just received my parts (laser modules and cds photoresistors) for building a laser harp.
Can anyone help me on how to connect the laser modules with arduino and see them working ?
The lasers i have are the following :
Laser Module - Green - SparkFun Electronics
and the photoresistors
Mini Photocell - SparkFun Electronics

 

[udanis]

This should help oodles:
Inventgeek.com - Laser Instrument - Overview

 

[polonos13]

Thanks Udanis but i've already found this site and i really didn't understand the circuit for the laser modules

Because i am completely amateur i don't understand what exactly are the parts in the red circles on the circuit.

 

[udanis]

Seems to me that the laser diodes just get attached the leads with the correct out put voltage, being that they don't need to send back data to the board like the photocells. On the bread board picture the laser diodes are just connected to the positive and negative source

 

[udanis]

Thanks Udanis but i've already found this site and i really didn't understand the circuit for the laser modules

Because i am completely amateur i don't understand what exactly are the parts in the red circles on the circuit.

View attachment 30449

Referring to the picture, if you don't know what an led is (the round thing circled at the top) this project might be a little ambitious for you.

 

[polonos13]

I didn't regognise that this was a led....
Can you give me some advice on how to set to on the laser diodes.I don't want to use batteries.For your concern i have a Pc power supply.Is there any possibility to connect them to the PSU and have them working

 

[udanis]

I didn't regognise that this was a led....
Can you give me some advice on how to set to on the laser diodes.I don't want to use batteries.For your concern i have a Pc power supply.Is there any possibility to connect them to the PSU and have them working

What?

If you power supply output a voltage (do you know what voltage is?) that is with in the specifications of the laser module then yes. If you are using a laser diode you must you a driver for the laser.

 

[polonos13]

I've managed to get the laser diodes working.

It was as easy as you said udanis

The only thing i had to do was this



Next step is to connect the photoresistors to arduino.

Can you tell me if the picture below is correct ?

 

[udanis]

Looks like in this picture

They have the one lead positive and the other goes in two directions, one to the arudiuno and the other to the resistor.

 

[polonos13]

This is one video with my work so far.I hope i can find an easy solution to produce midi sounds via arduino.

http://www.youtube.com/watch?v=S_mzaV2JG_M

 

[grot]

no Arduino Source in the link.... mmmmmm

have you it?