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Where to connect +ve and -ve on laser module? Pics attached Answered

Hello, I wanted to ask you that where should I connect +ve and -ve of 3V-4.5V on the laser module, and one more thing, can I connect the Laser Module to 9v battery? Thanks in Advance. Pics attached

Tags:Laser

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Rahul - S
Rahul - S

4 years ago

Luckily same laser was used in my "Arduino shooting game"

The outer case is -ve while the connection at switch is +ve. If you want to use switch, then connect +ve to the spring.

IMG_0939.JPG
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Rahul - S
Rahul - S

Answer 4 years ago

Or you can check polarity by checking how batteries were installed earlier. means which side of battery was in touch with the spring +ve or -ve. It was +ve in my case.

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steveastrouk
steveastrouk

4 years ago

Case of the diode is usually one of the connections, the spring is the other. What way are the batteries ?

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iceng
iceng

Answer 4 years ago

+1

I'm sure you would advise that a 9V will destroy a 4.5V laser.

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iceng
iceng

4 years ago

I have one.

connect2.JPG
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iceng
iceng

Answer 4 years ago

Sorry,

Click the pic to see the entire image