Help me build a motion detector using pyroelectric sensor

[adick]

motion detector

I'm planning to build a motion detector using pyroelectric sensor.
any suggestion?

 

[jshroff]

Re: motion detector

Check out this circuit at https://circuitos.tripod.cl/schem/r17.gif

Also attached is a PDF for another circuit

 

[IanP]

Re: motion detector

More economical would be to use of-the-shelf security infrared sensor (with Fresnel lens) ...

 

[silent trigger]

Re: motion detector

Good information ! Where is selling the Fresnel lens ?

 

[angie-filt]

Re: motion detector

Hi

Fresnel lens are usually selled with infrared security sensors because they are parts of them.

Angelo.

 

[jojokatada]

Re: motion detector

Good information ! Where is selling the Fresnel lens ?

check at digikey website or mouser

 

[fuat_09]

Re: motion detector

good schema.easy made

 

[nikhilele]

motion detector

one of the nice chip is kc778b which is good for this task