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This is a photoelectric switch control of the music box Kits, You can put it in the hallway; store counters, and when people passing through optical switch box. Music chips will be automatically triggered, and played out by the horn sounding voice.
Music will stop playing after a few seconds. And wait for the next time the trigger.

The photoelectric control music box circuit is very simple, Very suitable for you spare time to learn and diy it. Also very suitable for training programs and technical schools for lessons.

Support wholesale.
More amateur homemade electronic kit package, please contact us.
Applies only to schools skills training and enhance the study and practice.
Categories: Development Tools
Retail price: $5.000
Shipping Weight: 1g
Manufactured by: CHINA
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Min:  2

This products date added: Wednesday 19 September, 2012 - Updated: Tuesday 14 May, 2013.

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