problems in circuit... anyone can help?
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作者:julian_hee (等级:2 - 初出茅庐,发帖:25) 发表:2004-09-05 20:43:29  楼主  关注此帖
problems in circuit... anyone can help?
i need to construct a circuit to meet the following specifications.

First, a sensor sense the light and it will cut off the motor. Also, i need a latch so that the motor will remain off even the sensor is no longer sensing the light. To be more detailed, the sensor and relay is powered by a 9V battery.


Anyone has idea how to come out with a circuit as to do the above functions..
Thks lots!! Sgchat_03@yahoo.com.sg, u can email me if you know this prob or u got any url regarding this information..

I appreciate much.. thks.
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