I'm planning to build a circuit that sense light from an Optical output on the TV and then Trigger a 5V output and at the same time light-up the LED. If there is no light, the Trigger output will be zero volts. The active 5V will tell my other device the status on my TV if it's ON or OFF.
Please comments if i have it right or if the output really a 5V or less?
Feel free to edit if you think a better way of doing it will less parts.
Any suggestion on the part number of Photoresistor i can use, say from local store, eg. Radioshack or Fry's Electronics?
Thank you in advance.
Please comments if i have it right or if the output really a 5V or less?
Feel free to edit if you think a better way of doing it will less parts.
Any suggestion on the part number of Photoresistor i can use, say from local store, eg. Radioshack or Fry's Electronics?
Thank you in advance.
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