??? 08/04/05 13:25 Read: times |
#98811 - simple and cheap Responding to: ???'s previous message |
Jacob Boyce said:
If you just need to detect light, then you need an optotransistor connected to the 8051. Do you need to detect the intensity of the light?
Jacob Only if it`s daylight or dark. No intensity detection. The solution from Andy sounds interesting because I have some light resistors left. I want to build it realy simple and cheap.. at only one I/O pin. I will look out for a good schematic. |