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adrian120 said:I'd like to build a caller id circuit to connect to my telephone line. Anyone know if there are any of these projects?
adrian120 said:i'm in the uk
adrian120 said:maybe you could give me some info on a IR filter? i need a filter to block out ambient light and sunlight for a ir photo diode. looked at maplins and rs no luck, found a internet site but that was quite expensive. your input would be helpfull, thank you.
adrian120 said:i'm am using this circuit as a remote extender from one to room to control a satalite box for tv in another room. LED1 in the circuit in a normal LED which when recieves a signal via the photodiode (sfh2030) will flash. LED1 stays on all the time unless it is in near darkness, thats why i need some way to filter out unwanted light. LED0 is the ir emitter diode.