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  1. - 8th December 2010, 23:40 #33
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    LEDave
    LEDave is offline Senior Member
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    Have got the night time trigger to send the Visits_total over from the TX to RX working.

    It works on a 555 timer chip instead of an op-amp Schmitt trigger (very handy same voltage for 555 & PIC).The cct dia is below(see attachment). Only needed to add an ORP12 - LDR and a 10k resistor across the input, might have to tweak the resistor value but works a treat with my hand acting as approaching darkness.

    Another step forward.

    Dave
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