This remote transmits a tone using an infa-red LED. This tone is decoded by the receiver. Since the receiver only switches when it hears the tone, there are no accidental activations.
Parts
Part Total Qty. Description Substitutions
R1 1 22K 1/4W Resistor
R2 1 1 Meg 1/4W Resistor
R3 1 1K 1/4W Resistor
R4, R5 2 100K 1/4W Resistor
R6 1 50K Pot
C1, C2 2 0.01uF 16V Ceramic Disk Capacitor
C3 1 100pF 16V Ceramic Disk Capacitor
C4 1 0.047uF 16V Ceramic Disk Capacitor
C5 1 0.1uF 16V Ceramic Disk Capacitor
C7 1 1.5uF 16V Electrolytic Capacitor
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