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| Two Channel Switch : Transmitter |
| The 555 oscillator connected to the diodes is set to oscillate at the correct frequency for the I.R. receiver module to be used. The second oscillator modulates the first oscillator at a frequency of a few hundred Hertz. By varying the frequency of the modulation, we can change the "channel". |
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| Vero diagram |
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Single Channel Switch
Two Channel Switch
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© David Hoult 2009
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