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  • Committer: Tim Marston
  • Date: 2013-11-21 00:05:58 UTC
  • Revision ID: tim@ed.am-20131121000558-06xtcb4fue72td7q
updated 8-channel pulse width reading test program's comments

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test/receiver/pulse-width-x8/main.ino
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//             R                    |    |                     R
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//             ____________________ | __ | _____________________
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//                                  |    |
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//                           pin 2  o    o  pin 3
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//                    (interrupt 0)        (interrupt 1)
 
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//                  (int. 0) pin 2  o    o  pin 3 (int. 1)
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//
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// The two resistors in the circuit are pull-down resistors (so, say 100kΩ).
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// Without them, the Arduino is unable to read the pulse wave at all.
 
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// The two resistors in the circuit are pull-down resistors.  Without them, the
 
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// Arduino is unable to read the pulse wave (I guess because of the diodes --
 
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// it's fine without them!).
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//
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// (Note that on our receiver, and contrary to the above diagram, the channels
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// are not actually sent in order.  Channels 2 and 3 are reversed.  To this end,
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}
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static int count_ = 0, good_ = 0;
 
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bool read_channels( unsigned long channel_values[] )
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{
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        static unsigned long last_pulse_down = 0;