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Unread 11-04-2008, 15:13
de_ de_ is offline
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AKA: Dave Edwards
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Re: Can Relay Outputs Directly Drive LEDS ? (for testing)

Just so you know, the following was posted in IFI forum for the RC.
(Again, this was for just a table top test setup, not for the actual robot).

Yes, it is possible to drive LEDs directly from the Relay FWD / REV Outputs. Connect the anode of the LED to the FWD or REV Output. Connect the cathode of the LED to ground. The outputs can sink and source at least 8 mA. There is a 330 ohm series resistor between the VHCT logic outputs and each the FWD and REV header posts. Assuming the LEDs you are using can handle 15 mA of continuous current, direct connect them as described above.
 


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