|
|
|
 Now stop reading CD, do your homework, eat your peas, brush your teeth, and go to bed. Any time you spend speculating as to what Dave's ravings might mean is completely wasted. - Richard Wallace [more] |
 |
|
|||||||
|
||||||||
|
|
Thread Tools | Rate Thread | Display Modes |
|
#1
|
|||
|
|||
|
Can Relay Outputs Directly Drive LEDS ? (for testing)
All 8 relay ports are in use this year (that's a lot of Spikes & PWM cables !). We like to test our software out first on a table test board as much as possible. We would prefer to not have to dedicate 8 more spikes and pwms just to have visual confirmation of the state of the relay outputs.
If I read Kevin Watsons CPU to RC I/O mapping chart and the CPU spec also posted by KW, it appears each pin might be able to provide 25ma, enough to power a led (with an appropriate dropping resistor). We would probably limit it to 10-15ma (just enough to see reliably). Anyone one know for certain this is doable or more importantly if its a bad idea ? I would hate to blow our test RC. (We asked Innovation First but did not hear back.) |
| Thread Tools | |
| Display Modes | Rate This Thread |
|
|
Similar Threads
|
||||
| Thread | Thread Starter | Forum | Replies | Last Post |
| Using Kevin's PWM outputs for a quieter drive system. | PhilBot | Control System | 20 | 09-03-2008 16:10 |
| Driving LEDs straight from Relay outputs | skippy178 | Electrical | 4 | 16-02-2007 15:13 |
| relay and pwm outputs | nick_champ_2 | Electrical | 1 | 31-01-2003 13:08 |
| Relay outputs on rc | jdawson | Electrical | 4 | 26-01-2003 12:51 |
| Relay Outputs | OddOne | Technical Discussion | 3 | 01-02-2002 19:52 |
Threaded Mode