Power/failsafe LED

[stu]

On the topic of LEDS - is there any simple way for me to add a LED to my robot which only turns on when my robot has SIGNAL from the TX?

Mr Stu

(Before some people shower me with concerns, i would have 2 LEDS. One to let me know theres power to the robot, and one to let me know if their is signal to the robot. Both would go out when the link is removed.)

[typhoon_driver]

sorry i that some people may have misunderstood me.........

basically i was saying i dont believe there is any point in our robots having an LED because of the sheer fact that it can be seen easily if our robots are active due to the fact that the link is at the bottom on the flag, hense anything in the central shaft, means the robot is very dangerous, something not there, safe. This is how we have always treated our robots. We will of course fit an LED because of the rule however we feel that on our robots it isnt especially needed due the specific nature of its design.

[_jl_]

You could just connect a led & resistor on one of the channels, this will blink (too fast for you to see) if SIGNAL, off otherwise.
But, this is likely not what you want, since it will only show if there is a signal, or not, not if your failsafe has kicked in properly.

EDIT: Because of the previous post, am I to belive you have a PCM system? If so, it will obviosly not work.

[jamesb]

Gary, why not put a PP3 pattery in the link with an led attached. it never switches off, but as you are physically removing it from the robot when you pull the link its not viable anymore

[typhoon_driver]

ye we would put an LED in the link and that is a clever idea james but well see how we do it, currently its not a major issue with us

[fluppet]

Gary: Of course, make it bright enough and you can see whether the flag is in from the other side of the pits without having to squint. :-)

(Of course, RAF sight tests might mean you never have this problem, but for us mortals...)

--
Fluppet

[babeth]

Gary, dont planes carry lights ? Should have been obvious... :wink:

[typhoon_driver]

lol guess we could shove the light they have on the nimrod......

if my mind serves me correct it has the same power as 2million candles and burns out unless the plane is flying to cool it down.