RCCrawler Forums

Greatscott

I am looking for a LED blinker circuit... sort of.

I am looking for device that passes LED power in a steady state normally, but when a trigger signal is sent, it will make the LEDs blink.

The drawing below shows what I am after:
• The battery powers the BEC
• The BEC passes voltage to the relay, and the blinker circuit
• When the relay is off, the LEDs down stream of the blinker circuit do not blink.
• When the relay is energized, it passes voltage to the blinker circuit's trigger, and the LEDs blink.
• When the relay is turned off, the LEDs go back to steady state.
-- The LEDs I am using have a voltage range of 4-12VDC with their own resistors, so a LED driver isn't required. There will likely be around ten 5mm LEDs.
-- Both high and return are represented by the same line
-- The relay is powering other things, and is not part of the blinker circuit assembly (or could be, depending of it is off-the-shelf or custom built. The relay would have two more pole in addition to the two for the trigger line).
-- Likewise, the BEC is its own component, and not integrated into the blinker.

Does a this unicorn exist?

LED Blinker Controller by Scott O, on Flickr


What is this for?
I am working on a RC conversion of a Burder semi trailer. On this trailer I have fold-up ramps and a winch, along with retractable landing gear. I want to be able to switch between the winch and ramp linear actuator with a remote (already in hand). With the relay off, the power will go to the ramps, and the trailer lights will be solid. When the relay is turned on, the winch will be selected, and the lights will blink. The landing gear have their own controls on the remote.