RagingGrandpa Posted January 28 Share Posted January 28 For future reference: Cable circuits (3): Always-on +5V; PWM signal; Ground. 1/8" TRS jack connector. Tail lamp modes (2): Active; Off. Control is from the EUC power button short-press. Laser modes (4): Force-on: a latching switch inside the tail lamp provides full-brightness always-on lasers. Breathing / Blinking / Off. Control is from the EUC light button long-press. Laser diodes run at ~3.1V, regulated within the tail lamp. LED's are actually RGB, but it seems the EUC only sends them a red color command. The laser force-on switch likes to get stuck and is difficult to press and release fully. Wiggle the rubber cap with a pointy tool, if yours isn't latching. (I don't know the maximum output current of the 5V supply from the controller to the tail lamp.) The laser force-on switch is in the 5V circuit, so it might make a convenient control for additional 5V accessories, which could be attached to the pin marked below; but usually it's better to just strap another USB power bank to the EUC for add-on devices, which avoids possibility of overload or interference. .02 2 Quote Link to comment Share on other sites More sharing options...
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