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| Running LED from U-HID? (LED basics) |
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| edgeofblade:
So, bit of a baby in the dark situation here. I expect I'll be doing a lot of this trial and error because there was something I just plain missed, so I'll be asking for help frequently here, if that isn't too much of an annoyance. I'm experimenting with the RGB led button kit from ultimarc with a U-HID nano (selected because I thought it would be the most flexible). I plugged the Nano in first, got the on-board led to light, assuming that means all good. I couldn't find LED wire key for that button kit, so I assumed yellow was ground and RGB was their respective colors.Then I connected the assembled button's LED leads to the U-HID, configured the nano pins for the NUM, SCROLL, and CAPS leds, just for an initial test. I wired it accordingly to the U-HID, tried to program the profile, which said it failed to program. (I was playing with U-HID usb button this morning too and that failure seemed to be a false negative, so I reasoned this could be the case as well.) Then I noticed (not immediately) that the U-HID config was not recognizing the board. I further found that the on-board LED was no longer lighting when I plugged it in. Tell me, did I fry my U-HID? What else am I missing? |
| TopJimmyCooks:
i just had a uhid nano issue and I need to send it back. I got a new one and it worked perfectly. hardware or firmware was somehow damaged. would not reupload firmware. |
| edgeofblade:
I think you nailed it. I tried to update firmware and I had problems after that. Thanks. Update: worked with Andy, got the driver reinstalled and reinserted the firmware he provided. Board posts in utility and led lights on connection. All good. |
| PL1:
--- Quote from: edgeofblade on January 20, 2014, 01:52:20 pm ---I couldn't find LED wire key for that button kit, so I assumed yellow was ground and RGB was their respective colors. --- End quote --- Close, but yellow is the operating voltage and RGB are the grounds for the colors since most arcade-hobbyist vendors sell the common anode configuration LEDs and most LED controllers control the ground side of the circuit. Scott |
| edgeofblade:
--- Quote from: PL1 on January 20, 2014, 08:56:34 pm --- --- Quote from: edgeofblade on January 20, 2014, 01:52:20 pm ---I couldn't find LED wire key for that button kit, so I assumed yellow was ground and RGB was their respective colors. --- End quote --- Close, but yellow is the operating voltage and RGB are the grounds for the colors since most arcade-hobbyist vendors sell the common anode configuration LEDs and most LED controllers control the ground side of the circuit. Scott --- End quote --- So, is a common anode led designed to work with U-Hid? Is common anode considered not standard? --- Quote ---The U-HID will drive standard LEDs only. LEDs are connected between the U-HID pin and ground. --- End quote --- |
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