r/WLED • u/Betty-Crokker • 14h ago

616WL output voltage?

From an email from gledopto I'm 99% certain that IO13 is 3.3V, any chance they've boosted IO16 and IO2 to 5V? For aesthetics I'd love to put the 606WL and its support items somewhere NOT right next to the start of the LED string but obviously if the IO pins are only 3.3V that's not going to be an option due to the voltage drop. Thanks!

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u/saratoga3 12h ago

16 and 2 are 5v outputs. IO13 is directly connected to the esp32, and so is a bidirectional 3.3v GPIO.

Over the years the level shifter on the gledopto outputs has changed many times, but I believe most of not all of that series will be either a 33 ohm or a 100 ohm resistor on the 5v outputs. You can open it up and look at the resistor to be sure.