Well, it won't be bright for sure. Maybe not even on. But as long as the 3.3V is taken from the expansion header it should be OK. As to 1K, that would be safe.
Gerald On Mon, Jul 28, 2014 at 10:20 AM, Energia <[email protected]> wrote: > Thanks, Gerald. Well, here it says for this module: > Red Vf: 1.8 to 2.1V > Green Vf: 3.0 to 3.2V > Blue Vf: 3.0 to 3.2V > > https://sites.google.com/site/summerfuelrobots/arduino-sensor-tutorials/3-color-rgb-led-module > > So in theory I could connect it to BBB's pwm pins (3.3v?) after all but > with 3 x 1k ohm resistors? It won't be bright, but it will be safe (for > BBB) and it will work? > > > On Monday, July 28, 2014 5:53:48 PM UTC+3, Gerald wrote: > >> I would really need to see a datasheet to answer your question. I doubt >> very much that 6mA is enough to turn the LEDs on, especially if it likes to >> see 5V in its natural environment. >> >> Gerald >> >> >> >> On Mon, Jul 28, 2014 at 9:48 AM, Energia <[email protected]> wrote: >> >>> I got this single 5050 RGB LED module that I want to connect to BBB: >>> http://www.ebay.com/itm/1PC-New-RGB-3-Color-Full-Color- >>> LED-SMD-Module-For-Arduino-AVR-PIC-/181259217039?pt=AU_ >>> Car_Parts_Accessories&hash=item2a33e4288f&vxp=mtr >>> >>> It says operating voltage: 5v. So if I connect it to BBB's pwm pins, it >>> won't work (and nothing bad will happen)? >>> Do I need resistors for this module in general? >>> >>> -- >>> For more options, visit http://beagleboard.org/discuss >>> --- >>> You received this message because you are subscribed to the Google >>> Groups "BeagleBoard" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to [email protected]. >>> >>> For more options, visit https://groups.google.com/d/optout. >>> >> >> -- > For more options, visit http://beagleboard.org/discuss > --- > You received this message because you are subscribed to the Google Groups > "BeagleBoard" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/d/optout. > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
