monome - Will these LEDs work?

monome - Will these LEDs work? http://forum.monome.org/topic/1030hardware > Will these LEDs work?Will these LEDs work?posted by surreal (surreal) on 05.07.2007 12:43hello,i am not completely sure what specs i should be looking for with reversevoltage and forward and voltage drop...so will these LEDs work? they are the cheapest 3mm white LEDs that icould find. i don't like going cheap but the others are a buck a pop.http://www.coolerguys.com/840556011262.htmlRe: Will these LEDs work?posted by arne (guest) on 05.07.2007 14:18Yes it would be nice if we could get som spesifications on the leds minimum.maximum values...My two kits are in the mail juhu!!aRe: Will these LEDs work?posted by tonedeft (tonedeft) on 05.07.2007 15:32I'm going to Jameco today and am trying to sort this out.In this threadhttp://forum.monome.org/topic/943#newtehn says the LEDs in the 'new units' are Jameco 33307http://www.jameco.com/webapp/wcs/stores/servlet/ProductDisplay?langId=-1&storeId=10001&catalogId=10001&productId=33330The spec sheet for the LED driver is here, check page 11 for specs:http://datasheets.maxim-ic.com/en/ds/MAX7219-MAX7221.pdfbut the dang chart doesn't have units, I believe it's kilo-ohms, the resistor in the kit is a 9.69k, so on the spec sheet that's the upper right corner, making for a VLED of 3.5V @ 40mA which is where tehn gets the 3.5V drop for LEDs. That means the LED has 3.5V across it when its on and get 40mA through it. **that's just ...