I want to make a led sign, like a strip. such as [ 9--switch---Resistor-led-resistor-led]
But I want at least 50 led.
I got an idea what to do, but it has been years since I used Led's and resistors so please give me a descriptive list what to buy. I need to know the right thing to buy preferably radioshack.
sorry for lack of information. I want either 5 or 10mm leds. Multicolored(or green-red it will do) , or It don't matter for now. I want just want a single signboard, after this project of course I will get into more advanced(flashing, motion sensor, and others) because i haven't touched a soldering iron in years.
Couple of months, wishful thinking. Small 9v batteries are rated in mAh. Try connecting a single LED, 1K resistor and a 9v battery. See how long it lasts.
Hmm I dont know how you guys test but I have had a red Led soldered to a 3v button cell for over 3 weeks now and it is still going strong.
I done it simply to see how long it would go for and havent finished the test yet cause it is still going!!!
Hmm I dont know how you guys test but I have had a red Led soldered to a 3v button cell for over 3 weeks now and it is still going strong.
I done it simply to see how long it would go for and havent finished the test yet cause it is still going!!!