syamajala Posted June 16, 2011 Report Share Posted June 16, 2011 Here are some pics of my FM's control surface. Its not done yet. I'm going with a blue and white color scheme. Since the backlight for my lcd screen is blue and the text is white. Quote Link to comment Share on other sites More sharing options...
sidmonster Posted June 16, 2011 Report Share Posted June 16, 2011 wow, is that 9v battery almost dead? or is that really big resistor? and what's the point of testing LED with wrong voltage? Quote Link to comment Share on other sites More sharing options...
Hawkeye Posted June 16, 2011 Report Share Posted June 16, 2011 powering ledz with anything below 7v is schoolboy business :whistle: Quote Link to comment Share on other sites More sharing options...
syamajala Posted June 17, 2011 Author Report Share Posted June 17, 2011 I didn't know there was a wrong voltage to test leds with. The battery is new, the resistor is 220 ohms. Quote Link to comment Share on other sites More sharing options...
sidmonster Posted June 17, 2011 Report Share Posted June 17, 2011 powering ledz with anything below 7v is schoolboy business :whistle: How do you increase the voltage sent from DOUT? Quote Link to comment Share on other sites More sharing options...
jojjelito Posted June 17, 2011 Report Share Posted June 17, 2011 There's this thing called a transistor :geek: Just saying. Quote Link to comment Share on other sites More sharing options...
Hawkeye Posted June 17, 2011 Report Share Posted June 17, 2011 you are mean :-) and i know why the LEDs are so white :-) Quote Link to comment Share on other sites More sharing options...
jojjelito Posted June 18, 2011 Report Share Posted June 18, 2011 Aww, I didn't mean to be sarcastic :console: Sorry 'bout that. The question just baffled me. Anywho, direct voltage (always on) is another option, discrete transistors, transistor arrays (3046, or ULN 200x for larger loads) etc are there for the sidmonster to look at. Or, use CD4000-stylee logic (DON'T confuse with 74HC4xxx!) like so: RG Keen explains. Quote Link to comment Share on other sites More sharing options...
Hawkeye Posted June 18, 2011 Report Share Posted June 18, 2011 (edited) Just to avoid hate mails from people who burned down their houses with overpowered ledz: LEDz have rights, too. And 40 hours per week max worktime. Overlord cat therefore doesn´t approve. Use laserz instead! :frantics: Edited June 18, 2011 by Hawkeye Quote Link to comment Share on other sites More sharing options...
syamajala Posted June 21, 2011 Author Report Share Posted June 21, 2011 I made a mistake by putting the rotary encoders so close to one another. Its almost done now... Quote Link to comment Share on other sites More sharing options...
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