multiple Led help
- Thread starter Raffles
- Start date
poodoogazebo
New Member
Try Instructables.com. I believe what you need is to make multiple LED's flash on and off. If this is true, then you would be looking for a type of programming called either charlie-plexing or multiplexing. Do you happen to have any LED controllers? If not, you should take a look at the Adafruit POV kit. It uses a micro-controller (Atmel AT-tiny2313) via serial port to make LEDs flash on and off. If you need any more assistance, i can hook you up with some source code for the board. Good luck, man!
Actually, when mixing leds in a circuit physical size is irrelevant. The factors to watch out for are a. maximum current capacity and b. led color. (It is not necessary to run leds at maximum current. In fact, if your power supply is limited running leds at reduced current is a good thing.) The voltage across leds is determined by color. Blue, green, and white leds need 3.5 volts to light up. Red and yellow need 1.75 volts. Take this into consideration when calculating the current limiting resistor. When running leds in series add up the led voltages and use that to choose the resistor (you only need one resistor per led or string of leds). Running leds in series does not have the reliability issues that you get with light bulbs in series.
Jestefarean
Sr Member
Very cool! Ty!
