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I need a simple circuit that can light up LED's one by one. Once the next led is lit up the previous one switches off. Use of micro controller would be difficult cause I'll be using at least 200 LEDs.
Thanks in advance
It'll take at least 7 micro controllers.
using microcontroller would be easierI need a simple circuit that can light up LED's one by one. Once the next led is lit up the previous one switches off. Use of micro controller would be difficult cause I'll be using at least 200 LEDs.
Thanks in advance
A Charlieplexed digital clock which controls 90 LEDs with 10 pins of a PIC16C54 microcontroller.
8051 dont have much pin to control 200 leds ( except using multiplexing )I've tried with an 8051. I've used the basic circuit and I'm attaching the program. I didn't make the matrix but connected leds to the port.They didn't glow. What I'm I doing wrong?
I've tried keil and the ports do go in the order required.
RIGHT !You can do 100 LEDs with 2 4017's
Thanks a lot I've tried with decoders and 8051. None of the circuits are giving the output.
I'm not even getting an high output and this guy did it
**broken link removed**
use ExpressSCHHey, what do i use to view the file? I tried pspice and atrium designer. None of them worked