Arduino LED Matrix

501

08:38:08

Example of a LED Matrix circuit that can be integrated to your Arduino project.
The switches represents the pins out of the Arduino board.
Individual LEDs are driven by setting the states of the columns and rows switches.
Use Multiplexing method in Arduino to act a LED display.

published 9 years ago

pepnerg

9 years ago

The problem is that when you turn all the leds on, the current won t be enought for all of them. A resistor for each led is needed probably

reesey

9 years ago

pepnerg: if you're driving the matrix with multiplexing circuit, you are not turning all the LEDs at the same time. Multiplexing is about switching on and off outputs at a very rapid rate, so fast that out eyes can't actually tell the difference. It is widely use in the electronic industry for that reason.

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