Hi guys... The figure shown below is an 8 by 8 LED Matrix I got off of the Arduino website. If I were to replace the LEDs with 12V lamps, how do I change the circuit? I know that the Arduino pins only output a maximum of 5V. My hunch is to use a total of 16 transistors to control the 8 rows and columns. I have tried several circuit connections but all have failed to work. If anyone could please draw the circuit for me or walk me through the process I'd really appreciate it.
Here's the 8 by 8 LED Matrix circuit...
Here's the 8 by 8 LED Matrix circuit...