pcb Driving 10x10 LED matrix with AVR


Posted on Feb 7, 2014

Designing a controller PCB for a 10x10 white LED matrix clock (inspired by the tutorial here ). It`s based off an ATmega328 AVR IC and Maxim DS3234 SPI RTC. However, I`m stuck: I have no idea how to control my custom non-standard 10x10 LED matrix. Originally I was going to use a Maxim MAX7219/7221 IC, but it can only drive 8x8 LED matrices. Then I was looking at some sort of charlieplexing solution with a


pcb Driving 10x10 LED matrix with AVR
Click here to download the full size of the above Circuit.

ULN2803 darlington transistor array. The bright white LEDs I`m using need at least 30mA of current.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Multi-color LED driver
Metal locator circuit
simple led voltmetercircuit
dev board
30 watt audio amplifier
Remote antenna for 60 kHz (WWVB) reception
Egg Timer
Using LVDS serializer/deserializer devicesm



Top