Introduction
In this video a 2 Colour (red/green) 8×8 LED Dot Matrix Display circuit is developed that uses three 74HC595 ICs to drive the rows/columns and a darlington transistor array (UDN2981A) to source the current. An Arduino is used to provide the serial data and the source code is presented to show how this was achieved. The display is a common anode display and the experiment spends time examining the current constraints, explaining why we require transistor arrays to source or sink current.
Very good tutorial but where can I find the source code and schematics?
That is if you are willing to make that available.
Thanks
hey, nice work. where can i find the source code?
Love the word collie-ooms.