5,710
edits
Changes
→Week Y - Advanced Interfaces
** TX (transmitter) http://www.sparkfun.com/commerce/product_info.php?products_id=8946
** RX (receiver) http://www.sparkfun.com/commerce/product_info.php?products_id=8950
=== Week Z - Multiplexed displays ===
This is a dot matrix LED driver circuit you can build:
http://www.best-microcontroller-projects.com/support-files/led-dot-matrix-display.pdf
You will need:
*5 x 470 ohm resistors
*1 LN2803 (NPN transistor array)
*1 4017 (decade counter)
It will use 7 output pins on your controller: 5 for the column data, one as the clock for the counter, and one to reset the clock counter. Thats pretty good.
If you are going to drive two 5x7 arrays, you can use the same clock signal and reset for both decade counters, so you will only need 12 pins total, to draw any picture you want, 10x7 pixels wide. This is pretty cool.
=== Week 7-10 TBD, Towards Final Projects ===
