Difference between revisions of "LED Matrix Display"
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* Refresh Frequency: TBD | * Refresh Frequency: TBD | ||
==Milestones / ToDo== | ==Milestones / ToDo== | ||
| + | * Plan a meeting | ||
| + | * Decide on shifting method and comms proto | ||
==Photos== | ==Photos== | ||
==Resources== | ==Resources== | ||
| Line 21: | Line 23: | ||
<pre> | <pre> | ||
Shifting options | Shifting options | ||
| − | - Johnson counters | + | - Johnson counters and capacitors |
- Shift registers with latched outputs (74HC595, CD4094, HEF4794 [with drivers], TLC6C5912 [with drivers, 12-bit]) | - Shift registers with latched outputs (74HC595, CD4094, HEF4794 [with drivers], TLC6C5912 [with drivers, 12-bit]) | ||
| − | LED Driving | + | LED Driving options |
- Transistor arrays (ULN2804 [cmos], ULN2803 [ttl]) | - Transistor arrays (ULN2804 [cmos], ULN2803 [ttl]) | ||
- Shift registers (HEF4794) | - Shift registers (HEF4794) | ||
- Dimming (TLC5940) | - Dimming (TLC5940) | ||
| + | Comms protocol | ||
| + | - RS232 | ||
| + | - RS485 | ||
| + | - Ethernet | ||
</pre> | </pre> | ||
[[Category:Projects]] | [[Category:Projects]] | ||
Latest revision as of 23:19, 10 June 2013
File:LED Matrix Display.png
LED Matrix Display
Contents
LED Matrix Display
Description
A LED matrix display is a device used to display information on a LED panel.
Log
Specifications
- Character size: 8 x 6
- Font size: 7 x 5
- Number of characters: 11
- Total number of LEDs: 528
- Refresh Frequency: TBD
Milestones / ToDo
- Plan a meeting
- Decide on shifting method and comms proto
Photos
Resources
Source code
Team
Whiteboard
Shifting options - Johnson counters and capacitors - Shift registers with latched outputs (74HC595, CD4094, HEF4794 [with drivers], TLC6C5912 [with drivers, 12-bit]) LED Driving options - Transistor arrays (ULN2804 [cmos], ULN2803 [ttl]) - Shift registers (HEF4794) - Dimming (TLC5940) Comms protocol - RS232 - RS485 - Ethernet
