SmartMatrix SD Shield v3 - for Teensy 3.1 [ada-1902]
So you have a Teensy 3.1 and a 16x32 RGB LED matrix panel or 32x32 RGB LED matrix panel and you want an easy way to add graphics to your matrix without having to toss aside your Teensy or do too much soldering. Enter the SmartMatrix SD Shield v3 - for Teensy 3.1.
The SmartMatrix shield has 13 I/O pins that larger matrices need to drive the display. It also adds a place to drive an external power supply and conveniently brings out the Teensy's free signals to a header.
As of Monday, June 1st, 2015 we are selling the upgraded SmartMatrix SD Shield version 3.
Upgrades for version 3 include:
MicroSD card reader
5V level shifters for better compatibility with 5V panels
Expansion port for pins on end of Teensy: A14/DAC, PGM, VBAT
Improved expansion port pinout, breaking pins out in logical groups
Changed power connector for lower profile mounting
Larger female panel connector to avoid off-by-one alignment
Improved silkscreen labels, now visible when using right-angle connectors
Replaced shrouded male header with plain double-row male header to make room for larger expansion port