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Embedded Creations

Member Since: December 28, 2013

Country: United States

  • Can you share some details on when it didn’t work at 3.3V? What was your microcontroller and what was the wiring like? (long wires?) What stopped working?

    By ghosting, do you mean faint lights in pixels that shouldn’t be lit? These show up in the same columns as other lit pixels, and I think are a side-effect of the panel multiplexing the LEDs, and probably not something that can be fixed.

  • I’m driving these panels with a Teensy 3.1 at 3.3V, and have had no issues.

  • Take a look at the comments for the 16x32 display, there’s two sources listed there. Search for “TE Connectivity” to pull the comment thread up.

  • I’m using an equivalent TE Connectivity part in my SmartMatrix Shield Kit for Teensy 3.1. TE 647676-4, Digikey A114290-ND. It looks like your part is about a penny cheaper, but it’s always good to have a second source.

    You can grab an Eagle footprint off my board, though this part is easy to make from scratch. https://github.com/pixelmatix/SmartMatrix/tree/master/hardware

  • This project is using the Beaglebone Black to drive 8 displays. I believe it is capable of driving even more than that:

    http://www.nycresistor.com/2013/09/12/octoscroller/

  • I’m working on a library for the Teensy 3.1 to drive these panels using DMA. I have an early version that’s able to produce 24-bit color with low CPU usage. I expect to have the library along with an Open Hardware adapter board released in about a month. If you’re buying one of these panels I suggest you pick up a Teensy 3.1 over an AVR-based Arduino to drive them, the Teensy 3.1 is much more capable.

    I’m posting on my project here: http://dangerousprototypes.com/forum/viewtopic.php?f=56&t=6125&p=56311

  • I’m working on a library for the Teensy 3.1 to drive these panels using DMA. I have an early version that’s able to produce 24-bit color with low CPU usage. I expect to have the library along with an Open Hardware adapter board released in about a month. If you’re buying one of these panels I suggest you pick up a Teensy 3.1 over an AVR-based Arduino to drive them, the Teensy 3.1 is much more capable.

    I’m posting on my project here: http://dangerousprototypes.com/forum/viewtopic.php?f=56&t=6125&p=56311

No public wish lists :(