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  1. J

    ILI9225 Optimized Library

    Wow, thank you for sharing this code. I had been using this library ( which worked but was rather slow... Putting in your library made a huge improvement, so much that I am having to add delays so somethings do not go too fast.
  2. J

    My i2c sniffer

    kito thank you for sharing this code, this provided a great starting point for some similar I2C decoding I was doing.
  3. J

    Optimize data transmision over USB Serial

    Oh and just in case it is not clear the limiting factor is not the time it takes to do the write or print... 12mbit/sec USB is the limit... So if your code is not sending data at close to the limits then the Teensy will buffer the write or print and return instantly (assuming the host computer...
  4. J

    Optimize data transmision over USB Serial

    So I realize this is a old but I was curious and did some testing of my own that I thought I would share... I am using Arduino 1.6.11 and Teensyduino 1.30 on Windows 7. Here are the results for a Teensy 3.1 (same as 3.2 basically): println() 203099 us sprintf() 649877 us write() 195594 us...