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penfold42's Recent Activity

  1. penfold42 replied to the thread BUG Unable to initialize ws281x library..

    Can you try adding a level shifter ? A 74hct125 is the best option but just about any 74HCT series chip can be made to work if you're...

    22 January 2017 at 00:52
  2. penfold42 replied to the thread BUG Unable to initialize ws281x library..

    Correct - pwm uses direct register access so it Pi only. Ws2812 over spi should work on other fruits

    21 January 2017 at 13:41
  3. penfold42 replied to the thread SOLVED Level shifter.

    C3, a3, c4 and a4 are all inputs and should be connected to vcc or gnd. It doesn't matter which pins go to bcc or ground - just use...

    19 January 2017 at 23:08
  4. penfold42 replied to the thread SOLVED Level shifter.

    The top breadboard picture is mostly correct. It should work but the unused inputs should be connected to high or low and not left...

    19 January 2017 at 13:32