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ws2812 and adafruit rings — Parallax Forums

ws2812 and adafruit rings

Ray0665Ray0665 Posts: 231
in General Discussion
I ran into an issue with the smaller (12 & 16 led) ws2812 rings sold by adafruit and driven by the ws_2812 driver from the OBEX.
The issue is that multiple lights would light up when only one was commanded on in a dynamic situation.
The fix was to increase the timing delay between frames from 50 us to 55us.

Adafruit makes good products and tests well however in the case of these smaller rings I think there might be an issue, the larger rings work fine.

Comments

  • RS_JimRS_Jim Posts: 1,764
    edited 2016-02-17 14:12
    There are 2 sets of parms iin the obex object. 2812 & 2812a make sure the Parma match the LEDs you are using.
    Jim
  • Heater.Heater. Posts: 21,230
    edited 2016-02-17 20:25
    I have never used ws2812 but there is a brilliant discussion about them and how to use them by Shahriar on the Signal Path Blog:

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