Hopiu/rpi-rgb-led-matrix
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o README tweaks.

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Henner Zeller 2015-03-04 23:56:48 -08:00
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commit aaeb4430a8
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11
README.md
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@ -390,8 +390,8 @@ guidelines:
Help, some pixels are not displayed properly
--------------------------------------------
Some panels don't handle the 3.3V logic level well, in particular with
faster Raspberry Pis. This results in artifacts like randomly showing up pixels
or parts of the whole having 'static'.
faster Raspberry Pis Version 2. This results in artifacts like randomly
showing up pixels or parts of the panel showing 'static'.
If you encounter this, try these things
@ -401,14 +401,13 @@ If you encounter this, try these things
- Use an adapter board with a bus-driver that acts as level shifter between
3.3V and 5V. You can find [active adapter PCBs](./adapter/) in a
subdirectory of this project. Also, Adafruit made a HAT that has level
shifters
shifters.
- If you can't implement the above things, or still have problems, you can
slow down the GPIO writing a bit. This will of course reduce the
frame-rate.
frame-rate, so it comes at a cost.
For the slow-down, uncomment the following line in
the [lib/Makefile](lib/Makefile)
For GPIO slow-down, uncomment the following line in [lib/Makefile](lib/Makefile)
#DEFINES+=-DRGB_SLOWDOWN_GPIO # remove '#' in the beginning