From c5780dceaafd498ee8932ad7bfeff9325d2c6237 Mon Sep 17 00:00:00 2001 From: Brendan Le Foll Date: Wed, 15 Apr 2015 21:05:16 +0100 Subject: [PATCH] edison.md: add comment on tristate behaviour on edison Signed-off-by: Brendan Le Foll --- docs/edison.md | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/docs/edison.md b/docs/edison.md index ed42a66..f53a303 100644 --- a/docs/edison.md +++ b/docs/edison.md @@ -30,6 +30,11 @@ in libmraa: - Arduino pin 7 can sometimes negatively impact the wifi capability, if using wifi avoid using this pin +Because of the way IO is setup with the tristate on the arduino breakout board +IO will be flipped as it is setup. It's recommended to setup IO pins & +direction before using them in a setup() method or similar. It's impossible on +this platform to avoid some GPIOs flipping on setup. + Intel(R) breakout board ----------------------- -- 2.7.4