pinMode changes mode on subsequent Neopixel write() in 2v00 causing Green first Neo in WS2812b strip

Tue 2019.01.22

The following did not occur in 1V99 but is now repeatable in 2v00

From @allObjects and @MaBe exchange in #65

http://forum.espruino.com/conversations/­327299/?offset=50

setting the pinMode to 'output' should resolve the first Green Neo issue. I found that point interesting as I had written tons of Neopixel code in 1V99 and never witnessed the first Green Neo anomaly ever.

https://www.espruino.com/Reference#l__gl­obal_pinMode

Note that Not calling pinMode() first responds with the following default:

af_output - Digital output from built-in peripheral

and, consequently turns on the first Neo Green even when triplet 0,0,0 is sent for black

From the Note:

'If you want . . . to set the pin mode automatically . . . or with the 3rd 'automatic' argument set to true'

So setting to false should dis-able automatic then?:

pinMode(B15, "output", false);

Verified:

output - Digital output

but, subsequent calls to require("neopixel").write(B15, ar); toggle the state back to

af_output - Digital output from built-in peripheral

and, the first Neo in the string returns as Green. Not what we want.

Were there changes to the Neopixel module since 1V99 ?