digitalio example fails on Huzzah

[larryfast]

When following the digitalio example on https://circuitpython.readthedocs.io/en/latest/shared-bindings/digitalio/__init__.html I get the following error:

from board import *
import digitalio

pin = digitalio(D14)
Traceback (most recent call last):
File "", line 1, in
NameError: name 'D14' is not defined

I get the same error for any value of Dnn

Environment:
Clean install of CircuitPython 3.0.0 w. 3.0.0-beta Bundle
Target: Huzzah
Install Method: esptool.py & ampy

Note that this problem is also present in 2.3.1. I reinstalled to verify the issue on a clean install of the latest code.

Cheers,
Larry Fast

[jerryneedell]

The ESP8266 uses pin names GPIOx rather than Dx.
Try GPIO14

[sommersoft]

Also, if you're ever curious about any module's available functions/objects, you can use dir(<module>) to get a list.

For example, all of the pin names can be seen with dir(board).

[larryfast]

Thanks for dir(). I've been trying to track down python's "list internals of xyz" function for a couple weeks.

[larryfast]

Since this is probably a documentation issue not a source issue, should I close it?

[sommersoft]

Well, we could maybe still use the issue to improve the documentation on the ESP's different pin naming. In your experience so far, do you have a recommendation for a location(s) to document. Understand that some are easier to accomplish than others, but we should still strive to make it work.

[dhalbert]

Right now the base Feather HUZZAH Learn Guide mentions nothing about CircuitPython: https://learn.adafruit.com/adafruit-feather-huzzah-esp8266. There are a bunch of other guides that do, but maybe some elementary info there would be helpful, or at least they could be pointed to. @kattni @ladyada

[larryfast]

As a reasonably green Python programmer I think I represent a lot of your audience. It would be VERY helpful to have a reference to dir() somewhere. Eg. a generic page about diagnosing python errors and especially some help on learning to interpret the C sources.

As for this particular issue, I think the digitalio page should say something about this board-to-board difference.

Thanks, Larry Fast

[ladyada]

hiya, we no longer support the esp8266 as of 4.x - please check out micropython for esp8266 support! :)