From ddb53c9458381f71d896ebba60234716f1b156d9 Mon Sep 17 00:00:00 2001
From: Christopher Tse
Date: Tue, 26 Jan 2021 22:52:55 -0600
Subject: docs/esp8266/quickref: Add warning block about NeoPixel timing.

---
 docs/esp8266/quickref.rst | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'docs')

diff --git a/docs/esp8266/quickref.rst b/docs/esp8266/quickref.rst
index 1a22bd50a..a478b6658 100644
--- a/docs/esp8266/quickref.rst
+++ b/docs/esp8266/quickref.rst
@@ -364,6 +364,13 @@ For low-level driving of a NeoPixel::
     import esp
     esp.neopixel_write(pin, grb_buf, is800khz)
 
+.. Warning::
+   By default ``NeoPixel`` is configured to control the more popular *800kHz*
+   units. It is possible to use alternative timing to control other (typically
+   400kHz) devices by passing ``timing=0`` when constructing the
+   ``NeoPixel`` object.
+
+
 APA102 driver
 -------------
 
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