From d96d7f237f49d6599c87304480396738c9c6c7c5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marcel=20St=C3=B6r?= <marcelstoer@users.noreply.github.com>
Date: Sat, 1 Oct 2016 13:44:24 +0200
Subject: [PATCH] Document node.flashsize(), fixes #1510 (#1511)

---
 docs/en/modules/node.md | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/docs/en/modules/node.md b/docs/en/modules/node.md
index 431a5ef9..3da196b4 100644
--- a/docs/en/modules/node.md
+++ b/docs/en/modules/node.md
@@ -136,6 +136,19 @@ none
 #### Returns
 flash ID (number)
 
+## node.flashsize()
+
+Returns the flash chip size in bytes. On 4MB modules like ESP-12 the return value is 4194304 = 4096KB.
+
+#### Syntax
+`node.flashsize()`
+
+#### Parameters
+none
+
+#### Returns
+flash size in bytes (integer)
+
 ## node.heap()
 
 Returns the current available heap size in bytes. Note that due to fragmentation, actual allocations of this size may not be possible.