Add note about calling sntp.sync periodically

2016-07-25 14:28:27 +02:00 · 2016-07-25 14:28:27 +02:00 · 3eccf506d1
parent aa5fd1445d
commit 3eccf506d1
1 changed files with 3 additions and 1 deletions
--- a/docs/en/modules/sntp.md
+++ b/docs/en/modules/sntp.md
@ -10,7 +10,9 @@ When compiled together with the [rtctime](rtctime.md) module it also offers seam

 ## sntp.sync()

-Attempts to obtain time synchronization.
+Attempts to obtain time synchronization. 
+
+For best results you may want to to call this periodically in order to compensate for internal clock drift. As stated in the [rtctime](rtctime.md) module documentation it's advisable to sync time after deep sleep and it's necessary to sync after module reset (add it to [`init.lua`](upload.md#initlua) after WiFi initialization).

 #### Syntax
 `sntp.sync([server_ip], [callback], [errcallback])`