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Add note about calling sntp.sync periodically

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