LWIP - How to use the SNTP app

I am looking into implementing an SNTP client using LWIP on a Nucleo-F429ZI, its a checkbox to enable SNTP, but I can find no documentation or examples on what you do from there.

I can see functions to enable/disable SNTP, but how you actually request/return the time.

Does anyone have some pointers about what/how it works? or even an example?

Hello Richard,

Here is an SNTP client but for Mbed OS 2. Perhaps it helps.

Best regards,


Hi Zoltan - thanks, thats a great start!

I’ll have a read through the code.

thank you