RP2350W
In my program I am trying to save a file to Drive A:/ using

How do I create the file "weather" in Drive A:/
When I run I get an error 'can't find the file'

I had this running on a Pico 2040 for years and now trying to use a WebMite so I can also send the information to my local network. The WIFI part is working but I cant save the data. I need to sent the data from my outdoor unit to the indoor unit using HC12.

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"It is better to be ignorant and ask a stupid question than to be plain Stupid and not ask at all"

I don't have a RP2350W to test on but something you could try:-
Though if the intention is to build a record over time perhaps replace "Output" with "Append".

Edit.
Or just leave out the slash, that works on other Picos.
eg
Open "A:weather" For Append As #1
Edited 2025-11-26 22:00 by phil99