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Hi Henrik

Yes you are right

I found this:

http://www.picbasic.co.uk/forum/showthread.php?t=18978&highlight=waitstr

It clarified some things for me

However,

why does this code not. It receives nothing

Hserin 10000, start, [WAITSTR buffer\3]

I need to wait for the three characters from an Arduino

Hi All

All right. Thanks for the response.

It's a bit embarrassing and I'm pretty confused for a sudden does it all as it should without I know what caused it. It's very simple setup but for...

Both running 5V
9600 Baud
Uses HSERIN PORTC.7

Is there something with logic voltage levels I should be aware of?

Have tried with pull up 4K7 and 10K ...

Receives only 3 nonsense letters