VBUS with just a usb ftdi connector?

danielwippermann / resol-vbus

A JavaScript library for processing RESOL VBus data

MIT License

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VBUS with just a usb ftdi connector? #23

Closed wuftymerguftyguff closed 5 years ago

wuftymerguftyguff commented 5 years ago

Hi,

Not an issue, just a question

Do I need additional hardware like a datalogger or resol proprietary usb interface to use this? or can I connect a usb rs232 or RS485 serial port to the vbus connections?

Thanks for all your work.

danielwippermann commented 5 years ago

Hi,

the VBus signal differ from standard RS232 and RS485 signal specifications (see the VBus spec for details and a sample circuitry at the bottom of the page: http://danielwippermann.github.io/resol-vbus/vbus-specification.html).

That said: I have heard feedback from several users that use RS485 adapters to receive (not send) VBus data. So it might work, but there is no guarantee...

Best regards, Daniel