Implementation notes

All about the cool new device that can read RF data directly from Davis® weather stations

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PWS
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Implementation notes

Post by PWS » Sun Dec 24, 2017 3:04 pm

Are there any updated/expanded MS implementation notes (from the original that's online)? Guessing the answer's probably no, but just thought I'd ask.

eg:

1. Does MS reliably remember its settings when powered off for some time? ie so there's no need to reinitialise Tx, format etc settings at each reboot?

2. If you do want to reinitialise for any reason, can the commands be passed in a single string, eg "m1o1t1" or maybe "m1\no1\nt1" or does each command need to be sent separately with a short delay?

3. Can't see any way of pausing MS output, which is potentially handy during development. Guess one option is temporarily to set to a different locale (eg EU-->US), but presumably there's no other official way of doing this?

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Re: Implementation notes

Post by admin » Thu Dec 28, 2017 11:52 pm

ad 1) The Meteostick does not have any non-volatile storage. After a reset/power-cycle all settings are gone.

ad 2) no dalays are needed but they need to be separated by newline characters.

ad 3) no pausing, but your follow-up process should be easily able to drop incoming data.

Please remember that the Meteostick has extremely limited CPU capabilities and an even more limited RAM/ROM setup. So your follow-up process should do the clever things like buffering, remembering settings, etc.

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Re: Implementation notes

Post by PWS » Sun Dec 31, 2017 9:50 pm

OK, Boris, many thanks - that's all useful to know. So essentially whenever MS might restart (eg power cycle or outage) it needs formally to be reinitialised.

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