on 19/07/2020, Harry Bloomfield, Esq. supposed :
John Rumm wrote :
On 18/07/2020 19:46, Harry Bloomfield wrote:
A battery powered gadget, wakes up every 15 minutes, logs into my router
just long enough to send a batch of data to a website and then goes back
to sleep. The gadget in operation, is inaccessible, but flashes an LED on
the gadget when it transmits. Waiting 15 minutes for a flash of a few
milliseconds isn't an easy solution anyway.

My router, which it connects to, only shows it in its list of attached
devices if I happen to log into my router at just the right instant. To
add to the problem of confirming it is working, the website is sometimes
just not available.

Is there any way I can confirm the gadget is actually working and sending
the data batches?

Wireshark will do it, although it takes bit more work to get it setup to
sniff wifi.

It is obviously working now, here is the graph it produces...

https://industrial.ubidots.com/app/d...26JM4Lw3DLRyJ0

It finally went into the ferment vessel at 19:33 yesterday evening,
after I at last saw it had produced data on the website.

It is normal for the SG to initially rise gradually up some way during
the first day, before the fermentation proper gets under way. The line
becomes jagged as I shake the vessel up, as happened at 21:14.