[Lab] ESP8266 issues and data logger

Richard Sloan rsloan at themindfactory.com
Sun Dec 7 14:19:10 EST 2014

I am getting a bunch in shortly $5.50 once shipped to me takes about a week
to get


Also check out esp8266.com its my website
On Dec 7, 2014 2:10 PM, "Peter Sjoberg" <peters-modlab at techwiz.ca> wrote:

> Hash: SHA512
> On 12/07/2014 09:52 AM, Adrian Jones wrote:
> > Dear all,
> > After the suggestions and ideas from you all, I have developed a
> > proof-of-concept data logger (http://woodsgood.ca/projects/ ) that
> currently
> > measures temperature and humidity. I shall be refining it to measure the
> > water temperature and water level of our lake. The breadboard design has
> > been running for a couple of days and I am pleased enough with it to
> create
> > a circuit board and complete the rest of the hardware.
> How do you plan to power it ? I started a remote sensor but using normal
> rf link to a central spot that then can upload things wherever and found
> battery lifetime to be a problem, 2xAA would last less than a month, see
> end of
> http://lpaseen.blogspot.ca/2014/11/temperature-humidity-monitoring.html
> for my numbers (and code and so on).
> >
> > Overall, while the ESP8266 is a neat little device and a very cheap
> solution
> > for a WiFi transceiver, I have found it to be somewhat unstable and
> somewhat
> > unpredictable.
> Not good in a place-and-forget setup where you don't want to touch it
> for a long while.
> > I shall try to narrow down what's happening (rail stability
> > is one issue that I already reported on) but on occasion it has entered
> > something like a reset loop where it spits out it's "System Ready"
> message
> > repeatedly and does not respond to any AT commands.
> How often? once a week, once an hour or ?
> > A hard reset (power
> > cycle) or a chip reset (RST low for 50ms) seems to get everything back on
> > track. I shall build this into the software to force a reset if the unit
> > throws multiple failed transmission errors, so this issue (maybe of my
> own
> > making) can be addressed.
> In order to save battery I guess you could simplify it and just power
> down the whole module while resting and then it always reset before
> sending.
> >
> > I don't know if others have experienced this instability, so ideas
> please?
> > Once I test the new batch I have ordered, I shall report again.
> Sounds like I need to get my hands on one of this to do some testing.
> What's best, get one from you or ebay (like
> http://www.ebay.ca/itm/221619180149) ?
> /ps
> Version: GnuPG v2.0.22 (GNU/Linux)
> Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/
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> =aRtu
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