The Sonoff would operate on a wireless LAN but wiring the AC to an outlet box
could be a drag. I'm bringing some standalone WiFi gagets for the raffle box
that could turn on an LED in response to WLAN-mediated comm between your RPI
and one of them. Downside is it's software interface is Lua.An ESP8266 to LED
solution could be dirt cheap, programmed with the Arduino IDE, etc.Pete
-------- Original message --------From: Tadd Torborg <[email protected]> Date:
11/11/18 10:55 PM (GMT-05:00) To: Mike Lisanke <[email protected]> Cc:
Pete Soper <[email protected]>, Triangle Embedded Interest Group
<[email protected]> Subject: Re: [TriEmbed] looking for - internet
appliance - lights on internet detail Thanks for the input all. My particular
application is entirely in the house, possibly via the WIFI LAN. Each person
who is participating in the TARPN system has a Raspberry PI, either a 1 B, 2 B,
3 or 3+. The trigger which is inspected, to determine the required behavior,
is in the Raspberry PI filesystem, in /usr/local/etc. Our project is actually
to build a text messaging network which does NOT use the Internet, linking our
Raspberry PIs together to do anything we can come up with. I will create a
background service on Raspbian which can inspect the file and then drive a
GPIO, or to do some TCP/IP communications to the appliance. I was thinking of
making a 20khz beeper, at the Raspberry PI itself, to alert the dog that I have
mail. So my visitors are over and the dog goes off barking up a storm. I
announce calmly, oh, I have mail. And as soon as I pull it down using my
tablet the dog gets quiet and goes and curls up on the couch. This would have
a nice bizzaro-behavior kind of feel to it that appeals to me. Maybe not.
Besides, I have cats, not a dog. Next…. I’ve been considering using a
single-chip radio and sending a carrier if the alert behavior is selected.
Then I’d just need a single chip radio to detect the continuous (> 0.4seconds)
of a carrier, and signal with the LED or piezo or relay. I could build the
living-room alert device with an Arduino and hat. The Raspberry PI could
easily handle programming one of the single-chip radios to send a carrier.
910-ish megahertz would be just fine. There are a ton of those
radio-hat/shield/feathers out there, but that would require more assembly than
I was looking for, plus there would be a power supply for the living room
portion which just looks like more wires. Maybe the challenge would be to make
it run for months or years on a battery. Hmm…. But then I’d need to come up
with a plan to mass produce them. Well… get enough people together, take
orders, kit the thing out, and have a soldering/plugging/programming session.
That could happen. The WIFI controlled lightbulb seemed ideal because the
hardware would all be off the shelf and there isn’t even any unique or fragile
connections to deal with. I like the idea of having a blue light on next to
the TV when there is mail waiting. That will do and not drive the wife nuts.
I’m not dying for another project. I’d rather this done short and sweet. What
I want, however, is for each and every member of the network to have this
service, even if I have to buy all of it. I am liking the $5 AC switch item.
This would be able to light or start anything that runs on voltage, but it is
really cheap and obvious. What every other member of our little off-the-grid
text messaging network does with it is up to them. I just want to make it
really easy. I ordered one of the Sonoff WIFI switches on eBay, not noticing
until later that the expected delivery date is as late as Jan 3 2019. ha.
WE’ll see what Monday brings. Maybe an evening meeting. I’m really busy on
Tuesday though as I’m doing a deal with the Raleigh Amateur Radio society at
their meeting and I do need to make sure I prepare for that. You can see the
project I’m working on here: http://tarpn.net Network map with the Network
link and Builder instructions with lots and lots of details under Builder link.
Tadd
Tadd / [email protected] NC FM05pv“Packet networking over ham radio":
http://tarpn.net/t/packet_radio_networking.htmlLocal Raleigh ham radio info:
http://torborg.com/a
On Nov 11, 2018, at 9:19 PM, Mike Lisanke via TriEmbed <[email protected]>
wrote:Actually, there are many IOT devices that include Internet (wired or
wireless) and a RGB LED or many ... and many of them are less than $30.To make
you app, all you need is an Internet App which pulls or gets push data and
changes it's color. Cool Packages cost money But some of the Adafruit
Playground have LED and Sensors and Internet and programming for
non-programmers etc. There are also RGB LED WiFi lightbulb but you'll likely
have to add an external Internet compute to drive it... I think something like
IFTTT can drive it but you'll be putting your Intranet at risk dropping a light
bulb on the Internet :-pOn Sun, Nov 11, 2018 at 7:48 PM Pete Soper via TriEmbed
<[email protected]> wrote:
Right. You can buy a smaller number for even less. The instructable
below shows how to control it with a Raspberry Pi.
https://www.instructables.com/id/Control-Sonoff-From-Raspberry-Pi/
But you're still going to need invention, and that's the magic that
bridges between what your packet program is doing on the Raspberry
Pi and the actions necessary to invoke the program to turn on the
Sonoff. You won't find that at Amazon Prime, but if you come to the
meeting tomorrow somebody might be able to find out more about how
the packet radio code works and suggest an approach.
-Pete
On 11/11/18 7:40 PM, Tadd Torborg via
TriEmbed wrote:
Hmm.. Very
pretty. Perhaps wishful thinking, but I was looking for
something closer to $50 that didn’t require new invention.
I like what you
came up with. Nice shopping list too.
Have you ever
seen a Sonoff WiFi Switch ? Amazon has 6 of these for $65.
Tadd / KA2DEW
[email protected]
Raleigh NC FM05pv
“Packet networking over
ham radio": http://tarpn.net/t/packet_radio_networking.html
Local Raleigh ham radio
info: http://torborg.com/a
"When
you don't know what you're doing, you might as well do it
quickly" -
Jase Robertson
On Nov 11, 2018, at 2:52 PM, Brian
Chamberlain <[email protected]>
wrote:
Hey Tadd,
If you’re talking 10 years ago
time frame I’m guessing you’re referring to the
AmbientOrb. It was a device from an MIT group/project
that signaled the state of the weather, stock markets,
etc... Here’s an article about that device.
http://www.nbcnews.com/id/4758931/ns/technology_and_science-tech_and_gadgets/t/new-technology-relies-human-visual-system/
There have been many of these
types of devices launched as
products/kickstarters/DIY projects since then, in
various incarnations. I’m sure you can find examples
on Hackster.io. Here’s one
I built:
https://www.hackster.io/breakpointer/ambient-web-connected-color-orb-91b9fd
Also, here’s a more complete
Rpi based tutorial:
https://www.raspberrypi.org/magpi/cheerlights-orb-a-node-red-tutorial/
The neopixel from Adafruit is
great for this type of thing.
https://learn.adafruit.com/neopixels-on-raspberry-pi/overview
Hope this helps.
Cheers!
On Sun, Nov 11, 2018 at 9:32
AM Tadd Torborg via TriEmbed <[email protected]>
wrote:
Once upon a time, possibly 10 years
ago, I remember a device which looked like a
light fixture that sat on a desk. It lit up in
color, after it found some token or cue on the
Internet. You could use it to show a weather
alert, or i a certain web page did or did not
responded to pings.
I never bought one. Now I need it
for a ham radio project.
What I want to do is have a
Raspberry PI that is doing ham radio stuff
(TARPN network communications, in this case)
and have a light, possibly a blinking LED, in
the living room of my house, that would
indicate a message has been received via the
ham radio TARPN network. The Raspberry PI can
have a file that is present or missing, or
filled with some value or another, and the
blinking light needs to use FTP or Telnet via
WiFi to the Raspberry PI and query the file.
Alternatively I could have the Raspberry PI
issue a telnet message to turn the light on or
off.
Something like this already
exists. Does anybody know where to get one?
Thanks!
Tadd
Tadd / KA2DEW
http://tarpn.net
Raleigh NC
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-Brian
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