<p dir="ltr">That would be a very tiny package!</p>
<p dir="ltr">I'm going to have to dig into digikey IC toys for a listing of chips for various protocol options. It may be time to revisit some old projects for ad hoc mesh networks using a smart phone usb2go dongle and an app to route low bandwidth data over it.</p>
<div class="gmail_extra"><br><div class="gmail_quote">On Jul 26, 2016 11:12 PM, "Alex Carver" <<a href="mailto:agcarver%2Bale@acarver.net">agcarver+ale@acarver.net</a>> wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">The direct Zigbee replacement would be to use the base IEEE 802.15.4 and<br>
put a protocol of your choice on top of it.<br>
<br>
As for the Espressif ESP8266 chips, if you drop out of NodeMCU and<br>
program the chips directly using their SDK you can unlock a significant<br>
amount of power. For example, did you know the chip has an I2S<br>
interface built-in? Add on a codec chip and a RAM chip (for buffering)<br>
and you can stream MP3 sound with the module.<br>
<br>
On 2016-07-26 18:55, Chris Fowler wrote:<br>
><br>
><br>
> --------------------------------------------------------------------------------<br>
><br>
> *From: *"Jim Kinney" <<a href="mailto:jim.kinney@gmail.com">jim.kinney@gmail.com</a>><br>
> *To: *"Atlanta Linux Enthusiasts - Yes! We run Linux!" <<a href="mailto:ale@ale.org">ale@ale.org</a>><br>
> *Sent: *Tuesday, July 26, 2016 9:06:54 PM<br>
> *Subject: *Re: [ale] IoT<br>
><br>
> What's your replacement for zigbee?<br>
><br>
> NodeMCU ESP-12Es.<br>
><br>
> I started using one to monitor moisture in a ceiling after a bathroom remodel to<br>
> a tiled shower. I then added temp/humdity. I then added power control, etc.<br>
><br>
> Each runs MQTT. I'm running Mosquitto on Linux.<br>
><br>
> To bridge my X10 legacy power control I wrote a program that subscribes to<br>
> x10/<house>/<device> topics. It then executes bottlerocket using a firecracker<br>
> on ttyS0. I have a device that will allow Linux to read X10 messages on power,<br>
> but I have to build it. Once done then my X10 button transmit devices can<br>
> bridge to MQTT.<br>
><br>
> You can buy NodeMCUs from Amazon for about $10. China about $3. Relay for<br>
> power control about $1. I have found some pre-made devices for around $7 that<br>
> can be reprogrammed. The benefit is that they include the enclosure.<br>
><br>
> Using esp-link firmware you can take the NodeMCU and turn it into a "wifi<br>
> shield" for Arduino. I investigated Zigbee and Z-Wave to replace my X10, but I<br>
> found NodeMCU and will not look back.<br>
><br>
> I was using REST and then found MQTT. I wrote a REST to MQTT gateway so I could<br>
> still use REST from clients if required.<br>
<br>
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</blockquote></div></div>