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All-In-One Mini Q-Control Unit
#15
always good to get other viewpoints and such in a conversation....I'm an easy-going guy, so I take no offense with any ideas/suggestions...

I've been involved in 'huge' software projects that span the globe with thousands of sites/terminals....and I know that 'future-proofing' is very important, in fact I really like thinking about the 'what-ifs' in software design. HOWEVER, with the PID (atmega temperature controller) running on the atmega you have to realize one thing....32KB of prog space and 2KB of ram... Yup, this single webpage on the forum is almost 70KB, that's twice what can be stored on atmega!!! So with these micro procs you really have to hard-code limits and worry about each and every BIT, not just BYTE!! If it was using a different proc then you could easily support 99 probes..... just think of this... it has a 64 BYTE serial buffer... so really your serial com messages should fit in that... it limits your ability to be flexible like other software enviornments....

As far as IOT, i agree security is going to be a 'big' thing moving forward. If I had a choice though between running on a PI or an esp8266...I'd choose the esp8266. Also, you could easily run MQTT server on a local-lan PI (or any pc) if you don't want to use a cloud. I'm still a believer in the cloud and keeping the qcontrol as 'dumb' as possible, but with more powerful esp8266/webservers, options are always good for different scenarios....

I would avoid learning too much about the ATMEGA, and focus on more 'modern' procs....the esp8266 is a pretty powerful chip even without the WIFI enabled. I was even thinking about using two of them in this project (one handling web, one handling the PID).... the esp32 is still a bit too new, but that looks like a nice proc as well.
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Messages In This Thread
All-In-One Mini Q-Control Unit - by NailBuster - 12-14-2016, 05:28 PM
RE: All-In-One Mini Q-Control Unit - by wbegg - 12-17-2016, 11:23 AM
RE: All-In-One Mini Q-Control Unit - by JohnW - 03-22-2017, 07:22 PM
RE: All-In-One Mini Q-Control Unit - by JeremyM - 02-16-2017, 04:54 AM
RE: All-In-One Mini Q-Control Unit - by JeremyM - 02-16-2017, 09:04 PM
RE: All-In-One Mini Q-Control Unit - by JohnW - 03-22-2017, 11:29 PM
RE: All-In-One Mini Q-Control Unit - by JohnW - 03-23-2017, 11:52 PM
RE: All-In-One Mini Q-Control Unit - by JohnW - 03-23-2017, 10:39 PM
RE: All-In-One Mini Q-Control Unit - by JohnW - 03-24-2017, 02:54 AM
RE: All-In-One Mini Q-Control Unit - by NailBuster - 03-24-2017, 03:19 AM
RE: All-In-One Mini Q-Control Unit - by JohnW - 03-25-2017, 02:43 AM
RE: All-In-One Mini Q-Control Unit - by JohnW - 03-25-2017, 01:20 PM
RE: All-In-One Mini Q-Control Unit - by JohnW - 03-27-2017, 05:30 PM

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