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by flyswatter12
Wed Feb 24, 2016 12:18 am
Forum: Automation, sensing and robotics
Topic: getting two Pis to dump sensor readings into one SQL file
Replies: 31
Views: 3804

Re: getting two Pis to dump sensor readings into one SQL fil

For "real time" sensor nodes, I assume you mean on the order of same second or same minute type networking. The Pi is much better for that in my opinion than an Arduino or other embedded processor. If you're a few milliseconds off here or there, it's not a big deal for most data logging. A...
by flyswatter12
Wed Feb 24, 2016 12:07 am
Forum: Automation, sensing and robotics
Topic: Control big stepping motors with Raspberry
Replies: 5
Views: 4815

Re: Control big stepping motors with Raspberry

You can get stepper motor drivers going up to at least NEMA 34 motor sizes. I use NEMA 34 on my milling machine CNC conversion. The drivers I'm using for it are MA860 drivers like this one: http://www.ebay.com/itm/like/331393094727?ul_noapp=true&chn=ps&lpid=82 Figure out the motors you need,...
by flyswatter12
Tue Feb 23, 2016 11:36 pm
Forum: Automation, sensing and robotics
Topic: Raspberry Pi Microwave + bar code Scanner
Replies: 7
Views: 1245

Re: Raspberry Pi Microwave + bar code Scanner

Cool project. As others have mentioned, it could be a bit hazardous, but that's no reason not to try it. Just understand the risks first, ask for help if you need it, and be safe. 1) I would definitely keep the original touch pad and timing device from the microwave. Why? The microwave was designed ...

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