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Anonymous
Decent ethernet based i/o units 2017-02-11 06:36:14 Post No. 1129477
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Decent ethernet based i/o units 2017-02-11 06:36:14 Post No. 1129477
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Hi all,
I'm moving my business to.a much bigger premises and I want to carry over my access control system. Its currently uses these axis p8221units to drive the door lock, rs232 rfid reader and some leds, however they are expensive as fuck. Does diy know of any alternatives I could use? My requirements are basically 2 controllable outs, rs232 and 2 i/o inputs, however PoE would be nice. Must be ethernet addressable. Have been told cheap PLC's could do this??
Inb4 buy a solution, I really like our setup and I have the programmer happy with the software side
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There's lots of cheap single board computers with rs232, GPIO, and TTL RS232, like the Raspberry Pi. You'll need to throw a MAX232 on the RS232 pins.
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>>1129481
Had considered that, but then we would need to make custom cases, psu, relay boards which is abit outside of our skill level
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bump like a bastard
anyone make one a homebrew version with a arm board for networking and processes and its interfacing with a microcontroller to hand analog/digital i/o
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>>1129560
Think I might have to design something and send it off to china for manufacturing. I don't really want something that needs a full os, because then its just something else to support. But remote serial (rs232/422), a handful of gpio and a basic http stack cannot need too much horse power? Atmega maybe?
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>>1129598
Oh and weigand-26 support
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>>1129598
Yes
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