Guru
Joined: 05/03/2018
Location: NetherlandsPosts: 5021
| Posted: 09:34am 20 Oct 2021 |
Back to option 1..
nice to have a footprint for the pi, and add a switchmode powersupply. But the pi zero is missing some essentialsfor control applications that everybody will add, and that eat lots of the sea of holes:
Communication interface (485 or ethernet)
Real time clock(essential, unless you are an intelligent IO expander)
HID: leds and maybe a switch. These could be the oled option, but then you are talking about the pi(4 euro) adding 26euro(housing) and 25 euro(the oled option).
Even at the chineese rtc an communication interfaces its getting close to 70 euro. And then you can add your relays and SSRs.
Edit: I just noticed the Controlino prices...that ends the fun.
Edited 2021-10-20 19:36 by Volhout