After 7 months of R & D it's time to put the project into production. Boards arrived today and i am happier than a pig in...
The arduino dock really simplified the design for me and I now have a really awesome little programmable unit with a counter input, 2 analog/4-20ma inputs, 4 digital inputs, 2 fet outputs, RTC, RS485 port and an OLED for good measure.
The smaller piggyback board is ESP12 powered and has 4-20ma input, 2 digital inputs, one output, load cell amplifier, RTC and OLED
I have christened the board "IoT ONE" - hope you onioneers approve! :)