blueroomelectronics
Well-Known Member
This kit has ethernet & home control in mind, I'm seriously considering 5 (yes five) relays on the design as this would be ideal for a two stage HVAC controller (Furnace & AC). Of course you could use more than one if you need more I/O.
Think of it as a powerful ELK-MM443 controller
**broken link removed**
Well as usual I'm working on the next kit before the last is finished, I like to stir the ideas around before commiting them to a PCB.
The PIC18Fxxxx based kit will have...
Would it be more useful to have 4 relays and 4 inputs?
or 6 relays and 2 inputs
or optoisolated inputs
or analog / digital inputs...
Pictured below is a similar device.
**broken link removed**
Think of it as a powerful ELK-MM443 controller
**broken link removed**
Well as usual I'm working on the next kit before the last is finished, I like to stir the ideas around before commiting them to a PCB.
The PIC18Fxxxx based kit will have...
- Ethernet ENC28J60
- RS485 (optionally RS232 or possibly RS422) opinions?
- SPI EEPROM
- 32768Hz watch crystal on TMR1
- ICD Inchworm connector
Would it be more useful to have 4 relays and 4 inputs?
or 6 relays and 2 inputs
or optoisolated inputs
or analog / digital inputs...
Pictured below is a similar device.
**broken link removed**