Arduino Habitat Control v1.0

Design by: skasti

Board is to be used to control lighting/heating/rain-system for reptile habitat, but can be used to control anything you can control with relays.
3x Sense-ports (5v, gnd,digital, analog) for inputs
4x Relay outputs with NO* and NC* option
1x Serial-port for connecting to other device (I plan on connecting a Nextion Enhanced display)

Github repository:
https://github.com/skasti/HabitatControl

Can use separate power supply for relays (shared ground).

I would not advice drawing more than 5A through each channel, or about 1kW@230V. Most terrarium-equipment seems to be 40-200W, so this is probably well within reason.

R1-4: 1k
T1-4: 2N3904
D1-4: 1N4007
Relay1-4: SRD-12VDC-SL-C or SRD-5VDC-SL-C

Designed to be used with Arduino Nano as controller

*NO=Normally Open
*NC=Normally Closed