Hi,
I finally bought a new arduino and the problems seems to be solved. The fans now working properly and i connected the Ethernet module. Now i have web functions!!!!
Now i'm looking for ph and orp. The parts list i is the following
1. Atlas Scientific 4-SERIAL Multi Circuit UART Carrier Board
2. Because i can't find cheap 8:1 Serial Port Expander in Europe or ebay, i saw this.
3. Atlas Scientific COM-101 Pre-assembled Female BNC X 3
4. Atlas Scientific EZO-PH pH Circuit
5. Atlas Scientific EZO-ORP EZO ORP Circuit
6. Atlas Scientific EZO-EZ EZO Conductivity Circuit
7. Aquarium Hydroponic PH Controller Electrode Probe BNC Connector Meter Sensor
8. Accurate Measure ±1999mV ORP REDOX Electrode BNC Meter Tester + 300cm Cable
is there anything i'm gonna need?
Best regards