Level sensor *:
![Image](https://lh3.googleusercontent.com/-B-WnRa1v7YI/U2UBuxTGM8I/AAAAAAAAA8c/6cC6DtTBV7U/w600-h339-no/level.png)
Dosing pump *:
PH, ORP and EC *:
Buzzer *:
Jebao pump:
Cut only the wire yellow/green of your Jebao controller and put a switch of 3 poles as shown in the image below.
Stripping the wire - 24V and join with GND from arduino.
The result should be something as:
If do you want buy pumps without controller make a board like this:
Here you can find the cable with waterproof connector for Jebao pumps.
LED using a MOSFET:
PCF8575 *:
Fan:
WIFI module *:
![Image](https://raw.githubusercontent.com/FernandoGarcia/Ferduino_with_webcontrol_beta/master/Nodemcu/Circuit/Wiring.png)
* Turn your life easy, buy Ferduino Mega 2560 and forget all this.
![Image](http://ferduino.com/wp-content/uploads/2014/07/Top-side.jpg)