Nutrient dosing system (EC/ppm) - Hydroponics (Arduino)

In this video, I show you how to build an automatic nutrient dosing system (EC/ppm) for your Hydroponics system using an Arduino.
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Arduino playlist:
• Arduino
Hydroponics & Aquaponics Playlist:
• Hydroponics & Aquaponics
Component list
1 x Arduino Uno any Arduino UNO board
1 x programming cable
1 x small breadboard
1 x 10k thermistors waterproof with metal casing any type
1 x 10k resistors 1/4W or 1/2W
1 x 1 k resistor
1 x %V 2 relay module for smaller pumps a 10A one will work fine
male to female breadboard connection wires
male to male breadboard connection wires