I explain and show step by step how to build a plant watering system with ESP8266, capacitive soil moisture sensor, and peristaltic pump.

During the first day of working on this project, I used a transistor to control the water pump.

Git command to create a project from the template:
git clone [email protected]:ttarnowski/esp8266-project-template-gtest.git plant-watering-system

You can find the code from this episode here:
https://github.com/ttarnowski/esp8266...

Social Media:
Twitter:   / t_tarnowski​  
Linkedin:   / tomasz-ta...​  
Website: https://tomasztarnowski.com
GitHub: https://github.com/ttarnowski​

Parts and components used in the video:
- ESP8266 microcontroller (~5$ a piece):
UK: https://www.amazon.co.uk/s?k=nodemcu+...
US: https://www.amazon.com/s?k=esp8266
- Peristaltic pump:
UK: https://www.amazon.co.uk/Denash-Peris...
US: https://www.amazon.com/Yanmis-Perista...
AliExpress: https://www.aliexpress.com/item/10050...
- Breadboard:
UK: https://www.amazon.co.uk/s?k=breadboard
US: https://www.amazon.com/s?k=breadboard
- AC to DC Adapter:
UK: https://www.amazon.co.uk/s?k=ac%2Fdc+...
US: https://www.amazon.com/s?k=ac%2Fdc+ad...
- Capacitive moisture sensor:
UK: https://www.amazon.co.uk/s?k=capaciti...
US: https://www.amazon.com/s?k=capacitive...
- Resistor kit:
UK: https://www.amazon.co.uk/s?k=resistors
US: https://www.amazon.com/s?k=resistors
- Diode kit
UK: https://www.amazon.co.uk/s?k=led+diod...
US: https://www.amazon.com/s?k=led+diode+kit
- 1x PN2222A Transistor:
UK: https://www.amazon.co.uk/s?k=pn2222a
US: https://www.amazon.com/s?k=pn2222a
- Wires:
UK: https://www.amazon.co.uk/s?k=arduino+...
US: https://www.amazon.com/s?k=arduino+wires
- Plastic tubes:
UK: https://www.amazon.co.uk/s?k=pvc+clea...
US: https://www.amazon.com/s?k=pvc+clear+...
- micro USB cable:
UK: https://www.amazon.co.uk/s?k=micro+us...
US: https://www.amazon.com/s?k=micro+usb+...
or (for mac)
UK: https://www.amazon.co.uk/s?k=type+c+t...
US: https://www.amazon.com/s?k=type+c+to+...
- you also need a bottle and a glass

Software used in the video:
1. Visual Studio Code IDE:
https://code.visualstudio.com/
2. C/C++ VSCode extension:
https://marketplace.visualstudio.com/...
3. Clang-Format VSCode extension:
https://marketplace.visualstudio.com/...
4. PlatformIO VSCode extension:
https://marketplace.visualstudio.com/...

PN2222A transistor datasheet:
https://cdn-shop.adafruit.com/datashe...

Thanks for watching and see you tomorrow!

00:00 Intro
00:29 Hardware components presentation
03:15 Calculating the resistor value
08:25 Circuit assembly
13:20 Going through the circuit
14:25 Coding part
21:02 Testing the pump (no water source)
21:48 Testing if the pump pumps water
25:05 The end