The following lists contain the parts, tools and software needed to complete "Node-RED ESP32: Make a Terrarium Controller".
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Any Raspberry Pi.
I use a Raspberry Pi 2, and have tested with Raspberry Pi Zero W and Raspberry Pi 4
ESP32 Dev Kit V4
A 10 KΩ potentiometer to simulate the soil humidity sensor.
A 5V DC motor to simulate a water pump.
A soil humidity sensor. You have two options:
1. Best, more expensive: Capacitive Soil Moisture Sensor (Corrosion Resistant)
2. Short life span, cheaper: resistive analog soil humidity sensor.
A Micro Submersible Water Pump (Machifit JT80SL DC 3-6V Water Pump 120L/H Ultra-quiet Micro Horizontal Submersible Mini Water Pump)
A hose for the pump (1m Length Food Grade Translucent Silicone Tubing Hose 1mm To 8mm Inner Diameter Tube)
A DHT22 sensor in special adapter casing (AAM2302B DHT22 Single Bus Digital Temperature and Humidity Sensor Module Probe AM2302 Adapter Plate)
A TIP 122 Darlington transistor
A Shottky diode, IN4007.
Assorted resistors, from 300 Ohm to 500 KOhm.
Here's the tools that I use in this course:
In this course, I have made frequent use of my bench-top multi-meter and my bench-top power supply. The other tools, such as the soldering station, are secondary and useful to assemble some of the circuit that I used.
TENMA 72-7730A digital autoranging multimeter (handheld).
(Used in the course) Rigol DM3058E Digital Multimeter (benchtop).
KORAD KA3005P or equivelant- Programmable Precision Variable Adjustable 30V, 5A DC Linear Power Supply (benchtop power supply).
A large breadboard (or at least two mini-breadboards).
Here's the software that I use in this course:
To complete this course you will also need these resources: