Prerequisites¶

Before you begin assembling the IoT Toolkit, ensure you have the following tools and software installed.

Required Software¶

Arduino IDE¶

The Arduino IDE is required for programming the ESP32.

• Download: arduino.cc/en/software
• Version: 2.0 or later recommended
• Installation: Follow the installer instructions for your operating system

ESP32 Board Support¶

After installing Arduino IDE, add ESP32 board support:

1. Open Arduino IDE
2. Go to File > Preferences
3. Add to Additional Boards Manager URLs:

   https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_index.json
   

4. Go to Tools > Board > Boards Manager
5. Search for "ESP32" and install "ESP32 by Espressif Systems"

USB Drivers¶

Windows¶

Install CP210x or CH340 drivers depending on your ESP32 board: - CP210x: Silicon Labs Drivers - CH340: Usually auto-installs or available from manufacturer

macOS¶

Drivers are typically not required for macOS 10.15+, but may need to approve the device in Security settings.

Linux¶

Add your user to the dialout group:

sudo usermod -a -G dialout $USER

Required Hardware Tools¶

Basic Tools¶

• USB cable (USB-A to USB-C or USB-A to Micro-USB, depending on ESP32 board)
• Breadboard or prototyping board
• Jumper wires (male-to-male, male-to-female, female-to-female)
• Wire strippers (optional but helpful)
• Multimeter (for troubleshooting)

Soldering (Optional)¶

For permanent installations: - Soldering iron - Solder wire (rosin-core, 0.8mm) - Helping hands or PCB holder - Desoldering wick (for corrections)

Knowledge Prerequisites¶

Recommended Skills¶

• Basic electronics concepts (voltage, current, circuits)
• Familiarity with programming concepts (variables, functions, loops)
• Understanding of serial communication basics
• Basic computer file management

Helpful but Not Required¶

• Previous Arduino experience
• Knowledge of networking protocols (WiFi, TCP/IP)
• Database basics

Verify Your Setup¶

Test Arduino IDE¶

1. Open Arduino IDE
2. Select Tools > Board > ESP32 Arduino > ESP32 Dev Module
3. Select your COM port (Tools > Port)
4. Try uploading a simple example:
5. File > Examples > 01.Basics > Blink
6. Click Upload button

Test ESP32 Connection¶

After uploading, open Serial Monitor (Tools > Serial Monitor) and set baud rate to 115200. You should see ESP32 boot messages.