Icebreakers

This project involves controlling microservos with ESP32, Arduino Nano, and Arduino Uno R3 microcontrollers using Arduino IDE.

Setup Instructions

1. Install Arduino IDE

Download and install the latest version of Arduino IDE from the official website.

2. Configure Board Support

For ESP32:

1. Open Arduino IDE
2. Go to File > Preferences (or Arduino IDE > Preferences on macOS)
3. In the "Additional Boards Manager URLs" field, add:

   https://espressif.github.io/arduino-esp32/package_esp32_index.json
   

4. Click OK
5. Go to Tools > Board > Boards Manager
6. Search for "ESP32"
7. Install "ESP32 by Espressif Systems"

For Arduino Nano and Uno R3:

These boards are supported by default in Arduino IDE - no additional board packages needed.

3. Select Your Board

Choose the appropriate board for your project:

For ESP32:

• Go to Tools > Board > ESP32 Arduino
• Select your ESP32 board (e.g., "ESP32 Dev Module")

For Arduino Nano:

• Go to Tools > Board > Arduino AVR Boards
• Select "Arduino Nano"
• Set Tools > Processor to "ATmega328P (Old Bootloader)" if using older Nano clones

For Arduino Uno R3:

• Go to Tools > Board > Arduino AVR Boards
• Select "Arduino Uno"

Then select the appropriate Port under Tools > Port

4. Required Libraries for Servo Control

For ESP32:

Install the ESP32Servo Library (Recommended):

• Go to Sketch > Include Library > Manage Libraries
• Search for "ESP32Servo"
• Install "ESP32Servo by Kevin Harrington"

For Arduino Nano and Uno R3:

Use the built-in Servo Library (already included with Arduino IDE):

• No additional installation required
• Include with #include <Servo.h>

5. Basic Servo Connections

ESP32:

• Servo Signal Wire: Connect to any GPIO pin (e.g., GPIO 18)
• Servo Power (Red): Connect to 5V or 3.3V depending on your servo
• Servo Ground (Brown/Black): Connect to GND

Arduino Nano:

• Servo Signal Wire: Connect to any digital pin (e.g., pin 9)
• Servo Power (Red): Connect to 5V
• Servo Ground (Brown/Black): Connect to GND

Arduino Uno R3:

• Servo Signal Wire: Connect to any digital pin (e.g., pin 9)
• Servo Power (Red): Connect to 5V
• Servo Ground (Brown/Black): Connect to GND

6. Test Your Setup

For ESP32:

#include <ESP32Servo.h>

Servo myServo;
int servoPin = 18;

void setup() {
  myServo.attach(servoPin);
}

void loop() {
  myServo.write(0);
  delay(1000);
  myServo.write(90);
  delay(1000);
  myServo.write(180);
  delay(1000);
}

For Arduino Nano and Uno R3:

#include <Servo.h>

Servo myServo;
int servoPin = 9;

void setup() {
  myServo.attach(servoPin);
}

void loop() {
  myServo.write(0);
  delay(1000);
  myServo.write(90);
  delay(1000);
  myServo.write(180);
  delay(1000);
}

Troubleshooting

ESP32:

• Upload Issues: Press and hold the BOOT button on ESP32 while uploading
• Port Not Found: Make sure ESP32 drivers are installed and the board is connected

Arduino Nano:

• Upload Issues: Try selecting "ATmega328P (Old Bootloader)" in Tools > Processor
• Port Issues: Install CH340 or FTDI drivers if using clone boards

Arduino Uno R3:

• Upload Issues: Check that the correct board and port are selected
• Port Issues: Ensure USB cable supports data transfer (not just power)

General:

• Servo Not Moving: Check power supply and wiring connections
• Erratic Servo Movement: Ensure adequate power supply for your servo's current requirements