How to Use ESP32-S3-Pico: Examples, Pinouts, and Specs

The ESP32-S3-Pico is a compact microcontroller module developed by Waveshare. It is based on the ESP32-S3 chip, which features dual-core processing, Wi-Fi, and Bluetooth connectivity. This versatile module is designed for a wide range of IoT and embedded applications, offering a rich set of I/O options and powerful processing capabilities.

• IoT Devices: Smart home systems, environmental monitoring, and industrial IoT.
• Wearable Technology: Fitness trackers, smartwatches, and health monitoring devices.
• Embedded Systems: Robotics, automation, and control systems.
• Wireless Communication: Wi-Fi and Bluetooth-enabled devices for data transmission and remote control.

1. Power Supply: Connect the 3V3 pin to a 3.3V power source and the GND pin to ground.
2. Enable Pin: Connect the EN pin to a high logic level (3.3V) to enable the module.
3. GPIO Pins: Use the GPIO pins for digital input/output operations. Configure them as needed in your code.
4. Communication Interfaces: Utilize UART, SPI, I2C, and other communication interfaces for connecting peripherals.
5. Wi-Fi and Bluetooth: Use the built-in Wi-Fi and Bluetooth capabilities for wireless communication.

• Voltage Levels: Ensure all I/O pins operate at 3.3V to avoid damaging the module.
• Power Consumption: Utilize deep sleep modes to minimize power consumption in battery-powered applications.
• Antenna Placement: For optimal wireless performance, place the module away from metal objects and other sources of interference.
• Firmware Updates: Regularly update the firmware to benefit from the latest features and security patches.

#include <WiFi.h>

// Replace with your network credentials
const char* ssid = "your_SSID";
const char* password = "your_PASSWORD";

void setup() {
  // Initialize serial communication at 115200 baud rate
  Serial.begin(115200);

  // Connect to Wi-Fi network
  WiFi.begin(ssid, password);

  // Wait for connection
  while (WiFi.status() != WL_CONNECTED) {
    delay(1000);
    Serial.println("Connecting to WiFi...");
  }

  // Print the IP address
  Serial.println("Connected to WiFi");
  Serial.print("IP Address: ");
  Serial.println(WiFi.localIP());
}

void loop() {
  // Add your main code here, to run repeatedly
}

1. Wi-Fi Connection Issues:

   • Solution: Ensure the SSID and password are correct. Check for interference from other devices.

2. Module Not Powering On:

   • Solution: Verify the power supply voltage is 3.3V. Check connections to the EN pin.

3. GPIO Pins Not Responding:

   • Solution: Ensure the pins are correctly configured in the code. Check for short circuits or incorrect wiring.

4. High Power Consumption:

   • Solution: Utilize deep sleep modes and optimize code to reduce power usage.

• Check Connections: Ensure all connections are secure and correctly oriented.
• Use Serial Monitor: Utilize the serial monitor for debugging and monitoring the module's status.
• Update Firmware: Keep the module's firmware up to date to avoid known issues and benefit from improvements.
• Consult Documentation: Refer to the official Waveshare documentation and community forums for additional support.

By following this documentation, users can effectively integrate the ESP32-S3-Pico into their projects, leveraging its powerful features for a wide range of applications.