How to Use Esp32 on Baseboard: Examples, Pinouts, and Specs

The ESP32 on Baseboard is a powerful microcontroller that combines the capabilities of the ESP32 chip with the convenience of a Baseboard for easy prototyping. The ESP32 is a low-cost, low-power system on a chip (SoC) series with Wi-Fi & dual-mode Bluetooth capabilities. The Baseboard typically extends the ESP32's accessibility, providing a platform for quick development and testing of IoT applications, smart home devices, and complex automation systems.

• Internet of Things (IoT) devices
• Home automation
• Wearable electronics
• Wireless sensor networks
• Voice encoding, music streaming, and MP3 decoding

• Microcontroller: ESP32-D0WD
• Operating Voltage: 3.3V
• Input Voltage: 7-12V
• Digital I/O Pins: 22
• Analog Input Pins: 6 (ADC 12-bit)
• Analog Output Pins: 2 (DAC 8-bit)
• Flash Memory: 4MB
• SRAM: 520 KB
• Clock Speed: 240MHz
• Wi-Fi: 802.11 b/g/n
• Bluetooth: v4.2 BR/EDR and BLE

Note: This is a simplified representation. The actual ESP32 on Baseboard may have more pins with multiple functions.

1. Powering the Board: Connect a power supply to the VIN and GND pins, ensuring that the voltage is within the specified range (7-12V).

2. Programming the Board: Use a micro USB cable to connect the ESP32 on Baseboard to your computer. Select the appropriate board and port in your IDE (e.g., Arduino IDE).

3. Connecting I/O: Attach sensors, actuators, or other peripherals to the GPIO pins, taking care to match the voltage levels and pin functions.

• Always ensure that the power supply is within the recommended range to prevent damage.
• Use voltage dividers or level shifters when interfacing with components that operate at different voltage levels.
• Avoid drawing too much current from the I/O pins to prevent damage; refer to the ESP32 datasheet for maximum ratings.
• Utilize the deep sleep mode for battery-powered applications to conserve energy.

#include <WiFi.h>

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

void setup() {
  Serial.begin(115200);
  
  // Connect to Wi-Fi
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.println("Connecting to WiFi...");
  }
  Serial.println("Connected to WiFi");
}

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

Note: This example demonstrates how to connect the ESP32 to a Wi-Fi network. Make sure to replace your_SSID and your_PASSWORD with your actual Wi-Fi credentials.

• Board not detected: Ensure the USB cable is properly connected and the correct drivers are installed.
• Failure to connect to Wi-Fi: Verify that the SSID and password are correct and that the ESP32 is within range of the router.
• Unexpected resets: Check for adequate power supply and stable voltage.

• If the board is not recognized by the computer, try a different USB cable or port, and ensure that the ESP32 drivers are installed.
• For Wi-Fi connectivity issues, ensure that the router is working properly and that the credentials provided in the code are accurate.
• Use a multimeter to check the power supply voltage to ensure it's within the recommended range.

Q: Can I use the ESP32 on Baseboard with a battery? A: Yes, you can power the board with a battery, but ensure that the voltage is within the recommended range.

Q: How many GPIO pins can be used for input/output? A: The ESP32 on Baseboard provides 22 digital I/O pins, but some may be used for specific functions like communication, so the actual number available for general use may vary.

Q: What is the maximum current that can be drawn from a GPIO pin? A: The maximum current per I/O pin should not exceed 12 mA.

Q: Can the ESP32 on Baseboard be used with the Arduino IDE? A: Yes, the ESP32 is supported by the Arduino IDE. You will need to install the ESP32 board package using the Boards Manager.

Note: This documentation is for informational purposes only. Always consult the official datasheet and technical references for comprehensive details and safety information.