How to Use ESP32_30Pin_蓝色电源模块: Examples, Pinouts, and Specs

The ESP32_30Pin_蓝色电源模块 by SRYY (Part ID: ESP32_UNO尺寸蓝色电源板) is a versatile microcontroller module featuring 30 pins, Wi-Fi, and Bluetooth capabilities. This module is widely used in Internet of Things (IoT) applications, prototyping, and various embedded systems projects. Its compatibility with the Arduino IDE makes it a popular choice among hobbyists and professionals alike.

1. Powering the Module:

   • Connect the VIN pin to a 5V power source (e.g., USB).
   • Ensure the GND pin is connected to the ground of the power source.

2. Programming the Module:

   • Connect the module to your computer using a USB cable.
   • Open the Arduino IDE and select "ESP32 Dev Module" from the board manager.
   • Write your code and upload it to the module.

3. Connecting Peripherals:

   • Use the GPIO pins to connect sensors, actuators, and other peripherals.
   • Ensure the peripherals are compatible with the 3.3V logic level of the ESP32.

• Voltage Levels: Ensure all connected peripherals operate at 3.3V to avoid damaging the ESP32.
• Heat Management: The ESP32 can get warm during operation. Ensure proper ventilation or use a heat sink if necessary.
• Pin Multiplexing: Some pins have multiple functions (e.g., ADC, UART). Refer to the ESP32 datasheet for detailed pin functions.

// Example code to blink an LED connected to GPIO2

void setup() {
  // Initialize GPIO2 as an output pin
  pinMode(2, OUTPUT);
}

void loop() {
  // Turn the LED on
  digitalWrite(2, HIGH);
  delay(1000); // Wait for 1 second

  // Turn the LED off
  digitalWrite(2, LOW);
  delay(1000); // Wait for 1 second
}

1. Module Not Detected by Computer:

   • Ensure the USB cable is properly connected.
   • Try a different USB cable or port.
   • Install the necessary drivers for the ESP32.

2. Upload Errors in Arduino IDE:

   • Check the selected board and port in the Arduino IDE.
   • Press and hold the "EN" button on the module while uploading.

3. Wi-Fi Connection Issues:

   • Ensure the correct SSID and password are used.
   • Check the Wi-Fi signal strength and reduce the distance to the router.

• Serial Monitor: Use the Serial Monitor in the Arduino IDE to debug and print error messages.
• Power Supply: Ensure a stable power supply. Unstable power can cause unexpected behavior.
• Firmware Updates: Keep the ESP32 firmware updated to the latest version for improved performance and bug fixes.

By following this documentation, users can effectively utilize the ESP32_30Pin_蓝色电源模块 in their projects, ensuring optimal performance and reliability.