How to Use ESP32 Lite V1.0.0 Development Board: Examples, Pinouts, and Specs

The ESP32 Lite V1.0.0 Development Board is a compact and versatile development platform based on the ESP32 chip. It integrates Wi-Fi and Bluetooth capabilities, making it an excellent choice for Internet of Things (IoT) projects, smart devices, and rapid prototyping. Its small form factor and robust features allow developers to create connected applications with ease.

• IoT devices and smart home automation
• Wireless sensor networks
• Wearable technology
• Prototyping for connected devices
• Bluetooth-enabled applications
• Low-power data logging and monitoring systems

The ESP32 Lite V1.0.0 Development Board is built around the ESP32 chip, which offers dual-core processing, integrated Wi-Fi, and Bluetooth functionality. Below are the key technical details:

The ESP32 Lite V1.0.0 Development Board features a standard pinout for easy integration into projects. Below is the pin configuration:

The ESP32 Lite V1.0.0 Development Board is easy to use and can be programmed using the Arduino IDE or other development environments like ESP-IDF. Below are the steps to get started:

1. Install Drivers: Ensure that the USB-to-serial driver for the ESP32 is installed on your computer.
2. Install Arduino IDE: Download and install the Arduino IDE from the official website.
3. Add ESP32 Board Support:
   • Open the Arduino IDE.
   • Go to File > Preferences.
   • In the "Additional Board Manager URLs" field, add the following URL:
     https://dl.espressif.com/dl/package_esp32_index.json
   • Go to Tools > Board > Boards Manager, search for "ESP32", and install the package.
4. Select the Board:
   • Go to Tools > Board and select "ESP32 Dev Module".
   • Select the correct COM port under Tools > Port.

The following example demonstrates how to blink an LED connected to GPIO2:

// Define the GPIO pin for the LED
#define LED_PIN 2

void setup() {
  // Set the LED pin as an output
  pinMode(LED_PIN, OUTPUT);
}

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

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

• Power Supply: Ensure the board is powered with a stable 5V input via USB or VIN pin.
• GPIO Voltage Levels: The GPIO pins operate at 3.3V. Avoid applying 5V directly to the pins.
• Boot Mode: To enter boot mode, hold the BOOT button while pressing the EN button.

1. Board Not Detected in Arduino IDE:

   • Ensure the correct USB driver is installed.
   • Check the USB cable for data transfer capability (some cables are power-only).
   • Verify the correct COM port is selected in the Arduino IDE.

2. Upload Fails with "Failed to Connect" Error:

   • Hold the BOOT button while uploading the code.
   • Ensure the correct board and port are selected in the IDE.

3. Wi-Fi Connection Issues:

   • Verify the SSID and password in your code.
   • Ensure the router is within range and supports 2.4 GHz Wi-Fi (ESP32 does not support 5 GHz).

4. GPIO Pin Not Working:

   • Check if the pin is being used for another function (e.g., ADC, UART).
   • Avoid using reserved pins like GPIO6–GPIO11, which are connected to the internal flash.

Q: Can I power the ESP32 Lite V1.0.0 with a battery?
A: Yes, you can power the board using a 3.7V LiPo battery connected to the 3V3 pin or a 5V source connected to the VIN pin.

Q: Does the board support OTA (Over-the-Air) updates?
A: Yes, the ESP32 supports OTA updates, which can be implemented using the Arduino IDE or ESP-IDF.

Q: How do I reset the board?
A: Press the EN button to reset the board.

Q: Can I use the ESP32 Lite V1.0.0 for Bluetooth audio applications?
A: Yes, the ESP32 supports Bluetooth audio via the A2DP profile, but additional libraries and configurations are required.

By following this documentation, you can effectively use the ESP32 Lite V1.0.0 Development Board for a wide range of applications.