DFRobot FIREBEETLE BOARD-ESP32 - Using Peripherals with FireBeetle ESP32; Project 1: Serial Port Experiment

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Chapter 3: The Basics of Using Peripherals in the FireBeetle Board-ESP32
This chapter covers the basics of how to use peripherals in the FireBeetle Board-ESP32 by some
example projects. You can also modify the example projects below to finish your own projects.
The FireBeetle Board-ESP32 mainly includes UART; I2C; SPI; ADC; PWM; DAC; and integrated hall
sensor etc.
Project1: The experiment of Serial Port
In the first chapter, we have uploaded Blink, a flash program to test the LED light in the board.
Now, let’s print the timing data in every second with UART pin.
Components in need:
1 x FireBeetle Board-ESP32
Hardware linking method:
No need for other sensor. Please connect FireBeetle Board-ESP32 directly to your computer by USB
data wire.
Enter code
You would better enter the code manually than open Course->Item-1 to be familiar with it.
Sample code:
void setup() {
Serial.begin(115200);