【Follow me Season 2 Episode 2】Unboxing + Environment Setup + Blink & Serial Port Printing

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【Follow me Season 2 Episode 2】Unboxing + Environment Setup + Blink & Serial Port Printing [Copy link]

 

Unpacking of materials

This event is about Arduino UNO R4 WiFi. There are tasks related to using MQTT protocol to access the open source smart home platform HA (HomeAssistant). Therefore, we purchased an additional Raspberry Pi zerow for deploying HA.

The materials arrived about two weeks after I placed the order, and the Raspberry Pi ZeroW was also equipped with a case and heat sink.

Environment Construction

Since it is an Arduino board, the development environment is naturally Arduino.

After installing and opening Arduino, search and install the UNO R4 WIFI support library in the development board manager.

Then configure the development board and serial port.

Blink & Serial Printing

Check the LED pin information: LED_BUILTIN P102.

BLINK is implemented by demonstrating how to control the high and low levels of the LED pins and print out the LED status.

void setup() {
  // put your setup code here, to run once:
  //配置波特率
  Serial.begin(115200);
  while (!Serial) { }
  //配置LED引脚为输出模式
  //pinMode(102, OUTPUT);
  pinMode(LED_BUILTIN, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  //演示控制板载LED亮灭，并且打印LED状态
  digitalWrite(LED_BUILTIN, LOW);
  printf("LED ON\n");
  delay(1000);
  digitalWrite(LED_BUILTIN, HIGH);
  printf("LED OFF\n");
  delay(1000);
}

Effect

blink_print.ino

戈壁滩上的辉煌

I think Arduino UNO R4 WiFi is quite interesting. Can I use this board for everything?

eew_gz8e7C

The Glory of the Gobi Desert was published on 2024-9-13 09:00 I think Arduino UNO R4 WiFi is quite interesting. Can it be used for all kinds of tasks?

Yes, HA can be installed on PC via docker