With the power of the Arduino UNO R4 WiFi, you can create a dynamic weather dashboard ... Here, I used macros to hold the pin data of the Rain sensor, DHT11 sensor, and MQ135 sensor, where the sensor ...

ℹ️ You can also get examples provided with the library in the Arduino IDE through the menu File > Examples ... can use the "Generic View" in the GPIO Web Application to see GPIO pin activites live ...

It’s a significant update. The Arduino UNO and Arduino Mega 2560 update the Duemilanove and Mega respectively. They now use an ATMega8U2 instead of an FTDI USB to serial converter chip.