The Arduino UNO R4 WiFi collects all of this sensor data and makes the live data reflected on the Local Webpage instantly. To make the hardware connection easy to understand, we have given a ...

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.