Raspberry Pi and Arduino Serial Communication with DHT11
Arduino has a rich set of external interfaces, and the biggest difference from Raspberry Pi's IO ports is that Arduino has analog input interfaces that can measure analog values on IO ports. The communication scheme between Arduino and Raspberry Pi via serial (Serial) generally has two methods: one is through Raspberry Pi GPIO serial communication, and the second is through USB serial communication.
Clearly, the USB serial communication between Arduino and Raspberry