You can do this
Author | Abhinaya Balaji
Editor | Su Ma
WeChat ID | csdn_iot
There are many devices on the market that provide the ability to monitor the home environment from a central interface. In this article, we will DIY a set of such monitoring equipment. To do this, we will use the B+ model Raspberry Pi development board and the official Raspberry Pi
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
1. Connection of LED
LED (Light Emitting Diode) is a solid-state semiconductor device that can convert electrical energy into visible light. It directly converts electricity into light. The core of the LED is a semiconductor chip, one end of which is attached to a bracket, one end is the negative electrode, and the other end is connected to the positive electrode of the power supply, encapsulating the entire chip in epoxy resin.Note:
