How Many SPI Devices Can Be Connected to a 51 Microcontroller?

How Many SPI Devices Can Be Connected to a 51 Microcontroller?

Recently, a student asked me: “How many SPI chips can I connect to my 51 microcontroller board? Is it not mentioned in the chip manual, or did I miss it? Moreover, I want to connect a screen, a memory card, a temperature sensor, and a wireless module.” Today, let’s discuss this topic. First, let’s talk … Read more