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Overview

This week is network and communication. The intent is to let 2 micro controllers communicate with each other and produce a certain output. We are using both bus and network communication. SPI and SCL pins are examples of bus addresses and UART is a network pin. I will be using the RP2040 XIAO in both of these steps.

individual assignment: write an application that interfaces a user with an input &/or output device that you made group assignment: compare as many tool options as possible

Notes from lecture:

  • There is a master class and sub class on the UART communication, represented by the TX and RX pins.
  • The difference between a bus and a network is that a bus is linear, and that network is more complex and looks more like a web, where one small network is a single node of the larger one.
  • Fiber guides the actual wire for wire communication.
    • In each band of frequency, there is a ISM:
    • Bands available for everyone.
  • How HTTP works: through the HTTP protocol, resources are exchanged between client devices and servers over the internet. Client devices send requests to servers for the resources needed to load a web page; the servers send responses back to the client to fulfill the requests.
Last update: December 27, 2023