/IoT

The courseworks and codes of my own projects for the course IoT in Columbia.

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IoT

The courseworks and codes of my own projects for the course IoT in Columbia.

Lab Configuration：

  1. Follow the Basics steps.
  2. Install picocom in Mac.
  3. The step to open the shell of board：
    1. Initially source your python environment to the one you have installed mpfshell.
    2. Then in a appropriate path enter mpfshell.
    3. Then in the shell, enter open tty.SLAB_USBtoUART
    4. Open another terminal to enter sudo picocom -b 115200 /dev/tty.SLAB_USBtoUART.
  4. In the repl
    1. CTRL + C to interrupt the program;
    2. CTRL + E to enter the mode that you can paste your code;
    3. CTRL + D to run your code;
    4. CTRL + Q to exit repl.

Lab 3. Bus Communication: I2C and SPI

Hardware SPI bus

The hardware SPI is faster (up to 80Mhz), but only works on following pins: MISO is GPIO12, MOSI is GPIO13, and SCK is GPIO14. It has the same methods as the bitbanging SPI class above, except for the pin parameters for the constructor and init (as those are fixed).

Lab 5. Embedded Servers

android-google-cloud-speech-api

Google-Cloud-Speech-API

android-google-cloud-speech-api

ngrok:

Start a server： python3 -m http.server --cgi 8000

Make the server to be accessible from outside internet： ./ngrok http 8000