The TinyML examples written in C++

The TinyML examples in C++, ported to the ESP32 can be found at https://github.com/espressif/tflite-micro-esp-examples/tree/master/examples

Hello World

There you can also find procedure to get the examples compiled. Let's start with the hello_world example.

We must first tell the idf.py that we are using an ESP32S3 chip:

idf.py set-target esp32s3

After that we may have to clean previous builds:

idf.py fullclean

and finally we can build the hello_world program:

idf.py build

Once the program is built we can flash it and connect the serial monitor to see the results:

idf.py flash monitor

The program repeatedly runs the induction for 20 angle values between 0 and 2Π. These values can easily be captured by redirecting the output to a file. I then used an editor to prepare the data to be plotted with gnuplot.

idf.py flash monitor | tee results.txt

Finally I wrote a simple Python program calculating the correct 20 sine values, which allows to compare them to the results from TinyML.

-- Uli Raich - 2023-09-02

Comments