python

OSPlink and Python

Python can be used to control an OSP chain, by sending commands to the command interpreted that is part of the firmware in the ESP32. This is still a proof-of-concept in an experimental phase.

Ingredients

The experiment in this directory consists of the following ingredients.

• OSP32 board with the ESP32 flashed with the osplink.ino firmware.

• An experimental Python library libosplink. It contains two modules: cmdint.py interacts with the command interpreter in the ESP (sending and receiving strings over serial), and module osplink.py makes the ESP commands available on high level in Python.

  For example the python function osp_goactive(<addr>) in the Python lib libosplink.osplink uses the Python lib libosplink.cmdint to send the string "osp send <addr> goactive" over serial. The command interpreter in the ESP would receive that string and call the C function aoosp_tele_goactive(<addr>).

• A simple Python example excmdint. A Python program that sends plain command strings like "echo Hello, world!"; thus only using libosplink.cmdint.

• A simple Python example exosplink. A Python program that calls high level functions like osplink.osp_setpwmchn(0x001,0,0x3333,0x0000,0x0000); thus using libosplink.osplink on top of libosplink.cmdint.

Running an experiment

Try one of the two examples

• command interpreter example excmdint;

• osplink example exosplink.

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