btsmart 0.1.3

A package providing convenient access to the Fischertechnik BT-Smart Controller

Authors:

Prof. Dr. Rainer Neumann

Version:

0.1.2 of 2022/12/26

A small library that helps to build simple projects based on the Fischertechnik BT-Smart Controller using Bluetooth LE. The library uses the bleak libray to handle the BLE protocol and asyncio to access device features.

Installation

pip install btsmart

Getting Started

Assume we have attached a Button to the first input of the Controller, as simple lamp to output 1 and a motor element to output 2. Then we can use the library like this

import asyncio
from btsmart import BTSmartController, Button, Dimmer, MotorXM

btn = Button()
dim = Dimmer()
motor = MotorXM()

async def butten_pressed():
    print("Button pressed")
    await asyncio.gather(
        dim.set_level(100),
        motor.run_at(speed=150, time=0.5)
    )

async def butten_released():
    print("Button released")
    await dim.set_level(0)

async def main():
    btSmart = await BTSmartController.discover()
    if btSmart is not None:
        await btSmart.connect()

        btn.pressed = butten_pressed
        btn.released = butten_released

        btn.attach(btSmart, 1)
        dim.attach(btSmart, 1)
        motor.attach(btSmart, 2)

        await asyncio.sleep(30)

        await btSmart.disconnect()

asyncio.run(main())