BT-Smart
| Authors: | Prof. Dr. Rainer Neumann |
|---|---|
| Version: | 0.1.6 of 2022/12/28 |
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
from btsmart import Button, Dimmer, MotorXM
btn = Button()
dim = Dimmer()
motor = MotorXM()
async def button_pressed():
print("Button pressed")
await asyncio.gather(
dim.set_level(100),
motor.run_at(speed=150, time=0.5)
)
async def button_released():
print("Button released")
await dim.set_level(0)
btn.on_press(button_pressed)
btn.on_release(button_released)
async def main():
btSmart: BTSmartController = None
try:
btSmart = await BTSmartController.discover()
except Exception:
print("No controller found - please press the connect button on the device")
return
btn.attach(btSmart, 1)
dim.attach(btSmart, 1)
motor.attach(btSmart, 2)
await btSmart.connect()
await asyncio.sleep(20)
await btSmart.disconnect()
asyncio.run(main())
