Simple Serial Monitor & API

I built a serial monitor with writing & reading functionality. It can be used for connecting to Arduino, ESP, ...

There is a...

1) Command Line Interface (CLI)

- Start with e.g. `$ python serialmonitor.py --port /dev/ttyUSB0 --baud 9600`
- Reading starts automatically
- If you want to write to device you have to press Ctrl + C 
- If you want to exit: Press Ctrl + C two times

2) Application Programming Interface (API)

```python
from src import uart_api

# Instanciates a class for the connection to device and stores incoming buffer
api = uart_api.UART_API(port, baudrate) 

# returns readings in String Format
api.read()

# writes String data to device
api.write(data)

# closes the port immediately
api.close()
```

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Thanks to pySerial