https://github.com/wybiral/micropython-lora

MicroPython library for controlling a Semtech SX127x LoRa module over SPI.
https://github.com/wybiral/micropython-lora

Last synced: 2 months ago
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MicroPython library for controlling a Semtech SX127x LoRa module over SPI.

• Host: GitHub
• URL: https://github.com/wybiral/micropython-lora
• Owner: wybiral
• License: mit
• Created: 2020-08-24T20:20:59.000Z (almost 4 years ago)
• Default Branch: master
• Last Pushed: 2023-04-19T16:11:14.000Z (about 1 year ago)
• Last Synced: 2024-01-29T20:35:05.993Z (5 months ago)
• Language: Python
• Size: 7.81 KB
• Stars: 25
• Watchers: 5
• Forks: 6
• Open Issues: 3
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Lists

• awesome-micropython - micropython-lora - MicroPython library for controlling a Semtech SX127x LoRa module over SPI. (Libraries / Communications)

README

        
# micropython-lora

MicroPython library for controlling a Semtech SX127x LoRa module over SPI.

The logic for the code came from [this module](https://github.com/Wei1234c/SX127x_driver_for_MicroPython_on_ESP8266) but was streamlined and rewritten to be more MicroPython-friendly.

## Examples

### Initialize

The module requires an SPI bus connected to the SX127x, one pin to be `cs` (chip select), and one to be the `rx` (receive IRQ).

```

lora = LoRa(

    spi,

    cs=Pin(CS, Pin.OUT),

    rx=Pin(RX, Pin.IN),

)

```

### Sending

You can send bytes or a string (which will be encoded to bytes). A ValueError exception will be raised if the message exceeds the allowed payload length. Currently this method blocks until the message is sent.

```

lora.send('Hello world!')

```

### Receiving

Receiving is done by attaching a handler using `on_recv` and then calling `recv` to put the device in receive mode. Receive mode is non-blocking so other code can run after calling `recv` but if you call `send` afterward you will need to put the device back into receive mode again.

```

def handler(x):

    print(x)

lora.on_recv(handler)

lora.recv()

```