basnot.blogg.se - Lora power up time before send first message

This module is really intended for simple single packet messages like 'ON', 'OFF', etc. Don't try to receive kilobytes of data or else you'll lose packets. For your application it will work best to only receive small, single packet messages at a time. Unlike the Arduino versions of the RFM9x library there is no interrupt support which means when a packet is received it must be immediately processed by the Python code or it could be lost.

Receiving packets is a 'best effort' in pure Python code.

The size of the radio's internal buffer dictates this limit so if you want to send longer messages you'll need to break them into a series of smaller send calls in your application code.

You can only send and receive packets up to 252 bytes in length at a time.

Keep these in mind as you think about projects using the RFM9x and CircuitPython: One thing to be aware of before you use the RFM9x series of radios with CircuitPython are some of the limitations and design considerations for its module.