Basic LoRa connection example, sending and receiving data. In LoRa-MAC mode the LoRaWAN layer is bypassed and the radio is used directly. The data sent is not formatted or encrypted in any way, and no addressing information is added to the frame.
For the example below, you will need two F1 starter kits. Run the code below on the two F1 starter kits, you will see the word ‘Hello from LoRa chat’ being received on both sides.
# ---------------------------------------------------------------------------- # # Copyright (c) 2023-2024 SG Wireless - All Rights Reserved # # Permission is hereby granted, free of charge, to any person obtaining a copy # of this software and associated documentation files(the “Software”), to deal # in the Software without restriction, including without limitation the rights # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell # copies of the Software, and to permit persons to whom the Software is # furnished to do so, subject to the following conditions: # # The above copyright notice and this permission notice shall be included in # all copies or substantial portions of the Software. # # THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN # THE SOFTWARE. # # Desc Implements simple lora chat demo for the lora-raw mode # should be run on two different devices. # ---------------------------------------------------------------------------- # # disable logs import logs logs.filter_subsystem('lora', False) # import the responsible module import lora # switch to lora raw if not there if lora.mode() != lora._mode.RAW: lora.mode(lora._mode.RAW) # define the callback def lora_callback(event, bytes): if event == lora._event.EVENT_RX_DONE: print(bytes) pass lora.callback(handler=lora_callback) # start continuous reception lora.recv_cont_start() # start chating by sending lora.send('Hello from LoRa chat') # --- end of file ------------------------------------------------------------ #
