This commit is contained in:
Paul 2024-01-08 12:59:03 +01:00
parent 0663c6f704
commit 68a1d8a972
1 changed files with 26 additions and 23 deletions

47
main.py
View File

@ -1,30 +1,33 @@
from pyLoraRFM9x import LoRa, ModemConfig
import serial
from digitalio import DigitalInOut, Direction, Pull
import board
import adafruit_rfm69
CS = DigitalInOut(board.CE1)
RESET = DigitalInOut(board.D25)
spi = busio.SPI(board.SCK, MOSI=board.MOSI, MISO=board.MISO)
rfm69 = adafruit_rfm69.RFM69(spi, CS, RESET, 915.0)
addr = '/tmp/virttty'
conn = serial.serial_for_url(addr)
# This is our callback function that runs when a message is received
def on_recv(payload):
print("From:", payload.header_from)
print("Received:", payload.message)
print("RSSI: {}; SNR: {}".format(payload.rssi, payload.snr))
conn.write(payload.message)
ser = serial.serial_for_url(addr)
# Use chip select 1. GPIO pin 5 will be used for interrupts and set reset pin to 25
# The address of this device will be set to 2
lora = LoRa(1, 5, 2, reset_pin = 25, modem_config=ModemConfig.Bw125Cr45Sf128, tx_power=14, acks=True)
lora.on_recv = on_recv
# Send a message to a recipient device with address 10
# Retry sending the message twice if we don't get an acknowledgment from the recipient
while True:
message = conn.readline()
if message != '':
print("new messsage:", message)
status = lora.send_to_wait(message, 10, retries=2)
if status is True:
print("Message sent!")
packet = None
packet = rfm69.receive()
ser_data = bytearray()
while ser.inWaiting() > 0:
recieved_byte = ser.read(1)
ser_data += recieved_byte
if ser_data == b'':
pass
else:
print("No acknowledgment from recipient")
print("new message:", ser_data.decode())
rfm69.send(ser_data)
if packet is None:
pass
else:
print("Received:", packet.decode())
ser.write(packet)