Invalid Version

[ReadieS]

Hi,
I keep getting an error when I try and use this code. sometimes it works flawlessly and rather than the error I get "SX Verrsion 18" but 50% of the time i get the following

MPY: soft reboot error with BME280 Module Found DS devices: [] error with DS18 Module Traceback (most recent call last): File "<stdin>", line 31, in <module> File "sx127x.py", line 121, in __init__ Exception: Invalid version.

my code begins with:
`import machine
import time
import math
try:
import BME280_Read
except:
print("error with BME280 Module")
try:
import DS18_Read
except:
print("error with DS18 Module")
import wind_direction
import statistics
import datetime
import _thread
import struct
import ujson

#lora specific setup for upylora
from config import *
from machine import Pin, SoftSPI
from sx127x import SX127x
import sender

device_spi = SoftSPI(baudrate = 10000000,
polarity = 0, phase = 0, bits = 8, firstbit = SoftSPI.MSB,
sck = Pin(device_config['sck'], Pin.OUT, Pin.PULL_DOWN),
mosi = Pin(device_config['mosi'], Pin.OUT, Pin.PULL_UP),
miso = Pin(device_config['miso'], Pin.IN, Pin.PULL_UP))

lora = SX127x(device_spi, pins=device_config, parameters=lora_parameters)
#end of lora specific setup
...............
`

I'm using a LILYGO TTGo T3 V1.6 board

Here is the snippet when it does work
MPY: soft reboot error with BME280 Module Found DS devices: [] error with DS18 Module SX version: 18 Measuring wind direction for 5 seconds...

[ReadieS]

I think I have sorted it. in sx127x.py I have substituted
`# check hardware version
init_try = True
re_try = 0
while init_try and re_try < 10:
version = self.read_register(REG_VERSION)
re_try = re_try + 1
if version != 0:
init_try = False
if version != 0x12:
raise Exception('Invalid version.')

    if __DEBUG__:
        print("SX version: {}".format(version))

`

For the folowing

` # Number of consecutive matching versions required
consecutive_matches = 2

    # Initialize variables to track consecutive matches
    matched_versions = 0
    last_version = None

    # check hardware version
    while matched_versions < consecutive_matches:
        init_try = True
        re_try = 0
        while init_try and re_try < 10:
            version = self.read_register(REG_VERSION)
            re_try = re_try + 1
            if version != 0:
                init_try = False
            else:
                time.sleep(0.002)  # Pause for 2 milliseconds between retries

        if version != last_version:
            last_version = version
            matched_versions = 1
        else:
            matched_versions += 1

    if version != 0x12:
        raise Exception('Invalid version.')

    if __DEBUG__:
        print("SX version: {}".format(version))

`

also had to add import time at the top