Data size no match with Raspberry Pi pico

[woto]

Hello Renzo,

Here is my code:

from machine import UART

from LoraWanE220.lora_e220 import LoRaE220, print_configuration
from LoraWanE220.lora_e220_operation_constant import ResponseStatusCode

uart1 = UART(1)

lora = LoRaE220(‘900T22D’, uart1, aux_pin=2, m0_pin=10, m1_pin=11)

code = lora.begin()
print(“Initialisation: {}”, ResponseStatusCode.get_description(code))

code, configuration = lora.get_configuration()

print(“Retrieve configuration: {}”, ResponseStatusCode.get_description(code))

print_configuration(configuration)

 

[woto]

It works.

But now I want to transmit at 868MHz instead of 873MHz. Where can I set this?

Best regards,

Woto

[woto]

The answer from program is:
Initialization: {} Success
Retrieve configuration: {} Success
—————————————-
HEAD : 0xc1 0x0 0x8

AddH : 0x0
AddL : 0x0

Chan : 23 -> 873

SpeedParityBit : 0b0 -> 8N1 (Default)
SpeedUARTDatte : 0b11 -> 9600bps (default)
SpeedAirDataRate : 0b10 -> 2.4kbps (default)

OptionSubPacketSett: 0b0 -> 200bytes (default)
OptionTranPower : 0b0 -> 22dBm (Default)
OptionRSSIAmbientNo: 0b0 -> Disabled (default)

TransModeWORPeriod : 0b11 -> 2000ms (default)
TransModeEnableLBT : 0b0 -> Disabled (default)
TransModeEnableRSSI: 0b0 -> Disabled (default)
TransModeFixedTrans: 0b0 -> Transparent transmission (default)
—————————————-

Here you can see, the Chan-Value is 23, but i have changed it to 18 in line 165 of lora_e220.py.

[woto]

I have now implemented the setting of the set_channel property in the library:

def set_channel(self, CHAN = 23):
self.CHAN = CHAN

In the programme I then added two lines of code after lora.getconfiguration:

code, configuration = lora.get_configuration()
configuration.set_channel(18)
code, configuration = lora.set_configuration(configuration)

Now it works.

best regards
Woto

[Renzo Mischianti]

Hi woto,
you don’t need to change the library.
You can find how to use the library for e32 (similar to E220) in this article.
EByte LoRa E32 & MicroPython: a detailed look at configuration – 3
I create a specified tutorial for E220 soon.

code, configuration = lora.get_configuration()
configuration.CHAN = 18
code, configuration = lora.set_configuration(configuration)

Bye Renzo

• This reply was modified 1 year, 4 months ago by Renzo Mischianti.
• This reply was modified 1 year, 4 months ago by Renzo Mischianti.

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