Ok, now I have tried to send a string with the following settings:
Sender
ADDH = 00
ADDL = 03
CHAN = 18
FIXED TRANSMISSION
RSSI Enabled
Here I use the Arduino library.
and call the function as follows:
ResponseStatus rs = e220ttl.sendFixedMessage(0, DESTINATION_ADDL, 18, "Hello, world?");
Receiver
ADDH = 00
ADDL = 03
CHAN = 18
FIXED TRANSMISSION
RSSI Enabled
Here I use the Micropython library as follows:
while True:
if lora.available() > 0:
...
Unfortunately, the receiver does not receive a string.