@salman sir, this is the error I’m getting displayed on the serial monitor, despite unplugging the RX and TX cables before uploading the sketch and then again plugging them in after the sketch has been uploaded:
And, these are the error logs (or messages) I’m getting during upload failure, despite connecting the RX of radio to the TX of arduino, and the TX of radio to the RX of arduino:
Error messages of rf95_client: Arduino: 1.8.13 (Windows Store 1.8.42.0) (Windows 10), Board: “Arduino Uno”
Sketch uses 5778 bytes (17%) of program storage space. Maximum is 32256 bytes.
Global variables use 753 bytes (36%) of dynamic memory, leaving 1295 bytes for local variables. Maximum is 2048 bytes.
avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0x52
avrdude: stk500_getsync() attempt 2 of 10: not in sync: resp=0x46
avrdude: stk500_getsync() attempt 3 of 10: not in sync: resp=0x39
avrdude: stk500_getsync() attempt 4 of 10: not in sync: resp=0x35
avrdude: stk500_getsync() attempt 5 of 10: not in sync: resp=0x20
avrdude: stk500_getsync() attempt 6 of 10: not in sync: resp=0x63
avrdude: stk500_getsync() attempt 7 of 10: not in sync: resp=0x6c
avrdude: stk500_getsync() attempt 8 of 10: not in sync: resp=0x69
avrdude: stk500_getsync() attempt 9 of 10: not in sync: resp=0x65
avrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0x6e
An error occurred while uploading the sketch
Error messages of rf95_server: Arduino: 1.8.13 (Windows Store 1.8.42.0) (Windows 10), Board: “Arduino Uno”
Sketch uses 5716 bytes (17%) of program storage space. Maximum is 32256 bytes.
Global variables use 719 bytes (35%) of dynamic memory, leaving 1329 bytes for local variables. Maximum is 2048 bytes.
avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0x52
avrdude: stk500_getsync() attempt 2 of 10: not in sync: resp=0x46
avrdude: stk500_getsync() attempt 3 of 10: not in sync: resp=0x39
avrdude: stk500_getsync() attempt 4 of 10: not in sync: resp=0x35
avrdude: stk500_getsync() attempt 5 of 10: not in sync: resp=0x20
avrdude: stk500_getsync() attempt 6 of 10: not in sync: resp=0x73
avrdude: stk500_getsync() attempt 7 of 10: not in sync: resp=0x65
avrdude: stk500_getsync() attempt 8 of 10: not in sync: resp=0x72
avrdude: stk500_getsync() attempt 9 of 10: not in sync: resp=0x76
avrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0x65
An error occurred while uploading the sketch
Could there be a fault in the sketch?