Compilation error: 'Serial1' was not declared in this scope
Closed this issue · 2 comments
I use arduino uno+tmc2209, uart mode.
Each example reports the same error during compilation
C:\Users\Administrator\AppData\Local\Temp.arduinoIDE-unsaved2023611-17332-1axbd5w.itbwh\TestCommunication\TestCommunication.ino:3:34: error: 'Serial1' was not declared in this scope
HardwareSerial & serial_stream = Serial1;
^~~~~~~
C:\Users\Administrator\AppData\Local\Temp.arduinoIDE-unsaved2023611-17332-1axbd5w.itbwh\TestCommunication\TestCommunication.ino:3:34: note: suggested alternative: 'Serial'
HardwareSerial & serial_stream = Serial1;
^~~~~~~
Serial
exit status 1
Compilation error: 'Serial1' was not declared in this scope
Yes the Uno does not have a Serial1 port: Arduino Serial
On Uno, Nano, Mini, and Mega, pins 0 and 1 are used for communication with the computer. Connecting anything to these pins can interfere with that communication, including causing failed uploads to the board.
To use the Uno with this library, you must use SoftwareSerial. SoftwareSerial is more limited than HardwareSerial, but it allows you to set parameters on the TMC2209. SoftwareSerial cannot get information back from the TMC2209, only unidirectional communication is possible.
If you need bidirectional communication with the TMC2209, you should pick another Arduino board with an additional HardwareSerial interface.
Thank you for your reply
It's very detailed
I've got it moving in uart mode