Empty BtUart class
Constructor
Diagnose interface
AT ok command
Implement detectBaudrate
Extract a few wrapper methods
Change folder structure
AT Baud command
Add set_bt_baudrate method
Change detectBaudrate strategy
Use HardwareSerial*
Change project structure
Fix _ok
AT _name command without parsing feedback
Extract _isOk method for parsing return value
Extract _at method
Minor change
AT _pin command
Check return ok of _pin
Store baud rate in EEPROM