Exceptions
When pymata-express detects an error, it raises a RuntimeError exception. The table below shows the exception report string that is displayed on the console when an exception is raised. A probable cause and troubleshooting tip is also provided.
Exception Report | Probable Cause | Troubleshooting |
---|---|---|
ERROR: Python 3.7 or greater is required for use of this program. |
Unsupported version of python detected |
Make sure that you are using Python 3.7 or greater. |
No Arduino Found or User Aborted Program. |
Com Port not found. | Make sure that you have the Arduino plugged in. |
Firmata Sketch Firmware Version Not Found. | Valid firmware version not returned. | Make sure that you have a Firmata sketch installed on the Arduino. |
Analog map retrieval timed out. Do you have Arduino connectivity and do you have the correct Firmata sketch uploaded to the board? |
Analog report request timed out | Self explanatory. |
User Hit Control-C. | User aborted the application. | Not Applicable. |
Retrieving ID From Arduino Failed. | FirmataExpress handshake not returned. | Make sure that FirmataExpress was uploaded to the Arduino |
Invalid Arduino identifier retrieved | FirmataExpress and pymata-express Arduino IDs do not match. | Verify the Arduino IDs |
write fail in _send_command | Serial write failed. | Check the serial cable. |
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