When filing an issue, please provide any console output, a description of the issue, and sample code demonstrating the problem.
If you have any questions about Pymata Express or FirmataExpress, you may also use the issues links to do that as well.
Powering both Arduino connected devices (such as motors) and the Arduino micro-controller from your computer's USB connector may exceed the maximum current capabilities of the USB port. In those cases, use a separate power supply for the connected device.
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