For example, having the Arduino Integrated Development Environment (IDE) open may reserve the Arduino resource, resulting in Error 5003 when LabVIEW tries to access the COM port. Make sure that no other open programs are also attempting to communicate with the Arduino.Failure to specify the right settings may result in this error. Check to make sure you have the correct baud rate and COM port specified for your Arduino board in order to properly define the communication protocol.If you are using a laptop, make sure it is plugged in during the troubleshooting process. You may want to use those ports if you are on a desktop computer. The USB ports located on the back of a desktop computer generally have more stable power supply than the front panel's USB ports. Ensure that all cables are securely attached if using a wired connection or that you have adequate signal strength if using a wireless connection. A loss of connection can be caused by disconnecting the USB or serial cable while a VI is communicating with the Arduino, poor wireless signal strength when using a wireless connection such as Xbee or Bluetooth, or not downloading the LINX firmware on the Arduino when using the Diligent LINX.Įffectively, a timeout has occured when LabVIEW has not been able to read data back from the Arduino for a predefined amount of time (100 milliseconds per try for 10 retries by default).įollow these troubleshooting steps to fix the problem: Solution Error 5003 indicates that LabVIEW has lost its connection to the Arduino.
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