HX711 ADC Node or Arduino Serial In Help

Update: I'm trying a new approach. I've been able to connect an arduino to the sensor and get realtime data output over the serial connection.

The data is visible in the Arduino IDE through the serial monitor. I'd like to feed this data into node-red but get the below error when trying to use the serial in node.

"serial port /dev/ttyACM0 error: Error: Error Resource temporarily unavailable Cannot lock port"

See attached screenshot for additional setup details.