I'm using the RS485 v2 Arduino shield and SoftwareSerial to interface with a sensor. It communicates fine at 38400 baud, but at 57600 there are a few CRC errors and at 115200 every message has CRC errors. The sensor has been tested with the hardware serial and it works at 115200 baud. The communications cable is 2 feet of shielded twisted pair. Are there any known issues with SoftwareSerial and/or the RS485 v2 shield at 115200 baud?
RS485 v2 baud rate
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