When the Arduino transmits its sequence of values, the last number must equal the sum of all numbers before it. There is a rudimentary error checking method implemented. This is more than enough speed for talking to most sensor devices and may just even allow slow image transfer.Ģ.

It can now handle data rates upto 115200 baud. The ArduinoTalker Class is now suitably modified and works much better. This is relatively easy to implement….I was just too lazy to actually do it. Baud rate couldn’t be changed on the fly. No error checking method was implementedģ. Scroll below to the screen-shot to see what I mean.Ģ. This means that the incoming data needs to be rearranged into a proper “sentence” before it is parsed. This was happening because Qt’s readyread() signal is emitted at ANY time during the data reception process. Speed could not increase beyond 4200 baud with data integrity being lost. Also, that version had a lot of other problems:-ġ. While it worked OK for transferring data at slower data transfer rates, it couldn’t handle fast communications with the the Invensense MPU6050 IMU. In this earlier post, I had documented a Serial Communications Class for data transfer with an Arduino device in the Qt environment.

Qt serial port read example