Sensor Polling via USB-RS485 Serial Interface stuck at 16ms, even though it should be faster
It's due to the 16ms latency timer of the FTDI driver, and the fact that my polling responses were not long enough to fill the 64-byte buffer to automatically trigger the buffer emptying. Read AN232B-04_DataLatencyFlow.pdf if you are interested, or simply go to your Device Manager, and change the settings in your USB-Serial-Port properties.