arduino nano appearing as usb 2.0 serial device

Following Plant and Turner ( 2009), we will use the terms accuracy and precision to denote two different concepts. In addition, our setup allows for the flexible integration of other sensors, and even actuators, to extend the cognitive science toolbox.īefore we discuss the quality of response time measurement, we need to define the terms for doing so. The Arduino performs as well as a serial response box, and better than a keyboard. Alternatively, emulation of a keyboard results in similarly precise measurement. Test measures confirmed that the error added to the measurement had an SD of less than 1 ms. We demonstrated the reliability, robustness, and precision of this communication in six studies. In our solution, an Arduino measures response latencies after being signaled the start of a trial, and communicates the latency and response back to the PC over a USB connection. These boards connect to standard experimental software using a USB connection and a virtual serial port, or by emulating a keyboard.

We propose using open-source Arduino microcontroller boards as an inexpensive and flexible alternative. Response boxes and data acquisition cards are precise, but expensive and inflexible, alternatives. Often keyboards are employed to collect buttonpresses, but their imprecision and variability decreases test power and increases the risk of false positives. Latencies of buttonpresses are a staple of cognitive science paradigms.

Arduino nano appearing as usb 2.0 serial device