Final implementation

Technical

InterFREQUENCIES makes use of an ultra wide band (UWB) transceiver module mounted on a DWM1001 development board. The DWM1001‘s function as both anchor and tag. The DWM1001 anchor measures time of flight (TOF) of signals travelling between the anchor and the tags. The distance between the objects can be calculated by using the following formula:

Distance [m] = Speed of radio waves [m/s] x TOF [s]

The DWM1001 communicates with an ESP32 via a universal asynchronous receivertransmitter (UART), the ESP32, in its turn, uses a wireless network to transfer all the data to the laptop. A python program remaps the received data and directs this to a QLC+ controller that operates the light and sound installation as seen in figure 18.

For more detailed information about the python code, see Appendix 2.

Approach

In figure 19 you can see the impact of the height of the sensor on the artwork in relation to the height of the wearable. As the sensor is mounted on the ceiling the distance to the wearable increases almost parabolic when you approach the artwork. This enhances the effect of interaction with the artwork as it feels like a pulse rather than a gradually fading answer of the light and sound installation.