The Hairs of Your Head Are Numbered

Sensors for monitoring audience's pulse and GSR. Theatre performance.

doublelucky productions
Chris Kondek & Christiane Kühl
Berlin HAU2 Hebbel am Ufer, 2018


The human body is increasingly presented to us as a body of data. Movements, emotions and conditions are measured and quantified. While more and more people are into “life tracking”, “biohacking” and the chip under the skin, the body is becoming more and more like a foreign body. The complex technologies behind all that are reprogrammed here for the theatre.


To build wearable wristband pulse monitor for performers and audience members, which sends wirelessly data to server for visualisation.


I have built the pulse monitor based on optical pulse sensor and wifi mikrochip ESP8266. The optical sensor is placed on a finger. The light reflected will change based on the volume of blood inside the capillary blood vessels. Variation in light transmission and reflection can be obtained as a pulse from the ouptput of pulse sensor. The ESP sends sampled sensor value to server which calculates HR and visualise it.

Other works:

Motorized Microphone StandRemote controled platform for mic stand

True Light Model Box3D printed miniature light fixture.

Stranges & OthersMidi Interface for controlling Qlab. Immersive & participatory piece.

Shiver Me TimbersMultimedia Server for a stormy sea installation.

TrappedHead-torches controlled by lighting desk. Dance/theatre work.

TwelveRemotely controlled LED stripe in costumes. Contemporary dance performance.

SiegfiredController for special effect. Opera performance.

 © Grzegorz Zając