Blade Runner’s Voight-Kampff Test Gets Real

You’re in a desert, walking along in the sand when all of a sudden you look down and see a tortoise. It’s crawling toward you.

Any Sci-Fi fan knows this is a question from the iconic Voight-Kampff test, as made famous by the movie Blade Runner. Humans pass the test. Replicants fail and are “retired”. We may not have replicants just yet, but  [Tom Meehan] is building his own version of the Voight-Kampff machine. He’s entered it in the 2017 Hackaday Sci-Fi Contest.

The machine itself is an odd mix of 70’s and 80’s electronics with older technology. Three mini CRT displays, a sensor arm, and a bellows are some of the machine’s best-known features. [Tom] is starting with the sensor arm, an odd mix of belts and telescoping rods. He’s already got a manually operated prototype built. Add a motor, and one part of the machine is ready for action.

[Tom’s] version of the Voight-Kampff test isn’t going to be a just movie prop. He plans to add a sensor suite which will turn his machine something of a modern polygraph. A Non-contact Temperature sensor will measure blush response. Iris images will be captured by a Raspberry Pi NoIR camera. Pulse oxygen and galvanic skin response will also be captured by a separate hand module. All this data will be processed by a Raspberry Pi computer.

There’s quite a lot of work to be completed. Let’s hope for humanity’s sake that [Tom] gets it done before the contest deadline of March 6.

Sci-Fi Contest Roundup: The Voight-Kampff Machine


You’re watching a stage play – a banquet is in progress. The guests are enjoying an appetizer of raw oysters. The entrée consists of boiled dog stuffed with rice. The raw oysters are less acceptable to you than a dish of boiled dog.

The Voight-Kampff Machine, or VK, from Blade Runner is an extremely advanced form of lie detector that functions on blush response, pupil dilation, respiration, heart rate, and other physiological factors in response to emotionally charged questions to determine if the interrogation subject does or does not dream of electric sheep. It’s also an awesome prop, making it a great subject for our Sci-Fi contest.

You’ve got a little boy. He shows you his butterfly collection plus the killing jar. What do you do?

[Aven] is building a Voight-Kampff Machine built around a Raspberry Pi with a few small LCDs to display simulated vital signs. There will, of course, be a small webcam showing the subjects face or eye, and a few LEDs that will flash with the same pattern the original had.

You’re reading a magazine. You come across a full-page nude photo of a girl.

[Aven] still has a little bit of work to complete the VK, but there’s still a week and a half left in the contest. More than enough time for you to come up with your own Sci-Fi project and get your grubby mitts on some really awesome prizes.