Pee-ometer Project
The inspiration of this project was based on male toilet behaviour. The idea was to give men a little game while peeing in urinal. A sort of competition between themselves and the rest of the bar. It was based on my observation of pubs in england where I spent a few years.
How does it work?
- A pressure sensor measure the pressure of the water jet on its surface
- Values are collected in Arduino
- THe average of the 10 last value is caculated in the Arduino IDE. This is done to smooth value and to make the value more readable on the LCD screen
- The value is displayed on a LCD screen
- LED lights (red, orange, green) lights up according to the value recorder (like boking punch machine)
- The highest value is also recorded and displayed on the LCD screen
- THe highest value of all time gets recorded in the EEPROM memory (like a best scorer for pinball)
- The highest value gets retrieve from EEPROM and display for the next urinal visitor
- Link to the Arduino code
What was the final result
There were still some work on the EEPROM record and display of highest value for next urinal visitor. The rest of the electronics via Arduino was working. I was happy of the arduino sketch. However I was not happy with the design of the prototype (really ugly), and it was not completely watersplash proof system in June 2017. I gave it another try in September 2017, but again my building of a mock urinal that could be used for test (water retrieval) was not aesthetically pleasing.
Electronic Circuits
Arduino LCD and pressure sensor score from jc thuan on Vimeo.
"Real life" conditions testing
22nd May testing the Pee-ometer from jc thuan on Vimeo.
11th June
Using a 4 LCDs, I have 2 lines not showing up, and the hello world display arduino code not showing.
September
I revisted the project in september with a more visual installation with the theme water. I wanted to offer better water splash protection to my electronic equipement
- The result were not really satisfying from asthetics look & feel.
- The water splash protection was a success
- The water was circulating correctly on the structure and could be collected from the hole drilled in the support platform
- The water protection was so well done that the sensor was hadly receiveing valuable data (water pressure) :(
Bills of materials
- Arduino board (20 EUR)
- Strength sensor (8 EUR)- Buy here
- Strength sensor - Buy here
- LCD Screen 2 raws (from the lab) & 4 lines (10 EUR)
- Breadboard Jumper: 6 EUR
