**PLACE** : Onl'Fait, Geneva\\ **DATE**: 28/10\\ **PEOPLE**: Cristina, Giorgia, Luisa

STEP 1

**PROCESS & MATERIAL: **based on the scheme provided by Wemake Milano, we fabricated a piezoresistive analog sensor. The pressure sensor was built with **neoprene**, **Velostat**, **conductive threads** and **copper conductive fabric**. **ISSUES: **I sewed a small piece of conductive fabric to the conductive thread to enlarge the surface where to attach the other components. However I could have simply covered the surface with several stitches to obtain a neater result. **NOTES**: only Neoprene without PVC can be laser cut. As I was not sure about the composition of the neoprene I used, I cut it with scissors and the shape was not extremely precise. {{ :fabricademy2017:students:cristina.olivotto:textile-sensor-tut_2_.jpg?nolink&600x424 |textile-sensor-tut_2_.jpg}} {{ :fabricademy2017:students:cristina.olivotto:dsc_1533.jpg?nolink&700x241 |dsc_1533.jpg}}

STEP 2

**PROCESS: **based on the scheme provided by Wemake Milano, I attached the pressure sensor to a LED and a Lilypad. I added a pull-up resistor because the Lilypad analog pins are reading the voltage that comes in, not the resistance over the two points. For a detailed explanation of voltage divider, please refer to the website [[http://www.kobakant.at/DIY/?p=6102|How to get what you want]]. I first tested the circuit with a multimeter and crocodile clips before sewing all the components with conductive thread. **MATERIAL & TOOLS: **Lilypad, FDTI, USB cable, crocodile clips, 10 KOhm resistor **ISSUES: **I didn't add a second resistor to the circuit and that might result in a shorter life of the LED. {{ :fabricademy2017:students:cristina.olivotto:dsc_1534.jpg?nolink&700x433 |dsc_1534.jpg}}

STEP 3

**PROCESS: **I programmed the Lilypad to make an **emotional heart**. The LED has an average "heart rate" of 60 beats a minute but if you touch the heart, it becomes emotional and the LED heart rate increases to 180 beats a minute. **SOFTWARE: **Arduino IDE **NOTES**: I would have loved to experiment with ATtiny but as it was not delivered on time, I used a Lilypad. **CODE**: {{ :fabricademy2017:students:cristina.olivotto:screen_shot_2017-10-30_at_16.53.26.png?nolink&650x668 }}{{ :fabricademy2017:students:cristina.olivotto:dsc_1537.jpg?nolink&700x448 |dsc_1537.jpg}} {{ youtube>XbkEanHG04U?medium }}