fabricademy2017:students:cheung:week_4_-_e-textiles_wearables_i [Textile Academy]

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--- fabricademy2017:students:cheung:week_4_-_e-textiles_wearables_i [2017/11/03 00:45]
wei-ying.cheung [The assignment]
+++ fabricademy2017:students:cheung:week_4_-_e-textiles_wearables_i [2017/11/03 13:38]
wei-ying.cheung
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 ===== Initial experiments =====
-We started this week by **testing the resistance** of various conductive fabrics with **multimeters**. I made sure that the nodes of the multimeter were always 10 cm apart when testing different fabrics - in order to keep the conditions the same. This exercise showed that it is good to know how conductive different materials are so that you can choose the most suitable one, based on how much conductivity you need.
+We started this week by **testing the resistance**  of various conductive fabrics with **multimeters**. I made sure that the nodes of the multimeter were always 10 cm apart when testing different fabrics - in order to keep the conditions the same. This exercise showed that it is good to know how conductive different materials are so that you can choose the most suitable one, based on how much conductivity you need.
-We also experimented with using **pull up resistors** to regulate the voltage in simple circuits. We used Ohm's Law to calculate how much resistance we needed. I had a 3V battery and a 2.2V LED light, therefore needing to compensate 0.8V in my circuit (3V - 2.2V). I measured with the multimeter that the current was 0.02 amps. We then calculated using Ohm's Law that I needed 40 ohms to regulate the circuit and used a pull up resistor of 40 ohms in my circuit.
+We also experimented with using **pull up resistors**  to regulate the voltage in simple circuits. We used Ohm's Law to calculate how much resistance we needed. I had a 3V battery and a 2.2V LED light, therefore needing to compensate 0.8V in my circuit (3V - 2.2V). I measured with the multimeter that the current was 0.02 amps. We then calculated using Ohm's Law that I needed 40 ohms to regulate the circuit and used a pull up resistor of 40 ohms in my circuit.
-Additionally, we received an **introduction into arduino**. We used a **breadboard** to connect an LED and pull up resistor into an electrical circuit. The arduino had to be connected to the computer via a USB cable in order to receive power for the circuit.
+Additionally, we received an **introduction into arduino**. We used a **breadboard**  to connect an LED and pull up resistor into an electrical circuit. The arduino had to be connected to the computer via a USB cable in order to receive power for the circuit.
 {{:fabricademy2017:students:cheung:e_textiles:arduino_1.jpg?nolink&275x250|arduino_1.jpg}}
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 For this week, I chose to create an LED circuit incorporating a sensor. I integrated this into a choker necklace because I was keen to create a wearable artefact for this assignment. The choker used a parallel circuit with 4 LEDs, and the traces were created using conductive thread and the embroidery machine and sewing by hand. The sensor was a metal popper button which disrupted the circuit when the choker was unworn (and the button was left open), and which completed the circuit when the choker was worn around the neck (when the button was closed).
-PICTURE OF FINAL PRODUCT - FLAT, AND WORN
+{{:fabricademy2017:students:cheung:e_textiles:choker_final_-_off.jpg?nolink&1000x283|choker_final_-_off.jpg}}
+{{:fabricademy2017:students:cheung:e_textiles:choker_final_-_off_back.jpg?nolink&1000x270|choker_final_-_off_back.jpg}}
+{{:fabricademy2017:students:cheung:e_textiles:choker_final_-_on.jpg?nolink&500x430|choker_final_-_on.jpg}}
 I wanted to design a parallel circuit that would look nice on a choker. I had different ideas but found them difficult to put into a parallel circuit as it is important in a parallel circuit to keep the positive and negative wires separate. Finally, I came up with the design in the picture below (first image).
-I was keen to use the** embroidery machine **as it was new for me, I liked the finished result from example work, and it also saved a lot of time. To use the embroidery machine, I first drew the image I wanted to embroider in Illustrator. Then I imported the illustration into the **PE Design** program which is the designated program for the embroidery machine, and I took the following steps:
+I was keen to use the** embroidery machine **as it was new for me, I liked the finished result from example work, and it also saved a lot of time. To use the embroidery machine, I first drew the image I wanted to embroider in Illustrator. Then I imported the illustration into the **PE Design**  program which is the designated program for the embroidery machine, and I took the following steps:
-   * Changed the canvas size to 180mm by 130mm - because this would be the size of the hoop I would use.
+  * Changed the canvas size to 180mm by 130mm - because this would be the size of the hoop I would use.
   * Converted the image into stitches using the 'punch' function and chose zig zag stitches.
   * Saved the file in .pes format onto a USB stick.