week 12

figure 12.2: the circuit is applied to the pcb board.

figure 12.1: the sensor attach to the bent ruler

When the sensor was attached to the bent ruler and connected to the circuit of pcd board,this project are not working. May be the connection in the pcb board.

week 11

figure 11.3: flexi sensor when bent

figure 11.1: this is circuit that I was set up.Flexi sensor with arduino and LCD

figure 11.2: the flexi sensor without bent

week 10

figure 10.2: circuit flex sensor with arduino

figure 10.1; this is basic flex sensor














more information:
http://garagelab.com/profiles/blogs/tutorial-flex-sensor-with-arduino
http://devices.sapp.org/component/flex/

week 9

Activity: Create mechanism of mouth assessment!

Fisrt : Find material like iron such as ruler.
Then, make two hole like this picture(Figure 1and Figure 2).

Figure 1

Figure 2

Then,bent at the end of both side of ruler.(Figure 3)

Figure 3

The purpose of that hole is to put a screw.

Figure 4

Figure 5

But, I need more length than on these pictures.Maximum 3 inch.So, I must find it in wherever hardware shop.

One more things,I need a few spring anymore.Now I just have two spring.It is not enough for the lenght of my screw.

Figure 6: springs.

week 8

Final sensor!!!
Flexi sensor...

Figure 1 : This is flexi force.

What is flexi force??
 unique component that changes resistance when bent.

Figure 2: Flexi force can be bent.

 An un-flexed sensor has a nominal resistance of 10,000 ohms (10 K). As the flex sensor is bent in either direction the resistance gradually decreases. They convert the change in bend to electrical resistance - the more the bend, the more the resistance value.

 On MyDuino,have 2 length,those are "4.5" and "2.2" with different prices.

Figure 3: Flexi force "4.5" in length with RM65.00

Figure 4: Flexi force in length "2.2" with RM45.00

Application :
 gaming gloves, auto controls, fitness products, measuring devices, assistive technology, musical instruments, joysticks, and more.


 More information,visit this website: 
http://www.imagesco.com/sensors/flex-sensor.html 
https://www.sparkfun.com/products/8606? 
http://itp.nyu.edu/physcomp/sensors/Reports/Flex 
http://www.myduino.com/index.php?route=product/product&path=39&product_id=211 
http://www.myduino.com/index.php?route=product/product&path=39&product_id=180 

week 7

This week I buy flexiforce sensor at cytron.The famous buy online.

Figure 1: Post letter arrived

Figure 2: The flexiforce sensor is inside the box.

week 6

Due to the load cell sensor cannot use anymore,I change my sensor.The suitable sensor is Flexiforce sensor.

What is Flexiforce sensor?

Figure 1: Flexiforce sensor.

figure 2: structure of flexiforce sensor

Figure 3: small size of flexiforce

Figure 4: another size of flexiforce

References
 http://www.prweb.com/releases/zif-compatible/flexiforce/prweb4192224.htm

http://www.c-stamp.com/CS497000.htm