GYROSCOPE Gyro L3G4200D detects or measure rotation on 3 axis: x, y and z. It has three selectable scales: 250 , 500 or 2000 deg/sec. Gyros are not affected by gravity (like accelerometers) and can give you exact information how object is orientated. Gyros and accelerometers are often used together because of great complement to […]
As it turned out re – exchanging those buttons for PIRs was a lot more complicated then expexted. When I simply plugged in the sensors, they didn’t work properly. After a lot of testing I figured, that at least two of the eLab’s three PIRs appeared to be broken. I ordered new ones from Tinkersoup, […]
To recreate a sensor using textiles, I recreated a knit pressure sensor. I knitted a little rectangle, connected it with crocodile clips to the breadboard and using Arduino and an LED created a presure sensor. knit pressuresensor from Jessica Snidersich on Vimeo. You can find out more information from How To Get What You Want.
In week 4 of the course we had a look at textile sensors. For challenge 3, to develop your own prototype for a sensor - I recreated a zipper switch sensor using fabric, a zipper, 4 LEDs and conductive thread. The first thing I did was decide where the 4 circuits would be on the zipper. I […]
For our very first project, we hacked bike lights! I wanted to create a 3d paper pyramid that was controlled by a paper switch on the bottom side of the base. Then I added the paper pyramid + the switch!
The Code is working, I am now exchanging my buttons for PIR Motion Sensors again. Here’s what my setup looks like before and after. With buttons: With PIR Motion Sensors: *The big red thing is the MP3Player Shield, that sits on top of the Arduino Uno.
Just a quick update: I managed to implement the millis() function correctly into my code. Before the sound was only triggered, when both pedestrian and cyclist are detected simultaniously. Now it also triggers, when a bike is detected and a pedestrian has been detected recently (within the last four seconds). So I’ve got the main […]
These are notes I took for myself, that helped me understand and remember how to implement Serial communication in my code. Serial communication can be very important for troubleshooting, to see what bits of the code are working properly and which aren’t. It can also necessary for extra functions like for example communication data to […]
Better late than never: These are notes I took for myself, that helped me understand how a voltage devider works. I think it’s quite an important thing to know, because components like potis are based on it and a lot of other components need to be combined with a second resistor to work as a […]
To control the servomotor we need the PWM pins from the Arduino. The initial idea was to have 9 pairs of lightbulbs. Given the amount of pins available on the Arduino (only 6 PWM pins) I decided to have 6 times three lightbulbs. Which by the way would be 6 – 6 – 6 lightbulbs. This […]