iButton

I followed Suvi’s instructions on how to get iButton working on the UNO. The iButton had two wires, a white and a brown one. I connected the iButton on the breadboard. I connected the white wire to slot 7 on the UNO and to the 5v through a resistor. I connected the brown wire to […]

PING ultrasound sensor

Ping sensor is a lot easier to test than PIR, believe me. I swapped parts with my classmate Lauri from Tero’s class Lauri’s code below: if you get readings that it is hitting something closer than it should, make sure the sensor isn’t hitting something directly beneath it. I had to place the sensor on […]

Passive Infra-Red Sensor

I familiarized myself (and made a test) with a PIR motion sensor as a part of a course at Haaga-Helia held by Tero Karvinen: http://terokarvinen.com/2012/aikataulu-prototyypin-rakentaminen-bus4tn007-1 I found a site with instructions of how to use the motionsensor to blink a led http://www.instructables.com/id/Arduino-Basics-PIR-Sensor/ I got the PIR and a led hooked to my arduino following the […]