Our first AVR studio program in assembly language

RS232 protocol

The RS232 protocol has been around for many years now. There are various versions and we have to be aware that non-standard applications are used often. The main aspects are the sockets and plugs and the packet sending rules.

Think about your wearable project

The next project is about using an embedded system very close to a person. It could be on clothes, shoes or on something you carry or on an accessory like a coat, hat or belt. Some ideas below are given in links.

Links
http://atmelcorporation.wordpress.com/2014/01/23/wearables-to-create-personal-data-streams/?utm_campaign=January_2014_Newsletter.html&utm_medium=email&utm_source=Eloqua

http://www.instructables.com/id/Despicable-Me-Minion-Costume-1/

http://learn.adafruit.com/light-activated-pixel-heart

http://www.nst.com.my/life-times/tech/top-picks-ground-breaking-wearable-gadgets-1.528292

http://realbusiness.co.uk/article/26128-7-of-the-best-tech-gadgets-from-londons-wearable-technology-show

http://www.pcadvisor.co.uk/news/google-android/3507296/android-wear-release-date-smartwatches/?cmpid=HTML-DN190314&olo=daily%20news

http://sensoree.com/

First sensor: the LDR

Some good code and information here.
Light dependent resistor circuit. See http://www.ladyada.net/learn/sensors/cds.html

Some voltage divider images

We often want a sensor to send its signal using a changing voltage. For instance when the temperature is high we get a big voltage, and when the temperature is low we get a low voltage. Note that normally the input to an Arduino analog pin has to be between 0 and 5 volts.

Can you identify parts of the RedBoard Arduino Uno?

Arduino and Meg328 Pinout