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Ross Satchell
Works at Studying full time & developing electronic control systems for espresso
Attends UNE, USQ
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Mohiomap Turns Evernote, Google Drive, And Dropbox Accounts Into Mind Maps http://feedproxy.google.com/~r/Techcrunch/~3/36Wj0rTqiXk/
Like many other people, I use Evernote as an information dump. Despite my best efforts to keep things organized with multiple notebooks and tags, my account..
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Ross Satchell

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I need advice.
I am working on a Keypad Alarm project for my 10yo nieces for their rooms and am unsure what sensor to use for tripping the alarm.
Ideally I would like the device to be battery powered.

Suggestions are most welcome.
Currently I am weighing between a Reed Switch, PIR and Ultrasonic Distance sensor.
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If you want to prevent people to get inside their room through the door. Simple switch at the door or a magnetic switch if you want to get fancy. This if for tripping the alarm by opening a closed door. If the door will remain open a led / laser and a photo transistor will create a tripwire like sensor. Also pressure mats are nice. PIR also works but if the alarm is on while they are inside their room it may trigger by mistake when they move, hence the convenience of the perimeter sensors. Determine first what you want to prevent or monitor as alarm conditions. 
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this pretty much sums up the new software at we got at work 
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LOL!!!!!
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Game changer for ultra low power IoT
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There's a new low cost PCB company in town!
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Not yet, considering placing an order soon.
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For any developer out there, this really is a must watch. http://vimeo.com/71278954

Taken from the perspective of a forward-thinking programmer in the 70's, you'll be amazed at what they were doing in the 60's. I, for one, want the new version of GRAIL.
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Take my money!
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Simple I2C protocol for advanced communication between Arduinos http://feedly.com/e/w8_EjSjR
  by berryjam.eu: Main task – advanced communication between multiple Arduinos using I2C bus. Main problem – most online tutorials covers just one blinking LED with almost no practical use. Sl...
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Ha!
 
What programming (especially Javascript programming) is, in one simple and very accurate flow chart.
I've probably drawn this picture 100 times. In meetings or on the bus, while trying to get started on human or technical problem I don't understand, at times when I'M STUCK. I was cleaning up today, and took a photo of one copy of it, before I threw it out. I put it on instagram, so I could feel ...
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Guide to root Nexus 5 on Android 4.4.4 KTU84P and install CWM recovery.
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People
In his circles
241 people
Have him in circles
130 people
Mehran Akhzari's profile photo
Vijay Chauhan's profile photo
Mai Le's profile photo
Randolph Garrison's profile photo
Neeraj khatak's profile photo
Richard Sewell's profile photo
Florence Chen's profile photo
Jaidyn Edwards's profile photo
DreamSourceLab's profile photo
Education
  • UNE, USQ
    Engineering, present
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  • Studying full time & developing electronic control systems for espresso
    Bloke, present
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