Homemade Hardware

Homemade Hardware - Week 2: Programming Jig and Eagle Drawing

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Homemade Hardware - Week 1: Breadboard ATtiny85

 

TITLE: Programming Jig and Eagle Drawing

DATE: Feb 9, 2017

INSTRUCTORS: Andy Sigler

 

When I read classmates' blog posts, I suddenly realized I forgot to explain my idea about the first project last week.

I was deeply impressed by Andy's thesis project, I mean, though Andy made a joke said that it was an internet of useless things, I saw the future of connecting all the things around us together and building logic to make our lives easier. 

Well, let me explain it a little bit. We know there is some software, like Alfred(mac app), workflow(ios app), IFTTT(ios app), trying to improve the productivity by connecting services together and do the route workflow automatically. For instance, I like an image on Instagram, I can build a workflow [If I like it, save it to my google drive then send the link of my drive to my friend Utsav].  What I need to do is to like the image, and the app will do the rest of these workflows.

Imagine how it will work on hardware and physical things. [If I start my car engine, lock my apartment and turn off all the light], and I can customize the connection like [If I start my car engine, make a cup of coffee and run the blender], maybe no one will drink them up, but maybe it's a morning greeting to my loved one, who is still sleeping when I leave.

So in the first project case, my original idea is [If I turn on the light of the classroom, light up the Marquee letter]. I have no idea of how to build the entire system, but at least I know how to make a Marquee letter react to the room light, using photocell.

This week, I finished the programming jig, which is a brilliant idea. I have to show the "programming plug" I built at the first week...It's kind of like programming jig, but way more annoying when I use it to program. I always have the question, why people are so brilliant. I saw Dorothy improved the design of programming jig, now she could programming both ATtiny85 and ATmega328p through one jig, and it even had a LED to show it works!

Programming Jig

Programming Jig

Front View

Front View

Back view

Back view

It works!!!

It works!!!

I draw my schematic based the hand drawing last week. It went on well, except that the rename the net part was annoying.

The board drawing is not very difficult like I thought before, I started to doubt if I missed something...

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