iPhone controlled home speakers switch using the RaspberryPi and the CustardPi relay board

This is a project that I had in mind since we moved to the new house in the Houston Heights and we ended up with speakers throughout the house. Then I got a Sonos system for my birthday, which works great and can be easily controlled by iPhone or iPad o laptop. We got a standard push button speaker switch box but I thought it would be really cool to control the speakers via the iPhone since that is how I control the Sonos music.
The project started by using the server I have already setup on my RaspberryPi which can respond to php commands from inside or outside my network. Then I added a relay board CustardPi, wrote the php web service that controls the CustardPi, the Python scripts and the iPhone app that communicated with the web service and sues the commands. The relays then respond to the iPhone app and switch the speakers on and off.
Full description coming on my next post.

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iPhone home temperature logger

Our AC/Heating system is driving me nuts and I can’t get it calibrated in order to keep a balanced temperature around the house, kid’s rooms are boiling while bedroom and living room are freezing so I developed a prototype of an iPhone temperature logger using the http://www.weatherdirect.com/ system. The goal is to help me look at historical temperatures and then calibrate each room air flow to equalize as much as possible the temps. The system is comprised of:

- 4 thermometers
- base station
- Mysql database to hold the temperature and humidity data
- PHP service that retrieves the temperature from the Weather Direct site and stores it in the database at 5 minute intervals
- a PHP service that retrieves the name, temperatures, humidity and timestamp data for posting on the iPhone application
- iPhone app putting it all together

Next phase is automation of the air flow. Still thinking…

Here is a screenshot of the app.


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Raspberry Pi ready with a web server, ftp, VNC and GPIO web control

Finally after a week or so of messing around with the Raspberry Pi I have it all ready and working. I have installed Apache, PHP, FTP, VNC, MySQL. The web server is serving 3 sites, including a PHP service, and I can now support my own home temperature tracking system. Really cool and hosted by a computer uder $50.00.
In the next days I will be publishing articles explaining a bit how it was done.

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PhotoIdeas, a photo tagging app for the iPhone

Tag your photos, categorize them, set a location, search.

PhotoIdeas is an application that allows the user to take a picture of something of interest, tag it and catalog it for future reference or sharing via email.

For example, you are window shopping and saw a beautiful dress that would look great on your mom, you snap a pic, you choose Clothes and Mom, then enter’ red dress’ and then choose the location and save; now your picture has info associated with it and you can come back and find it quickly. You don’t have to browse through the 1000s of photos you might have in your camera roll.

 The application allows cataloguing using 3 different classification categories:

Category 1 – ‘What’

A fixed catalog of options describing things (What it is). New What categories can be added via the Settings screen.

  • Craft
  • Gift
  • Food
  • Groceries
  • Recipes
  • Foods
  • Activities
  • Books
  • Decorations
  • Stores
  • Restaurants
  • Clothes
  • Documents
  • Parking spaces
  • Important info
  • Coupons / advertisements
  • Events
  • Other


Category 2 – ‘Who’

A fixed catalog of options describing people (Who it is for). New Who categories can be added via the Settings screen.


  • Me
  • Mom
  • Dad
  • Grandma
  • Grandpa
  • Sister
  • Brother
  • Son
  • Daughter
  • Friend
  • Husband
  • Wife
  • Mother
  • Father
  • Aunt
  • Uncle
  • Teacher
  • Neighbor
  • Other


Category 3 – ‘User Defined’

A free form entry with user defined keywords, for example: chair, Pearl Jam, TV, painting, Sushi, http://www.cnn.com, etc.



Category 4 – ‘Location’

Location based Category. The location at the time of the PhotoIdea is created is stored and can be viewed later on.

The user then is able to search the database of PhotoIdeas by specifying a value for each of these Categories.  For example, the user can search for What=Clothes, Who= Mother and the application will return all PhotoIdeas that match the categories. Or the user could search for What=Clothes, Who= Mother and UserDefined=red, and the system will return all entries matching that criteria.


PhotoIdeas can be deleted, mailed or edited.


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Socialcam and Viddy

Good morning
I am an active videographer, mostly for family purposes, but active nevertheless. I have been searching for something like Instagram for video for a while and there was really nothing there that can come even close. We have been using YouTube to share our videos with friends and family and, yes it works, but its really not what I was looking for. I was looking for Instagram for video.
I just came across Socialcam and Viddy (sorry if I am a late adopter here) and I am really pumped up that one of them, or both of them, can really work for me. I will give both a try and see how they work. If anybody has any comments, please post them here. I’ll write an update later this week.

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Beautiful Boulder

Sunny, fresh air, not too cold. A step
closer to paradise.


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A penny for your thoughts: Why crowdfunding is taking off

September 2nd, 2010 by Ville Miettinen

Ever since our ancestors scratched each other’s hairy backs, humans have seen the benefit of lending a helping hand. With the rise of corporations, charities and stock exchanges, this assistance has become more complex, but in many respects it still relies on the same basic principles.

At Microtask we just closed a successful funding round, which got us thinking about how the methods of raising capital are changing.

For a startup like us, funding usually starts with the three Fs (family, friends and fools), before moving to angel investors, public funding, venture capitalists and finally, if things go well, a public listing on a stock exchange (although in the last decade, a trade sale to a larger company is a much more likely exit scenario). Today, startups – like almost anyone else looking for funding – can also turn to the crowd.

Friending for funding
Crowdsourced funding, or crowdfunding, at its most basic, involves raising funds through a network of people. Crowdfunding can help with everything from paying for a new heart to buying a real-life fantasy football team, investing in fashion to fulfilling a personal dream. What is new is not so much the underlying concepts – charities and cooperatives have been doing similar things for years – but how easy and effective it now is thanks to the internet, micropayment technology and social media.

But crowdfunding is not just about raising money. It is also an excellent way to publicize an idea and get feedback on it. If the crowd, in its collective wisdom, supports an idea, this in itself can be a very powerful marketing tool to attract other investors (and later consumers). It is not surprising then, that over the last few years a number of exciting companies have sprung up to facilitate crowdfunding for a wide range of causes.

At one end of the crowdfunding spectrum are companies like Crowdcube and Laraghfinance, which help businesses raise funds by offering the public real equity stakes (both have apparently overcome financial regulator issues). Perhaps because of a current lack of available venture capital, both of these companies are generating a lot of interest. Along with these companies, increasing numbers of businesses, such as Trampoline Systems, have also established their own systems to raise funding directly from the crowd.

Sounds like a great idea
The traditional music industry, struggling with declining record sales, has also turned to the crowd for help. Leading the charge is Sellaband, which helps bands reach out to individual investors to pay for recording costs. These investors then share in any profits from the album. Likewise, Artistshare has been helping artists fund albums since 2003, by offering investors extra material, published accreditation and even a chance to help with the creative process (in 2004 Maria Schneider won a Grammy with its help). AKA Music is doing similarly exciting things.

If you prefer the visual arts, CinemaShares offers the opportunity to buy a piece of a Hollywood blockbuster. It raises money for films by giving small investors the chance to buy individual shares. If you’re more of an art-house type, you can invest in indie films with Indiegogo. Vloggers can also access the crowd through sites like Have Money Will Vlog. Once again, some are going directly to the crowd, like the people behind the film The Cosmonaut, which takes small donations in exchange for accreditation as a producer (at last count the film had 2,242 credited producers).

Give a little bit
But probably the most visible benefactor of crowdfunding applications are charities. Who among us hasn’t been asked to donate to a charity in support of an old friend’s crazy endeavor? With companies like Just Giving and First Giving donating to such causes is almost annoyingly easy (now there are no excuses not to give). In a similar vein, Pledge Bank enables people to make pledges, and challenge others to do so as well. Others provide great opportunities for longer term giving, such as Give.fm which relies on clever use of micropayment technology.

Finally, of course, there are the more general crowdfunding providers, such as Kapipal, ChipIn, Fundable, Kick Starter and Rocket Hub. Each has successfully helped scores of people and organizations achieve their goals.

All these examples do not mean that crowdfunding is suitable for every situation or without its flaws. But what is clear is that a growing number of people and organizations are seeing the benefits of turning to the crowd for a helping hand.

In an era of belt tightening, crowdfunding may be exactly what innovators, charities, creative-types and the wider economy need. Not all such ventures will end happily, but by inviting public scrutiny as well as funding, failures will surely be in the minority.

As Abraham Lincoln (and later George W. Bush, sort of) said: “You can fool all the people some of the time, and some of the people all the time, but you cannot fool all the people all the time. ” With the wisdom of the crowd, individual investors – unlike former presidents – are much less likely to make fools of themselves.

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