The Raspberry Pi has IO pins left over after attaching it to the OpenSprinkler Pi and I am still waiting for my Pinoccio‘s to instrument my environment so I added a first yard sensor to the pi. It’s a DHT11 temperature and humidity sensor. Fortunately, pretty much all the work to get this connected to the Raspberry Pi has already been done. Consulting the pinout and using Adafruit’s interface program, I got my first data in minutes of work :-) Continue reading Garden Automation Part 2
Because I always want to automate everything, and I am not that good at gardening yet, I am working on adding smarts to our garden. To start with, the watering system.
I bought an OpenSprinkler PI from Ray’s Hobby and a Raspberry Pi model A (the one with less RAM and since I knew I was going to want to operate it on wifi and wasn’t going to be asking too much of it. I figured I ought to get some hands on experience with the Raspi since everyone is talking about it and it’s convenient not to have to start from scratch for sprinkler automation. Continue reading Garden Automation Part 1
Sustainability is the most important technological problem we face today and for the foreseeable future. We need to use resources more intelligently and to be successful, our technology needs to become intelligent itself. Robotics is the study of giving the ability to sense the environment, make intelligent decisions and take action to machines and; a large part of green technology and robotics are the same technology. Continue reading Why green tech investors should care about robotics
I just got some Sugru and it’s been great for fixing and hacking a few things up. For those not familiar with it, Sugru comes in little packets and starts out the consistency of silly putty and sets into something like silicone rubber with the additional advantage of adhering strongly to any surface it’s put on.
I have had an NFC capable phone for a year now and just decided to start playing with the technology. My first simple hack is NFC tagging my notebook.
Continue reading NFC notebook
My ebike computer project was selected as a presentation for the “DIY Geek” series of lightning talks at the ARM Tech Conference this year. They were looking for people who had gotten their hands dirty using ARM Microcontrollers to give walk throughs on approaches and with a cortex M3 mbed at its heart and 2+ ARM processors on the android phone side, this project fit the bill. You can download a PDF of my presentation.
I finally got around to setting up the plumbing to save all the motion activated snapshots from my security camera to my server and once a day encode the individual JPGs in to a Theora video.