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Nest
07/16/2014 at 13:51 • 0 commentsWhile I was waiting on boards and parts I started assembling this. My answer to the Nest thermostat, ugly isn't it. Since I got an email yesterday that sparkfun is filling my order for sd card holders and I have 9 more boards to use up I am going to replace this with my "Power Monitor", a protoshield, and a serial lcd. While the thermostat itself is not smart I will send the data to the database, and make it so that the computer can make the "smart" temperature choices and control the thermostat. This is my second Nest rebuild, after first reading about their products before google bought them I built this...
The april board pulled power from the battery and was connected to the test button and the speaker. It would read the battery level (which this setup would drain in about a half an hour), could remotely test the unit through a web interface, and would provide feedback to my xively feed. The feedback was based on the number of pulses sent to the speaker and could report CO2, Fire, or Test. This would have only been practical if the smoke/co2 alarm was connected to house power, but to my wife's frustration I had fun going to work and hitting the test button. I had broken the link to xively one night playing around with the code and forgot about it the next day. When I was showing it off to a coworker I was disappointed that my feed was not updating, but when my phone rang it proved to be a closed loop system just the same.
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Software
07/15/2014 at 13:29 • 0 commentsIn the video I mentioned Xively and Emoncms, but I will also set up the new service from sparkfun and see how that works for me. I will host it my self, but I think that I will also push data to their service as well.
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v2
07/12/2014 at 14:32 • 0 commentsUploaded v2r2 to github with the copper pour. Sparkfun got new SD card holders in stock so I will redraw this board starting with the schematic and start over for r3.
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v1
07/07/2014 at 12:28 • 0 commentsUploaded v1r4 to github. This includes a schematic and a board with a copper pour. I also sent this to the board house.
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v2r0 and r1
06/15/2014 at 00:48 • 0 commentsIt should be noted that these boards are a fail because of noise on the analog pins (as it stands I am reading amperage in intervals of 0.07A, and the boards consistantly read 0.14A when there is no current present). I will tie the ground down better, but I am going to have to review sparkfun's tutorials and find out how they cover the board with copper for the gound.
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Electric Imp
06/15/2014 at 00:36 • 0 commentsCommitted Electric Imp code to github.
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Electric Imp
06/13/2014 at 16:51 • 0 commentsAs a side note, the electric imp can reload the program when there is a power cycle. This might be really fun to hook up to an fpga someday.
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Electric Imp
06/13/2014 at 15:35 • 0 commentsOk, I don't know if this problem is consistent with official pro mini's, but I have a couple that I will test. What I had to do to get these two tutorials working
https://learn.sparkfun.com/tutorials/arduino-wireless-communication-via-the-electric-imp/all
https://learn.sparkfun.com/tutorials/wireless-arduino-programming-with-electric-imp/all
was program my arduino uno with ArduinoISP and then flash the arduino pro mini as an arduino uno using the arduino uno as an ISP programmer.
Then remotely programming the arduino pro mini was successful w/o error.
I should have the electric imp code pushing data to xively this weekend and will post it on my github then.
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Sensors
06/13/2014 at 13:53 • 0 commentsI just ordered a rocket fuel level sensor
http://fuelminder.biz/OEM%20Rocket/oem_rocket.html
and will hopefully be able to tear down the recieving unit soon and add it to the stack up.
Also got my circuit breakers so I can work on voltage sensing.
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Docs
06/12/2014 at 12:18 • 0 commentsAdded some reference documentation to github. There is some Documentation for VSCP and MTConnect. I think that either one of these may be good to use, but I am not sure what yet.