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Lgbeno

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  1. Like
    Lgbeno got a reaction from jelledebock in Pololu led strip for MSP430   
    By the way around Halloween time I saw on Twitter that someone did this with a pumpkin:
     
    http://www.paulschow.com/2014/10/rgb-internet-pumpkin.html?m=1
  2. Like
    Lgbeno got a reaction from jelledebock in Pololu led strip for MSP430   
    That's a field of study which will reward you well throughout your career! I would say with determination, you will get it up and running with any approach. You'll find that part selection is pretty critical to success.
     
    I'm an EE with about 7 years experience and became a hobbyist about 4yrs ago . I still remember my first hobbyist project. I thought that I could build my own quad copter from scratch. From the BLDC drives to the wireless controller. I got done with my first hardware design and then hit the wall from a programming perspective. It was just too complex for a first project. Like 100x too complex... Yours isn't that complex but still with the components that you are thinking, it will be a healthy challenge.
     
    For those just getting into the hobby, I try to help identify a clear and easy path to complete the project because that's what really gets you hooked on it long term. Starting with a platform that makes a project a 1 month job instead of a 6 month job is a big deal IMO. I'm still mastering this myself but it allows you to complete more projects with less time.
     
    As I see it you have
    1) Get rgb led strip talking to uC
    2) Get wifi up and running
    3) Define wifi protocol to interface to code in step 1
    4) Write web interface to talk to code in step 3
    5) Improve system reliability, wifi robustness at all steps
    6) maybe setup some mini-server to host the web app
     
    With the Lauchpad + esp8266 you will definitely feel each one of these steps, steps 2 and 3 will likely be the most difficult.
     
    With cc3200 steps 2 and 3 become easier with Energia and the pre written libraries.
     
    With Electric Imp steps 2-6 are practically done for you and integrated into a single environment. Step 1 is straight forward too with the example code.
     
    In any case 43oh is a great community with really smart people who always help out. It's also the most project oriented community forum I know as well.
  3. Like
    Lgbeno got a reaction from FeelGood in [Energia Library] EtherEncLib for ENC28J60   
    Yes even if you had PHP it would not allow dynamic updates. Like other have said you can write some JavaScript to poll the temp and humidity status via http.
     
    Another way to address this would be to push data to a service like data.sparkfun.com and use a site like imp.guru to render the web page.
     
    At the moment there is a bug for live updates on those sites but it is being resolved. Here MQTT is used.
  4. Like
    Lgbeno got a reaction from chicken in [POTM] dAISy - A Simple AIS Receiver   
    The filter before or after is unfortunately a catch 22. You are building up a cascades noise figure for your receiver. As a general rule of thumb the first element will contribute the most to you noise figure so in this case with the Bp having 5 dB of insertion loss, your noise figure cannot be better than 5 dB. With amplifier before band pass, the amp noise figure will really dominate.
     
    The problem as you mentioned is linearity of the amplifier. If there is a strong signal exceeding its 1 dB compression point. It will start to distort the signal. This can mostly be rejected by the band pass except for the 3rd order inter modulation components which will be in band.
     
    In any case, I think that in most cases, you will see better performance with amplifier first
  5. Like
    Lgbeno got a reaction from roadrunner84 in imp.guru Droplet and 915MHz Long Range Radio to WiFi   
    Very good points. So is it coding that gives LoRa it's longer range, DSSS or both.
     
    The environment that I'm working in is that the transmitters and embedded in the middle of a bee hive surrounded by wax, bees and wood, then the signal goes through the woods and then there is my receiver. Thinking about it, multi path may be a big part of my losses. I'm at 915mhz currently.
  6. Like
    Lgbeno got a reaction from tripwire in TI now will require .EDU or corporate Email addresses for samples.   
    Yeah I think that I just means that they particularly filter known providers of free email accounts. You can register a domain and point it to zoho mail for free then you are golden. My domain uses the .guru TLD and TI doesn't recognize it as a valid URL, best to stick with .com or the like
  7. Like
    Lgbeno got a reaction from chicken in [POTM] dAISy - A Simple AIS Receiver   
    I agree, I think that a LNA MMIC could make a big difference in range. Avago also has some good options. Mini circuits is cool though because you can get connecterized modules and plug them right in for testing.
  8. Like
    Lgbeno got a reaction from bluehash in Measuring Apple Cider Fermentation   
    Just a fun side project, I recently pressed some apples into cider and now I'm fermenting it into hard cider. In the process I added a magnet and Hall effect sensor to the airlock to track the CO2 output of the fermentation process.
     
    I was surprised with the results so far.
     
    Here's a bad picture:
     

     
    And the data: http://imp.guru/f2c
  9. Like
    Lgbeno got a reaction from zeke in Measuring Apple Cider Fermentation   
    @@zeke I think that there is a market for it.
     
    I'm somewhat atypical in that I'm a nerd and home brew very infrequently so my opinion isn't the greatest. I did this more out of curiosity than to actually control some aspect of the brewing process. For me personally temperature would be the same category, I would definitely do it though!
     
    There was a kickstarter called the "beer bug," they raised $59k selling a ~$150 solution (but it monitors more than temp) that tells me there is some genuine interest.
     
    I think that it really comes down to simplifying the hardware & software so even non-tech savy people use it. I don't even thing that the beer bug is there yet on ease of use.
  10. Like
    Lgbeno got a reaction from Automate in Measuring Apple Cider Fermentation   
    Just a fun side project, I recently pressed some apples into cider and now I'm fermenting it into hard cider. In the process I added a magnet and Hall effect sensor to the airlock to track the CO2 output of the fermentation process.
     
    I was surprised with the results so far.
     
    Here's a bad picture:
     

     
    And the data: http://imp.guru/f2c
  11. Like
    Lgbeno got a reaction from tripwire in Measuring Apple Cider Fermentation   
    Just a fun side project, I recently pressed some apples into cider and now I'm fermenting it into hard cider. In the process I added a magnet and Hall effect sensor to the airlock to track the CO2 output of the fermentation process.
     
    I was surprised with the results so far.
     
    Here's a bad picture:
     

     
    And the data: http://imp.guru/f2c
  12. Like
    Lgbeno got a reaction from roadrunner84 in Measuring Apple Cider Fermentation   
    Just a fun side project, I recently pressed some apples into cider and now I'm fermenting it into hard cider. In the process I added a magnet and Hall effect sensor to the airlock to track the CO2 output of the fermentation process.
     
    I was surprised with the results so far.
     
    Here's a bad picture:
     

     
    And the data: http://imp.guru/f2c
  13. Like
    Lgbeno got a reaction from spirilis in imp.guru Droplet and 915MHz Long Range Radio to WiFi   
    @@jpnorair Thanks!  In this case I did want to prioritize form factor over antenna performance however to your comments, I definitely do want to optimize where possible within this constraint, 12 dB is a big improvement.  In general, one thing that I don't understand is why loop antennas are not more published for these devices, it seems like they have a lot of advantages.  In some cases I've seen PCB loops that do not require any additional components:
     
    http://www.emmicroelectronic.com/sites/default/files/public/products/datasheets/em9301_ds.pdf   see page 27...
     
    In any case I look forward to your pictures, I'm sure that it will be very helpful.
     
    As another update, with the help of @spirillis http://forum.43oh.com/topic/6019-pin-map-for-msp430g2553-rhb-package/ I did get my hub up and running so that is very exciting, looking forward to doing some range testing with it!  I also  received my solder stencils and reflowed 7 more droplets.  I think that I will be using this workflow more because the build went pretty well and I know that I can get more efficiently out of it if I take the time to have all of the materials staged and my workspace is more orderly!
  14. Like
    Lgbeno got a reaction from spirilis in Pin Map for MSP430G2553 RHB package   
    Well that explains it, now I know that I'll need to do some rework
  15. Like
    Lgbeno got a reaction from eck in imp.guru Droplet and 915MHz Long Range Radio to WiFi   
    Sorry for the mega post but as you may have already noticed, lately I










  16. Like
    Lgbeno got a reaction from PTB in imp.guru Droplet and 915MHz Long Range Radio to WiFi   
    Sorry for the mega post but as you may have already noticed, lately I










  17. Like
    Lgbeno got a reaction from dubnet in imp.guru Droplet and 915MHz Long Range Radio to WiFi   
    Sorry for the mega post but as you may have already noticed, lately I










  18. Like
    Lgbeno got a reaction from pine in imp.guru Droplet and 915MHz Long Range Radio to WiFi   
    Sorry for the mega post but as you may have already noticed, lately I










  19. Like
    Lgbeno got a reaction from chicken in imp.guru Droplet and 915MHz Long Range Radio to WiFi   
    Sorry for the mega post but as you may have already noticed, lately I










  20. Like
    Lgbeno got a reaction from bluehash in imp.guru Droplet and 915MHz Long Range Radio to WiFi   
    Sorry for the mega post but as you may have already noticed, lately I










  21. Like
    Lgbeno got a reaction from CorB in imp.guru Droplet and 915MHz Long Range Radio to WiFi   
    Sorry for the mega post but as you may have already noticed, lately I










  22. Like
    Lgbeno got a reaction from Automate in imp.guru Droplet and 915MHz Long Range Radio to WiFi   
    Sorry for the mega post but as you may have already noticed, lately I










  23. Like
    Lgbeno got a reaction from abecedarian in imp.guru Droplet and 915MHz Long Range Radio to WiFi   
    Sorry for the mega post but as you may have already noticed, lately I










  24. Like
    Lgbeno got a reaction from spirilis in imp.guru Droplet and 915MHz Long Range Radio to WiFi   
    Sorry for the mega post but as you may have already noticed, lately I










  25. Like
    Lgbeno got a reaction from bluehash in ESI Project: Water Usage Monitoring   
    Interesting project, I'm actually doing something similar with cc110l and msp430G2553. I call it "droplet". It runs off of a cr2450 battery, sleeps most of the time then wakes up sends measurements to a Hub that is wall powered and the hub ships the data to data.sparkfun.com. Here's the droplet:
     

     
    And here is a hub prototype (just ordered a real pcb for it)
     

     
    You can see the electric imp that receives data via uart the pushes it to sparkfun.
     
    My web app project imp.guru fetches the data from sparkfun to view, here's the data imp.guru/f1
     
     
    I'm willing to share any/all of this work for your project if interested. My recommendation would be to skip the whole energy harvesting thing and use batteries. With the right design you should last years on a pair of AA's.
     
    I've seen projects on hack a day where people use Hall effect sensors to pick up the spinning magnet in their utility water meter. I think this is it:
     
    http://hackaday.io/project/1460-Remote-Water-Consumption-Display
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