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cubeberg

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  1. Like
    cubeberg reacted to Fmilburn in RFID Booster Pack for CC3200   
    I put together a prototype Booster Pack that attaches to the CC3200 and has a RFID-RC522 card (sometimes called a MIFARE module), two buttons, and two LEDs.  The CC3200 is connected to the cloud using Temboo.  Currently it sends an email to me with information on the card used when accessed but it would be easy to modify to record time of access, card used, etc and put it into say a spreadsheet.  This was a one afternoon plus an evening project for both hardware and software using  Energia - very easy to do.  The cards have security holes but I am pretty sure they pose too high a technical challenge for my local hooligans.  I'm more afraid they might rip it apart and take my CC3200 than anything else.
     
    This is the Booster Pack, top view.

     
    Here it is attached to an upside down CC3200.

     
    In this photo it has been mounted in an enclosure and is reporting a successful read and transmission with the green LED.

     
    And if you are really interested, here is the schematic.

     
    I am using the RFID library located here.  And if you aren't familiar with Temboo, find it here.
  2. Like
    cubeberg reacted to greeeg in ledClock - dual colour led matrix   
    Yes, I have never tried to run mine that fast yet.
     
    I've done more work on the code. Not worrying about code size. ( It is around 7kb, basically maxing out the poor G2452. )

     
     
    And the forward voltage diode drop voltages for anyone interested.

  3. Like
    cubeberg reacted to Lgbeno in analog.io 2015 Hackaday Prize Update   
    So I didn't make it to the next round, but thanks to everyone here on 43oh for the awesome support and help along the way!
     
    I posted my update here with some thoughts: https://hackaday.io/project/4648-analogio-a-full-stack-iot-platform/log/26290-didnt-make-it-to-the-finals
     
    In some ways it is a relief but would have been really cool to go all of the way.  I'm currently seeing if any of the finalists want to collaborate and use analog.io as their cloud data service, we'll see what happens next!
     
    Also, in addition to the MSP430 Sensor node, I'm also finishing up an AVR based one.  Some people just really prefer Arduino and AVR, don't want to discriminate!
     
    -Luke
     
     
  4. Like
    cubeberg reacted to Fmilburn in Load Cell and INA125P Instrumentation Amplifier   
    Some time back I ordered an INA125P Instrumentation Amplifier in order to fool around with a cheap, broken "postal" scale that I had.  It arrived and I promptly put it away and forgot it about it.  So the other day I was digging through my junk box, saw the scale, and decided to tear it apart.  Since it is getting near Halloween, and I knew my grandchildren would be interested, I wrote a little sketch in Energia to estimate the amount of candy in a bowl.
     
    Here is a schematic of the circuit.  It "works" but given my skills it may not be best.

     
    This being a MSP430 project I hooked up the sleep pin on the INA125P.  I also made it where I could change out Rg, the gain controlling resistor, easily.  Once I had it working I made up a little BoosterPack that goes on the bottom of the LaunchPad. 

    The INA125P sits between the daughter board and the MSP430F5529 LaunchPad - you are looking down on the male pins in the photo above.  I hot glued a piece of cardboard on the bottom so as to reduce the chance of shorts and provide a reminder on how to connect it.  Below is a view from the bottom with it connected up to the LaunchPad and the scale.

    The sketch is here on github.  There is a little calibration routine it goes through when started up where it asks for the empty bowl and then a known quantity of candy to be placed into it.  After that, it displays on a SHARP96 BoosterPack.

    I thought about connecting it up to the IOT, but after due consideration decided I didn't want the neighborhood kids knowing how much candy I have left.
  5. Like
    cubeberg reacted to Lgbeno in My Latest IoT Fail   
    By the way, with everyone's help, the project is now number 22, thats exciting.
     
    With only 9 more skulls the project can jump 7 spots to number 15!
     
    Heres a fun pic from this weekend:
     

     
     
    Sent from my iPhone using Tapatalk
  6. Like
    cubeberg reacted to terjeio in What are you doing right now..?   
    Making my first PCB using KiCAD, switching over from ZenitPCB. Next I am going make a prototype board with a LQFP-64 (TM4C123), will push my homemade PCB "printer" to its limits (its inherent resolution is 1200dpi).
     

     
    PCB "printer" in action - a blu-ray laser (100mW), two steppers controlled by MSP430 and main rendering program written i C# for Windows.
     

     

     
    First PCB authored in KiCad - laminator is no good, and I am having some problems with dust. I am using Riston film - maybe better to use presensitized boards...
     
     
     
  7. Like
    cubeberg got a reaction from bluehash in Terminal Programs - survey   
    I've been very happy with Putty for the most part.  
  8. Like
    cubeberg reacted to Lgbeno in Geeky Tattoo   
    Cool Tattoo!
  9. Like
    cubeberg reacted to Lgbeno in New MSP430 Wireless Sensor Node   
    I've wanted to create a batteries included, very low cost wireless sensor kit for quite a long time now.  I've made some attempts in the past but up until this point they were either too expensive to produce and too limited in expandability.  I think that I've finally struck the balance that I'm going to be pleased with.
     

     
    The device is a little larger than a single AA battery, that is what it is powered off of.  It has an NCP1400 Boost converter to bump up the voltage to 3.3V.  The processor is MSP430G2553IRHB (32QFN) and it is attached to a HopeRF RF75 radio.  There are 15 GPIO available through a 0.1in female header that is sandwiched between the battery holder and the circuit board.  It plugs into a Launchpad for programming.  Footprints are available to solder on a Si7020 temp sensor, a 32kHz crystal and two LEDs.
     
    I have the pins_energia ready and now looking at what it takes to make the @@spirilis enrf24 library work with it.  I'll also create my own library with some analog.io tie ins as well as a special surprise.
     
    My goal is to sell these for $9.99 after I can get them debugged.  Would anyone be interested in one?
  10. Like
    cubeberg reacted to Fmilburn in DIY Rain Gauge   
    I made this sensor a while back as a prototype and put it outside earlier in the year and it still seems to be working OK.  It has been a dry spring and summer here in Seattle though and it really hasn't had much of a workout.  It was my first project with the MSP430G2.
     

     
    It is pretty simple.  The funnel catches rain from a known area where it falls into two "buckets" that tip back and forth.  Adjustment screws are used to calibrate the bucket volume.  A hall sensor detects each tip of known volume and sends a signal to the microcontroller which timestamps and stores/transmits the data.  Collected rain falls out the bottom through weep holes once it is measured.
     
    It was cheap to make, here is a bill of materials:
    Hall sensor - less than $2 Funnel: 1$ for three at the dollar store Magnets: I think I paid a couple of dollars for a tube of them Empty plastic nut container bottom of a coffee can to make the tip bucket mechanism Scrap wood Miscellaneous wire, nut, bolts, and nail I had around I stole shamelessly from this guy and he has a good write-up so I won't repeat that here:  http://www.instructables.com/id/Arduino-Weather-Station-Part3-Rain/
     
    These device have been around a long time.  When I was an undergraduate engineering student I worked one summer in a lab associated with the university where they needed to digitize rainfall data over a long period from several locales.  This was in the days of mainframes, well before PCs, microcontrollers, and spreadsheets.  The rainfall data was recorded on 24 hour charts that were attached to a clock driven drum and changed out daily.  Each time the bucket tipped on the rainfall gauge it would make a tick on the chart.  My job was to go through years of data (it had been stored on microfiche by the time it got to me), write it down and then later punch cards that were read into the mainframe.  This project was more fun, but I appreciated the money at the time
  11. Like
    cubeberg got a reaction from RobG in Geeky Tattoo   
    So I've been planning this for a while - but we were in Vegas this weekend and my wife encouraged me to finally go through with it  
     
    The design is actually based off of the footprint of an MSP430 QFN 16.  I had the tattoo artist do an initial sketch, but the final was actually designed in Eagle.  The symbol in the middle is the "Power" symbol you're probably familiar with - but was originally designed to indicate a "sleep mode" or "low power state" - a perfect reference for the MSP430 as well.  
     
    I'll have to post some updated pictures once it's healed - but here are a couple.
     

     
     

     
    So  - does anyone else have any electronics-related tattoos?
  12. Like
    cubeberg reacted to Remixed123 in Geeky Tattoo   
    Well done and congratulations, great to see other like minded people wanting a permanent expression of their passion for technology.
     
    Here is my PCB inspired tattoo, had this for a very long time now.
     

     
    Glenn.
  13. Like
    cubeberg got a reaction from RobG in Geeky Tattoo   
    So I've been planning this for a while - but we were in Vegas this weekend and my wife encouraged me to finally go through with it  
     
    The design is actually based off of the footprint of an MSP430 QFN 16.  I had the tattoo artist do an initial sketch, but the final was actually designed in Eagle.  The symbol in the middle is the "Power" symbol you're probably familiar with - but was originally designed to indicate a "sleep mode" or "low power state" - a perfect reference for the MSP430 as well.  
     
    I'll have to post some updated pictures once it's healed - but here are a couple.
     

     
     

     
    So  - does anyone else have any electronics-related tattoos?
  14. Like
    cubeberg reacted to bluehash in Geeky Tattoo   
    Like it! Does the blue go away or a part of the design? @@Fred might have an electronics based tatoo. Not sure.
  15. Like
    cubeberg reacted to cde in Geeky Tattoo   
    The blue smoke? R.I.P.
  16. Like
    cubeberg reacted to yyrkoon in Geeky Tattoo   
    That's what I call dedication
  17. Like
    cubeberg got a reaction from RobG in Geeky Tattoo   
    So I've been planning this for a while - but we were in Vegas this weekend and my wife encouraged me to finally go through with it  
     
    The design is actually based off of the footprint of an MSP430 QFN 16.  I had the tattoo artist do an initial sketch, but the final was actually designed in Eagle.  The symbol in the middle is the "Power" symbol you're probably familiar with - but was originally designed to indicate a "sleep mode" or "low power state" - a perfect reference for the MSP430 as well.  
     
    I'll have to post some updated pictures once it's healed - but here are a couple.
     

     
     

     
    So  - does anyone else have any electronics-related tattoos?
  18. Like
    cubeberg got a reaction from RobG in Geeky Tattoo   
    So I've been planning this for a while - but we were in Vegas this weekend and my wife encouraged me to finally go through with it  
     
    The design is actually based off of the footprint of an MSP430 QFN 16.  I had the tattoo artist do an initial sketch, but the final was actually designed in Eagle.  The symbol in the middle is the "Power" symbol you're probably familiar with - but was originally designed to indicate a "sleep mode" or "low power state" - a perfect reference for the MSP430 as well.  
     
    I'll have to post some updated pictures once it's healed - but here are a couple.
     

     
     

     
    So  - does anyone else have any electronics-related tattoos?
  19. Like
    cubeberg got a reaction from yyrkoon in Hackster.io - Microsoft Azure Challenge - $5k prize   
    As far as embedded operating systems - I'd say yes.  They actually have a very rich environment for systems to supported embedded hardware - especially with what they're adding in for IoT bus, Machine Learning, etc. - especially since they're embracing a lot of open software.  
  20. Like
    cubeberg got a reaction from Fmilburn in Interfacing CC3200 and MSP-430G2553 using UART   
    Energia pin maps are here - http://energia.nu/pin-maps/
    It depends on how you've got your setup, but here is how I'm using it:
     
    Program your MSP430 with a program that provides some sort of serial output
    Only the CC3200 is connected to your PC
    Connect GND and VCC between the two devices (this way, the power from the CC3200 board powers the MSP430 board)
    Pull all the jumpers on the MSP430 board (this prevents us from powering the debugger on the MSP430 and messing with the UART pins which are connected to a USB -> UART bridge)
    Connect the TX pin on the MSP430 to the RX(1) on the CC3200.  
    Make sure your MSP430 is transmitting at the same speed as the CC3200 Serial1 (I suggest 9600 unless you have a crystal soldered on the board).  Make sure Energia has serial set to the same speed as Serial on the CC3200 (115200 in the example I provided above)
     
    You should see the green LED flash a bit when data is being sent by the MSP430
  21. Like
    cubeberg reacted to roadrunner84 in UART communication - Can't type anything in PuTTY.   
    Please fill in your post.
     
    Putty displays ONLY that what comes back from the remote end, so if the remote and is not doing echo (printing back anything you type), you will not see it, but it is sent.
    In the configuration of your current session, under "Terminal" you can force Putty to do local echoing, which will show things you type. If both local echoing is on, and the remote end does echo, you'll see every character you type displayed double.
  22. Like
    cubeberg got a reaction from Remixed123 in Bluetooth SensorTag and Energia   
    From what I know - there is an issue with the license for the bluetooth stack currently used - it's not open source compatible.  They're working on solutions but that's the first roadblock.
  23. Like
    cubeberg reacted to bluehash in New Delfino F28377S Launchpad - $29.99   
    43oh Blog Announcement.
    F28377S Launchpad.
    F28377S Launchpad Userguide.
    TMS320f28377S Tool Page.
    Buy the Launchpad from the TI EStore.
    TI C2000 Launchpad Landing Page.
  24. Like
    cubeberg reacted to chicken in [MNP] Think of your Neighbors   
    Monday Night Project (MNP) is my attempt to have a regular rhythm to work on a project from start to finish. Each Monday night, between 8ish and 10ish I will work a bit on the project, and post a write-up about my progress to keep some public pressure up to actually follow through .

    On to my first MNP!
     
    Our local watering hole has a deck overlooking a pond and parts of the community. In winter people usually just go out for a quick smoke, but in summer its rather pleasant to stay out there and banter away, increasing in volume as the night wears on and alcohol gets into heads. Obviously there are complaints .

    One night, after a few beers too many, the idea came up of having an electronic minder, that shushes people when it gets too loud. As with every beer idea, you're surprised to find that there's actually already a product or two or three that one could buy. But where's the fun in that?

    So here we go: The "Think of your neighbors", or Toyn, as I like acronyms.

    A microphone picks up sound which is converted to a digital value by an ADC. Some magic determines what's acceptable, tolerable, or too loud. The magic device then drives a sign with RGB blinkenlights to indicate when it's time to tone it down.

    For A/D conversion and magic I will use a MSP430G2553 on a rev 1.5 LaunchPad. 6 analog outputs should be perfect to drive the LEDs. Programmed with Energia to keep things simple.

    For the microphone, I ordered a breakout board from SparkFun that also includes an amplifier. While I was at it, I also included 6 N-channel MOSFETs to drive the sign, which I expect to be constructed from 1 or 2 non-addressable RGB strips. The parts from SparkFun arrived today, as usual including a convenient red project box.

    I haven't ordered the LEDs yet (probably some cheap LED strips from eBay). For prototyping, a few random RGB LEDs from the chunk bin will do

  25. Like
    cubeberg got a reaction from bluehash in CC3200 Wi-Fi Sensor Tag coming soon.   
    TI has a reference design page for the BBB which uses a USB CC2531EMK.  http://www.ti.com/tool/CC2531EM-IOT-HOME-GATEWAY-RD#buy
    There is also a wiki pager on 6LoWPAN which references a USB CC2531EMK http://processors.wiki.ti.com/index.php/Contiki-6LOWPAN-BBB#CC2531EMK'
    Must be what they're referring to - assuming the technology is compatible with the new sensortag.
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