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bluehash

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  1. Like
    bluehash reacted to rads in Energia - TivaC - Kenetc Display (SPI)   
    Solved. I have included all the libraries. The problem was in calling the getTouch function. I declared x,y,z as variables of type unsigned short and called the getTouch with x,y,z as parameters. The compilation was successful and the getTouch returns true on touching the screen and fills in the x,y,z values.
  2. Like
    bluehash got a reaction from yyrkoon in BeagleBone Blue robotics controller board   
    There is a new BeagleBone out in the field. This one is the "Blue", following the "Black" and "Green" ones.
    Expected retail price is $80. 
    Feature list:
    Processor: Octavo Systems OSD3358 1GHz ARM® Cortex-A8
    • 512MB DDR3 RAM
    • 4GB 8-bit on-board flash storage
    • 2×32-bit 200-MHz programmable real-time units (PRUs)
    • On-board flash programmed with Linux distribution
    Connectivity and sensors
    • Battery: 2-cell LiPo support with balancing, 6-16V charger input
    • Wireless: 802.11bgn, Bluetooth 4.1 and BLE
    • Motor control: 8 6V servo out, 4 DC motor out, 4 quad enc in
    • Sensors: 9 axis IMU, barometer
    • Connectivity: HighSpeed USB 2.0 client and host
    • Other easy connect interfaces: GPS, DSM2 radio, UARTs, SPI, I2C, analog, buttons, LEDs
    Software Compatibility
    • Debian, ROS, Ardupilot,
    • Graphical programming, Cloud9 IDE on Node.js


     
     
  3. Like
    bluehash got a reaction from LiviuM in BeagleBone Blue robotics controller board   
    There is a new BeagleBone out in the field. This one is the "Blue", following the "Black" and "Green" ones.
    Expected retail price is $80. 
    Feature list:
    Processor: Octavo Systems OSD3358 1GHz ARM® Cortex-A8
    • 512MB DDR3 RAM
    • 4GB 8-bit on-board flash storage
    • 2×32-bit 200-MHz programmable real-time units (PRUs)
    • On-board flash programmed with Linux distribution
    Connectivity and sensors
    • Battery: 2-cell LiPo support with balancing, 6-16V charger input
    • Wireless: 802.11bgn, Bluetooth 4.1 and BLE
    • Motor control: 8 6V servo out, 4 DC motor out, 4 quad enc in
    • Sensors: 9 axis IMU, barometer
    • Connectivity: HighSpeed USB 2.0 client and host
    • Other easy connect interfaces: GPS, DSM2 radio, UARTs, SPI, I2C, analog, buttons, LEDs
    Software Compatibility
    • Debian, ROS, Ardupilot,
    • Graphical programming, Cloud9 IDE on Node.js


     
     
  4. Like
    bluehash got a reaction from Barcooler in MSP430 analog clock   
    Came across this while browsing.
    MSP430 Analog Gauge Clock

     
     
  5. Like
    bluehash reacted to Rei Vilo in I2C Wire Library Problem   
    Actually, the I²C implementation for the ESP8266 differs from the Arduino standard. Energia complies with the Arduino standard.
    I'm using I²C extensively on LaunchPads and I've never experienced any issues.
    The MSP430F5538 is not officially supported by Energia. Have you tried with a LaunchPad officially supported by Energia, e.g. MSP430G2553 or MSP430F5529? I don't have any MPL3115A2 at hand, so I can't proceed with tests. Does its data-sheet mention some non-standard usage of I²C protocol? Finally, have you tried to add a delay and change your code to Wire.beginTransmission(MPL3115A2_ADDRESS); Wire.write(regAddr); Wire.endTransmission(); // modified delay(100); // added Wire.requestFrom(MPL3115A2_ADDRESS, 1); return Wire.read();
  6. Like
    bluehash reacted to NurseBob in Audio Sampling - How to   
    You might also explore the software for one of TI's older experimenter boards which had the ability to record and play back audio for both specs and firmware.  Not energia-friendly, but still instructive.
  7. Like
    bluehash reacted to Fmilburn in Audio Sampling - How to   
    Hi @jBrizzle and welcome to 43oh...
    Maybe use a little module?  Depending on your needs in terms of recording length and number of recordings that might work.
    I have used these although not from this vendor:  https://www.amazon.com/Sound-Voice-Recording-Playback-module/dp/B018Q6TAEQ/ref=sr_1_2?ie=UTF8&qid=1489447073&sr=8-2&keywords=isd1820
    They are cheap and work for a single recording but the amplification and quality isn't great.  They can be controlled with a microcontroller.
    Maybe this:  http://processors.wiki.ti.com/index.php/Audio_Capacitive_Touch_BoosterPack_Hardware
    I don't have experience with it but it looks interesting.  I usually have a look at what Sparkfun and Adafruit are doing as well, even if I decide to make it myself.
  8. Like
    bluehash reacted to NurseBob in 20170311 - Upgrade   
    @bluehash
    Thank you for the hard work. I've had enough experience with running sites to know how time-consuming, and frustratiing, it can be.
    Bob
  9. Like
    bluehash got a reaction from tripwire in 20170311 - Upgrade   
    Hello Everyone,
    Thanks for being patient while the forums were being fixed and upgraded. One Friday morning(March 10th, 2017), the server went down. There was a memory issue, which stalled the SQL server and everything came to halt. 
    it had been fixed by Friday night,  but then went down again due to a mistake I made during the bringup. In the mean time, I also decided to try to upgrade the server(php and peripheral updates) as well as the forum software. I'm going to see how things plan out in the next couple of days.
    Any issues you see with the site, please reply to this thread.
    Thanks!
  10. Like
    bluehash got a reaction from zeke in 20170311 - Upgrade   
    Hello Everyone,
    Thanks for being patient while the forums were being fixed and upgraded. One Friday morning(March 10th, 2017), the server went down. There was a memory issue, which stalled the SQL server and everything came to halt. 
    it had been fixed by Friday night,  but then went down again due to a mistake I made during the bringup. In the mean time, I also decided to try to upgrade the server(php and peripheral updates) as well as the forum software. I'm going to see how things plan out in the next couple of days.
    Any issues you see with the site, please reply to this thread.
    Thanks!
  11. Like
    bluehash got a reaction from L.R.A in MultiTasking ultrasonic and color sensor with MSP-EXP432 and Energia.   
    Via Hackster.io
    MultiTasking ultrasonic and color sensor with Texas Instruments MSP-EXP432 and Energia.

     
  12. Like
    bluehash reacted to enl in 20170311 - Upgrade   
    Ah. I went through the log and saw that I had added the site as an exception on one machine (one I generally use for such) in 2015. Tried accessing from the shop machine today. I am surprised I haven't noticed before, but, then again, the shop machine has all of three bookmarks in the browser, since it is generally used only for the shop gear.
  13. Like
    bluehash reacted to enl in 20170311 - Upgrade   
    It appears that 43oh is rejecting https connections (browser: mozilla, system windoze8, urls tested: https://www.43oh.com/   https://forum.43oh.com/ )
  14. Like
    bluehash reacted to sparky in Mobile check   
    @bluehash
    test
  15. Like
    bluehash reacted to zeke in Telemetry for embedded systems   
    Hi EveryBody!
     
    I came across three software libraries on github that I thought I would share:
    pytelemetry telemetry pytelemetrycli  
    pytelemetry provides high-level communication with any embedded device for remote control and monitoring. Specifically, pytelemetry implements a custom communication protocol, based on the PubSub (Publish/Subscribe) messaging pattern.   telemetry is the C implementation of the protocol. It can run on any embedded system, along with official distributions for Arduino and ARM Mbed.   pytelemetrycli is a powerful command line interface to interact with embedded devices using the protocol. It enables instant data visualization of any received data, full logging of communications, health monitoring of the serial port and much more.   It looks like the libraries have been developed for the mbed and the arduino so far.   I've got these on my "to play with" bucket list.   YMMV
  16. Like
    bluehash reacted to Markel in MSP430FR5969 LP + Sparkfun HX711 0.0 lbs output ?   
    Hi,
     
       Just an update. I tested this at a weighing scale setup. My load weigh is 1 litre of water = 2.2 lbs. I run the SparkFun_HX711_Calibration.ino and got the calibration factor. I set the calibration factor at SparkFun_HX711_Example.ino. I got the correct weight displayed which is 2.2 lbs.
     
    Best Regards,
    Markel Robregado
  17. Like
    bluehash reacted to Rei Vilo in Netiquette for Newbies   
    Another idea from another forum:

    When a visitor is typing her question in, the forum scans it and shows answers. Basically, the forum goes through the question, extracts the keywords and performs a search based on them.

    The underlying software is used in many forums.

    Please find attached an example with a basic question on the RedBear forum.


  18. Like
    bluehash got a reaction from Shivasanketh in DAC   
    @@Shivasanketh, Energia support for C2000 is supported upto version 17.
    http://energia.nu/pin-maps/guide_c2000launchpad/
     
    I would suggest using the C2000 C linrary and examples to get your DAC running.
  19. Like
    bluehash reacted to lalo630 in IoT robotic car using the CC3200 and Blynk app   
    We finally got this tracked car running. The tension still needs to be adjusted.
     
    Here is the video:
    https://drive.google.com/open?id=0B4bw3NqG9tWWQzhIRmVXN2JGdXM
     
     
     Next step is to mount the hardware and start programming.
  20. Like
    bluehash reacted to StrangerM in FR6989 - internal RTS & Temperature sensor   
    Two examples. I
  21. Like
    bluehash reacted to zeke in DSO138 - Oscilloscope Kit   
    I found this DSO138 oscilloscope kit on HobbyKing today.
     
    It may be of use to some people out there who do have a limited test equipment budget.
     
    From what I can tell, it looks like you have to solder in all of the through hole parts to complete the build. And I think the processor comes pre-programmed.
     
    I don't own one of these. I just thought it was a cool and inexpensive tool for only $20.
  22. Like
    bluehash reacted to Fmilburn in Sharp Infrared Distance Sensor   
    This post covers my experiences with a Sharp IR sensor marked 2YOA2I F 7I  I received courtesy of @@bluehash clearing his desk a while back.

    Sharp IR sensors can be obtained that cover ranges from 4 - 30 cm up to 100 - 550 cm.   This one has a listed range of 10 - 80 cm. The coverage envelope / angle was not listed in the data sheet but seemed relatively narrow. Current consumption is around 30 mA on average.   Response time is listed as 39 ms.  The output from the sensor is an analog voltage which is inversely proportional to the distance in a nonlinear manner.
     
    Of particular note to those using TI microcontrollers is that it is a 5V device (the datasheet gives 4.5 to 5.5 V as the operating range for Vcc).  Most of my gizmos run off of 2 batteries at nominally 3V so I was interested in how it would work at lower voltages and ran a series of tests.  A bench power supply was used to supply constant voltage at 5.0, 4.5, 3.3, 3.0, and 2.5 Volts (accurate to better than 0.1 V).  I used a tape to measure the distance from the face of the sensor to a wall (distance accurate to 2 mm).  The voltage was measured with a digital multimeter and plotted against the inverse of distance to give a more linear curve.
     
    Here are the results:

    With Vcc set to 5.0 V and 4.5 V the output difference was minimal - the results are for all practical purposes the same and are in line with the datasheet.  The data for Vcc at 3.3 V and 3.0 V might be usable with the understanding that the curves began to offset some as Vcc drops, and that at 3.0 V the accuracy falls off at 15 cm, and at 3.3 V it falls off at 10 cm.  The sensor is not usable at 2.5 V.
     
    If highest accuracy is required, a test like the one described here can be undertaken instead of just using the curve in the datasheet.
  23. Like
    bluehash reacted to amaze1 in TI LaunchPad   
    Maybe this is not the more appropriate section but ... it seems there is free shipping now, even for order less than 150$ as announced, please someone check and confirm ...
     
    http://www.ti.com/ww/en/store/new-year-promotion/?HQS=ecm-tistore-promo-janlaunchpad-bti-lp-null-wwe
     

     
  24. Like
    bluehash reacted to lalo630 in IoT robotic car using the CC3200 and Blynk app   
    Hello everyone,
     
    I wanted to share my current project. I am building a robotic car using the blynk app. I will also be adding a robotic arm, video camera, Hotspot, solar panel, temp sensor and more.
     
    I am building this with a classmate for my senior project. I will post more details later as the project progresses.


  25. Like
    bluehash reacted to dubnet in Happy New Year!   
    Just wanted to take a moment and wish all the 43oh-ers a Happy New Year!     May the upcoming year be your best yet!
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