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bluehash

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  1. 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.
  2. 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.
  3. 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
  4. 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!
  5. 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!
  6. 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.

     
  7. 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.
  8. 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/ )
  9. Like
    bluehash reacted to sparky in Mobile check   
    @bluehash
    test
  10. 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
  11. 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
  12. 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.


  13. 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.
  14. 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.
  15. Like
    bluehash reacted to StrangerM in FR6989 - internal RTS & Temperature sensor   
    Two examples. I
  16. 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.
  17. 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.
  18. 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
     

     
  19. 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.


  20. 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!
  21. Like
    bluehash reacted to NurseBob in CCS Free   
    I just got the following email:
     
    CHANGES FOR CODE COMPOSER STUDIO (CCS)                                        
     
    As a long-term Code Composer Studio IDE customer we value your dedication. Thank you for being a loyal customer. TI has great news regarding Code Composer Studio (CCS); effective today Texas Instruments will no longer charge for CCS licenses.
     
    Going forward this means:
    You can upgrade simply by going to www.ti.com/ccstudio to download the latest CCSv7, install it and use it. You no longer need to use the myRegistered Software portal to manage licenses. For questions see FAQ: http://www.ti.com/lsds/ti/tools-software/ccs-faq.page
    For additional questions, please contact ccs_license_file_help@list.ti.com
     
    Texas Instruments, Inc.
     
     
    Given that not six months ago I paid $500.00 for this product, I can say it doesn't actually make me a fan...  Seems the sales rep might have been able to offer that I might want to wait a bit.
    On the other hand, I am in support of making professonal tools available to the maker market at non-corporate prices.  Now, if only someone could convince IAR to do the same!
     
  22. Like
    bluehash reacted to chillyjee in Serial/Serial1@57600bps on MSP432R Launchpad won't work   
    Thank you, I installed V18 and everything is fine now !
  23. Like
    bluehash reacted to Fmilburn in Serial/Serial1@57600bps on MSP432R Launchpad won't work   
    Hi @@chillyjee
     
    I noticed this bug in Energia V17.  It seems to be fixed, at least for back channel UART to the serial monitor, in Energia V18.
  24. Like
    bluehash reacted to electrotwelve in Switching the CC3200 from AP to Station mode   
    OK I got this figured. The challenge was switching back to AP once STA mode was activated. This code switches back to AP from whatever earlier mode was set. 'ssid' and 'wifipw' is the SSID and password defined for the AP.
    extern "C" { #include "utility/udma_if.h" } void switchToAP() { UDMAInit(); sl_Start(NULL, NULL, NULL); sl_WlanDisconnect(); sl_NetAppMDNSUnRegisterService(0, 0); sl_WlanRxStatStart(); sl_WlanSetMode(ROLE_AP); sl_WlanSet(SL_WLAN_CFG_AP_ID, WLAN_AP_OPT_SSID, strlen(ssid), (unsigned char *)ssid); unsigned char val = SL_SEC_TYPE_WPA; sl_WlanSet(SL_WLAN_CFG_AP_ID, WLAN_AP_OPT_SECURITY_TYPE, 1, (unsigned char *)&val); sl_WlanSet(SL_WLAN_CFG_AP_ID, WLAN_AP_OPT_PASSWORD, strlen(wifipw), (unsigned char *)wifipw); /* Restart Network processor */ sl_Stop(30); sl_Start(NULL, NULL, NULL); } To switch to the STA mode it was suggested in an earlier post to add WiFi._initialized = false; and WiFi._connecting = false; before doing a WiFi.being() but this was a hit and miss with my LP (rev 4.1). So this code switches it to STA mode. This is still not very reliable. Out of every 6 attempts to connect to a WiFi network, 1 attempt fails but here is the code anyway:
    void switchToSTA() { UDMAInit(); sl_Start(NULL, NULL, NULL); sl_WlanDisconnect(); sl_NetAppMDNSUnRegisterService(0, 0); sl_WlanRxStatStart(); sl_WlanSetMode(ROLE_STA); /* Restart Network processor */ sl_Stop(30); sl_Start(NULL, NULL, NULL); }
  25. Like
    bluehash reacted to petertux in GPS + GSM on MSP430 using Energia   
    you can have a look at an older project of mine here:
     
    https://github.com/rodan/tracy
     
    all the code is interrupt driven, no blocking calls, two different uarts are used. and it works nicely as an always-online tracker, it has more than an year uptime mounted on my motorcycle.
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