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Fred

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  1. Like
    Fred got a reaction from dubnet in A new MSP430 coming [MSP432 ARM]   
    The big question - who doesn't know what's coming but I fairly certain they'll be ordering one anyway?
  2. Like
    Fred got a reaction from D^2 in A new MSP430 coming [MSP432 ARM]   
    The big question - who doesn't know what's coming but I fairly certain they'll be ordering one anyway?
  3. Like
    Fred got a reaction from spirilis in A new MSP430 coming [MSP432 ARM]   
    The big question - who doesn't know what's coming but I fairly certain they'll be ordering one anyway?
  4. Like
    Fred got a reaction from oPossum in Updates and going forward   
    It'd be more convenient for me with separate forums, especially as I tend to bookmark the "new posts" link and see if there's anything new and interesting to read. There would be no need for SSO is they weren't separate anyway.
     
    Personally, I'd also like to see Energia moved to its own forum. I have zero interest in Energia and I frequently see a question pop up on 43oh. When I go to answer I then find it's about Energia and have nothing to say. (I know the section is shown but I usually miss it.) As it's cross-platform anyway so would be more appropriate in its own forum.
     
    Anyway, that's just my opinion. What I suggest you do is whatever suits you and makes your life easier. We'll cope!
  5. Like
    Fred got a reaction from bluehash in Updates and going forward   
    It'd be more convenient for me with separate forums, especially as I tend to bookmark the "new posts" link and see if there's anything new and interesting to read. There would be no need for SSO is they weren't separate anyway.
     
    Personally, I'd also like to see Energia moved to its own forum. I have zero interest in Energia and I frequently see a question pop up on 43oh. When I go to answer I then find it's about Energia and have nothing to say. (I know the section is shown but I usually miss it.) As it's cross-platform anyway so would be more appropriate in its own forum.
     
    Anyway, that's just my opinion. What I suggest you do is whatever suits you and makes your life easier. We'll cope!
  6. Like
    Fred got a reaction from pine in A new MSP430 coming [MSP432 ARM]   
    A totally new MSP on the way. I assume a new device rather than just a new LaunchPad, although the video focuses on LaunchPads.
  7. Like
    Fred got a reaction from cubeberg in A new MSP430 coming [MSP432 ARM]   
    A totally new MSP on the way. I assume a new device rather than just a new LaunchPad, although the video focuses on LaunchPads.
  8. Like
    Fred got a reaction from tripwire in A new MSP430 coming [MSP432 ARM]   
    A totally new MSP on the way. I assume a new device rather than just a new LaunchPad, although the video focuses on LaunchPads.
  9. Like
    Fred got a reaction from bluehash in PC unlock using NFC implant   
    I recent completed the prototype of my LoginNFC project. It's a combination of MSP430 acting as a USB keyboard (and CDC serial for configuration) and a TRF7970A NFC reader. The prototype was done with a F5529 LaunchPad and TRF7970A Booster - along with a ferrite antenna to improve the read range.
     
    It's working well and I did a small write-up here: https://0xfred.wordpress.com/2015/01/14/nfc-login-version-1-0/
     
    However, I don't really feel it's complete until I've got it off the dev board and made a decent PCB. This is my first double-sided PCB, first time with USB, first time with LQFP and QFN. Before I print out the transparencies and start etching (yes - I'm planning to hom eetch this) I thought I'd throw it out there for criticism - constructive or otherwise.
     
    Lots of inspiration from @@RobG and his F5510 board along with TI's reference designs.Thanks for that. I'm sure I've have messed up somewhere though!
     
    Here's what I've got. The vias are large (and the drill small) because they will be done with 0.6mm copper rivets. I thought I'd give myself a bit of leeway for centering the hole when I drill them. I've tried to minimise them and they'll be done by hand but there still seems to be more than I'd like. The part that's off the board is an inductor that seems to work well as an antenna. I need to get my implant as close as possible beside it.
     

     
    Eagle files attached if anyone wants to take a closer look.
    LoginNFC.sch
    LoginNFC.brd
  10. Like
    Fred got a reaction from bluehash in FRAM LaunchPad bundle offers (Feb 2015)   
    MSP-BNDL-FR4133IR (MSP430FR4133 LaunchPad with IR BoosterPack) now $17.99
    MSP-BNDL-FR5969LCD (MSP430FR5969 LaunchPad with Sharp
  11. Like
    Fred got a reaction from tripwire in FRAM LaunchPad bundle offers (Feb 2015)   
    MSP-BNDL-FR4133IR (MSP430FR4133 LaunchPad with IR BoosterPack) now $17.99
    MSP-BNDL-FR5969LCD (MSP430FR5969 LaunchPad with Sharp
  12. Like
    Fred got a reaction from pine in FRAM LaunchPad bundle offers (Feb 2015)   
    MSP-BNDL-FR4133IR (MSP430FR4133 LaunchPad with IR BoosterPack) now $17.99
    MSP-BNDL-FR5969LCD (MSP430FR5969 LaunchPad with Sharp
  13. Like
    Fred got a reaction from bluehash in New Launchpad just dropped   
    And now a 30% off deal when bundled with the IR booster pack. Valid until end of Feb.
    http://e2e.ti.com/blogs_/b/msp430blog/archive/2015/02/19/save-money-when-you-buy-msp430-fram-launchpad-bundles
  14. Like
    Fred got a reaction from vinicius.jlantunes in New Launchpad just dropped   
    And now a 30% off deal when bundled with the IR booster pack. Valid until end of Feb.
    http://e2e.ti.com/blogs_/b/msp430blog/archive/2015/02/19/save-money-when-you-buy-msp430-fram-launchpad-bundles
  15. Like
    Fred got a reaction from Oppa in TRF7970A NFC booster now in eStore   
    @@OppaErich I did some tests on NFC readers. The DLP-7970ABP is no better or worse than other readers with a PCB antenna. DLP never mentioed it to me but they actually make a coil antenna that works much better I wrote it up here.
     
    As part of my first project using the implant, I ported the example code over from the G2553 to the F5529. I expected it to be just a case of changing a few pin assignments and sorting out the clocking, but for some reason it took me quite a while. (Not helped by the fact that at one point I accidentally deleted the line that enabled the reader and didn't realise.) I'll post the ported code when I get it cleaned up a bit.
     
    I'll write the project up here soon, but for now you'll find it on my blog. It uses the HID keyboard to unlock my work PC when I scan it.
    http://0xfred.wordpress.com/2015/01/14/nfc-login-version-1-0/
  16. Like
    Fred got a reaction from led in TRF7970A NFC booster now in eStore   
    @@OppaErich I did some tests on NFC readers. The DLP-7970ABP is no better or worse than other readers with a PCB antenna. DLP never mentioed it to me but they actually make a coil antenna that works much better I wrote it up here.
     
    As part of my first project using the implant, I ported the example code over from the G2553 to the F5529. I expected it to be just a case of changing a few pin assignments and sorting out the clocking, but for some reason it took me quite a while. (Not helped by the fact that at one point I accidentally deleted the line that enabled the reader and didn't realise.) I'll post the ported code when I get it cleaned up a bit.
     
    I'll write the project up here soon, but for now you'll find it on my blog. It uses the HID keyboard to unlock my work PC when I scan it.
    http://0xfred.wordpress.com/2015/01/14/nfc-login-version-1-0/
  17. Like
    Fred got a reaction from pine in TRF7970A NFC booster now in eStore   
    @@OppaErich I did some tests on NFC readers. The DLP-7970ABP is no better or worse than other readers with a PCB antenna. DLP never mentioed it to me but they actually make a coil antenna that works much better I wrote it up here.
     
    As part of my first project using the implant, I ported the example code over from the G2553 to the F5529. I expected it to be just a case of changing a few pin assignments and sorting out the clocking, but for some reason it took me quite a while. (Not helped by the fact that at one point I accidentally deleted the line that enabled the reader and didn't realise.) I'll post the ported code when I get it cleaned up a bit.
     
    I'll write the project up here soon, but for now you'll find it on my blog. It uses the HID keyboard to unlock my work PC when I scan it.
    http://0xfred.wordpress.com/2015/01/14/nfc-login-version-1-0/
  18. Like
    Fred got a reaction from tripwire in Scan Interface Applications - Five Members Win A Target Board And An MSP-FET   
    I know that my ESI project stalled over the Christmas break and I must admit I was struggling with it before that. I notice that nobody else seems to have any updates recently. I feel an update is probably due even if it's just this:
     
    My impression is that the FR6989 is an awesome chip (especially EnergyTrace++) but that the ESI is a rather... er... how shall I put it... niche interest peripheral. It takes a lot of effort to get the best from it and it's difficult to stretch it beyond the exact use cases already documented by TI. Has everyone else come to a similar conclusion?
  19. Like
    Fred got a reaction from abecedarian in Scan Interface Applications - Five Members Win A Target Board And An MSP-FET   
    I know that my ESI project stalled over the Christmas break and I must admit I was struggling with it before that. I notice that nobody else seems to have any updates recently. I feel an update is probably due even if it's just this:
     
    My impression is that the FR6989 is an awesome chip (especially EnergyTrace++) but that the ESI is a rather... er... how shall I put it... niche interest peripheral. It takes a lot of effort to get the best from it and it's difficult to stretch it beyond the exact use cases already documented by TI. Has everyone else come to a similar conclusion?
  20. Like
    Fred got a reaction from jelledebock in Launchpad as USB to Serial programmer   
    The G2 launchpad used to be so cheap I've seen it recommended for just this sort of thing. Whether you go for the G2 or the F5529 launchpad all you will need to do is remove the jumpers between the FET side of the board and the target microcontroller. You might as well remove the DIP chip on the G2 but you shouldn't need to.
  21. Like
    Fred got a reaction from pine in Looking for mini X Y platform   
    XY stage or XY table might be a good Google search. There are some really nasty "laser engravers" on eBay that use a laser diode. I really wouldn't recommend them for that because of the unprotected doide that's not powerful enough to be useful but powerful enough to be dangerous. However you could probably ditch the laser and adapt one. As roadrunner said, printers and scanners can be useful for a DIY solution.
     
    Of course if you'd really like a 3D printer, CNC mill or laser cutter this could always be a nice justification to treat yourself. Just think of the money you'd be saving by making it dual purpose!
     
    What are you making? A bit more info might help.
  22. Like
    Fred reacted to estratos in panStamp NRG is already on sale   
    Dear colleagues,
     
    I'm more than happy to announce the release of panStamp NRG, our new Wireless ISM (868/915 MHz) module based on the CC430F5137 MCU and programmable from the Arduino 1.5 IDE.
     

     
    panStamp NRG is pin, radio and software compatible with our classic AVR modules but entirely relies on a Texas Instruments CC430F5137 MCU instead of our old Atmega + CC1101 approach. As result, we are getting a more robust module providing more features, more speed and consuming less power.
     
    Wiki page
    Commercial website
    Webstore
     
    panStamp NRG can be programmed serially from the Arduino IDE or even wirelessly from our Python tools. All related to panStamp is open source, including hardware designs, cores, libraries and software tools so our users don't need to invest in development toolchains or configuration applications. We also provide sample applications, an open protocol called SWAP and software IP gateway to start deploying WSN (Wireless Sensor Networks) and developing IoT applications from the first day.
     
    Another nice feature of NRG is that it can host multiple sensors on-board. There is then no need to develop or buy additional boards for measuring temperature, humidity or 3-axis acceleration since all these sensors can be hosted by this tiny module. Simply grab your application, power the module from a 3V coin battery and display the readings from any of the software applications compatible with panStamp.
     
    panStamp NRG is already on sale and we are offering a 15% discount in all our products for the members of the 43oh community until 15 January 2015. You just have to fill your cart and send us an e-mail asking for the discount before completing the payment.
  23. Like
    Fred reacted to enl in High torque gearmotor for upcoming project   
    Spent some time prepping for a new project, and realized I haven't seen the techniques I use shown, so I figured it is as good a time as any. There are likely people that could use the information, and I have a cat on my lap, so I have time.
     
    The project I am working on (to be disclosed if I get it done to m satisfaction) requires a pretty high torque, fairly fast drive. The requirement is to move about 10mm in 100mS, position withing 0.1mm, with a force of about 50N (3/8" motion to about 0.004", with a force of about 10Lbs, for those that are trapped in the world of imperial units). Not earth shaking, but beyond the cheap hobby servo.
     
    The cheapest, and one of the most convenient, moderate torque drive available is the battery screwdriver. Not the big gun shaped job, but the homeowner type. The good one are about $20US new, but I usually pay $0.50 to $1.00 at yard sales and swap meets. There are millions of them. Most with little to no use. People buy them for themselves or as gifts without realizing that this little bugger in not the same as the $150 Dewalt. After they sit in the drawer unused for a few months or years, I get them cheap. They have been around for at least 30 years, with 1/4" hex drive, planetary reduction, 180RPM nominal, and design voltages of 2.4 to 4.8V.
     
    The one I dissected this time tests out at about 250Ncm at 1V, with a no load speed of about 70RPM. The design voltage is 3.6V, and it will probably stall at close to 1000Ncm (10Nm) at that. If more is needed, then I can up the voltage for short bursts. I doubt that will be the case, as at 1V, I have much more torque than I need using a 15mm arm. For the output shafts and actuator levers, I use 1/4" allen wrenches, also yard sale grabs, preferably unhardened, so the cheapest sub-harbour-freight quality is fine. If they don't stay in place themselves,a little epoxy or gel CA does it.
     
    For this project, the first thing I did after ditching the battery end (should have been second) was mount screw terminals. There are no electronics. The switch presses contacts directly on the motor terminals, and the battery was mounted in the swivel handle. All gone, and nice big holes (12mm dia) through the body for mounting and reaction against torque.
     
     
    The first and last show the parts I used and the installed terminal. Clean and fairly neat. Last shows a sampling of the drivers in my junk box. All are black and Decker. Models are LI2000 (3.6V LIon, 330g as it sits), which is a current model,. I use this one for its intended purpose.  9078 (the one being remodeled here), which is 380g as it sits without battery or handle. Heavy. Metal gearcase. Next is a 9071, about 15 years old. 2.4V and 440g. Last is a 9018,, maybe made in 1985 or so. 2.4V and 250g. Only the first cost over $1
     
    Edit: fixed image



  24. Like
    Fred got a reaction from bluehash in 43oh Server Slow Responsiveness.   
    Seems much quicker for me now. And Congratulations!
  25. Like
    Fred reacted to alikian in Mini CC3200 Breakout   
    Guys, CC3200MOD is out but the price is pretty high $20 for 1K
    And the other bad thing about it is that still doesn't have any Antenna on it and you need to put external Antenna.
     
    Very disappointed.
     
    http://www.ti.com/product/CC3200MOD/samplebuy
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