Forum Rule: Always post complete source code & details to reproduce any issue!

Search:

Type: Posts; User: PhilB

Page 1 of 7 1 2 3 4

Search: Search took 0.01 seconds.

  1. Yeah, OSHPark runs about 8-10 days with the...

    Yeah, OSHPark runs about 8-10 days with the default options. You do anything different (like black mask), it will take about 2 weeks.

    I have used PCBWay and JLCPCB. I don't recall significant...
  2. Replies
    23
    Views
    1,355

    Update to this thread. The Bel Magjack/USB combo...

    Update to this thread. The Bel Magjack/USB combo device is out of stock everywhere. However there is a pin compatible replacement available - The Abracon ARJE-0032. I looked at the datasheet and it...
  3. Zero in stock at Digikey, too. Looked on...

    Zero in stock at Digikey, too. Looked on findchips - sold out everywhere. sheesh.

    Edit: You may be in luck! The Abracon ARJE-0032 is said to be a direct (ie, pin compatible) replacement. I...
  4. On a slightly different topic, I have a new...

    On a slightly different topic, I have a new version of the Teensy 4.1 grblHAL board coming that routes the HostUSB pins to a USB A socket. The purpose of that is to allow USB MPG/Pendant/game...
  5. You can order a board from OSHPark. There are...

    You can order a board from OSHPark. There are two to choose from
    The board shown above[1]. $7.90 for 3
    A wide version with mounting slots. $8.35 for 3
    The wide version is basically the same as...
  6. Replies
    64
    Views
    7,457

    Yes, I got your order. Thank You. Will ship...

    Yes, I got your order. Thank You. Will ship tomorrow. Shipping times to Germany generally take 10-14 days.

    Yes, it is possible. You may need to make modifications to the board for spindle sync....
  7. Replies
    5
    Views
    197

    I would first verify that your side is working...

    I would first verify that your side is working correctly. Test loop-back where you connect your TX to your RX. Send something and see if you can receive it. I would do this both for the Teensy TX/RX...
  8. Replies
    5
    Views
    572

    I think the question is about a Teensy that is...

    I think the question is about a Teensy that is not powered from USB and thus has no source of +5V for the Host USB connector. You will need to provide external +5V for that. What is driving the...
  9. Replies
    9
    Views
    386

    While that doesn't look perfect to me, the...

    While that doesn't look perfect to me, the standards for what constitutes a misaligned component allows for a surprising amount of misalignment. Considerably more than the naked eye would be able to...
  10. Replies
    8
    Views
    318

    So the actual device is some distance...

    So the actual device is some distance (300-400mm??) from the ADC? I would definitely use shielded wires. If filtering (hw or sw) isn't enough to deal with the noise, I'd use an external ADC as close...
  11. Replies
    8
    Views
    318

    Your description is a bit confusing to me. ...

    Your description is a bit confusing to me.

    First, are you reading a quadrature encoder via an ADC? That's not how I would do it but each to their own. Got Datasheet?

    When you say "fluctuates...
  12. Replies
    490
    Views
    56,068

    Which is why I have been using I2C ADCs - you can...

    Which is why I have been using I2C ADCs - you can get a lot cleaner signal into (and out of) one of those. An ADC in a microcontroller is subject to a lot of compromises. I like it when the...
  13. Replies
    490
    Views
    56,068

    I got a couple of the M.2 connectors and they...

    I got a couple of the M.2 connectors and they look to be pretty tricky to hand solder. Lots of solder wick, for sure. I'd go for reflow. Definitely not for your average hobbyist. Costs a lot more...
  14. The UI is a little obscure. -...

    The UI is a little obscure.

    - Route/Differential Pair. Get as far as you can. hit escape
    - Finish using individual routing.
    - Route/Tune Track Length.
    - Click on which ever is the longest...
  15. 50mm is ok. Just length match them. Ideally,...

    50mm is ok. Just length match them. Ideally, you would run the T and R pairs next to each other as much as possible. Here is what I did on my most recent T4.1 board. Note, that is for a different...
  16. Hi, Ken, there really isn't much magic to the...

    Hi, Ken, there really isn't much magic to the traces. Since the goal is to have equal lengths, the Kit board traces won't help you very much. For the receive and transmit lines, I would use...
  17. Replies
    5
    Views
    300

    I have looked at sensing soil moisture to control...

    I have looked at sensing soil moisture to control irrigation off and on for 20+ years. I think it is a quixotic quest. Even if you could create a perfect sensor (inexpensive, long lasting, reliable,...
  18. Replies
    490
    Views
    56,068

    I have been spending some time with the RasPi...

    I have been spending some time with the RasPi Pico and one thing they did that I really like is a Schottky diode between VUSB and 5V outputs. While it does cause a diode drop on the power line, I...
  19. Replies
    13
    Views
    463

    I'm using the 6N137 on a Teensy's output. The...

    I'm using the 6N137 on a Teensy's output. The opto inverts the signal - when the internal LED lights, pin 6 goes to 0. You can fix this by connecting +V to pin 2 and the signal on pin 3 with an...
  20. Replies
    8
    Views
    344

    If you get a board built by JLCPCB, please write...

    If you get a board built by JLCPCB, please write back with a status report. I just populated the MagJacks myself. I'd like to know how them assembling it goes for you.
  21. Replies
    8
    Views
    344

    Actually, JLCPCB has a number of MagJacks that...

    Actually, JLCPCB has a number of MagJacks that can be made to work with the Teensy 4.1. But before that, a PSA.

    A MagJack is an RJ45 connector with the necessary magnetics to connect an Ethernet...
  22. Replies
    4
    Views
    376

    What are you trying to do with the teensy? Do...

    What are you trying to do with the teensy? Do you need Ethernet or Host USB? Probably the easiest breakout is a solderless breadboard.
  23. Replies
    14
    Views
    833

    I have been thinking about this idea in the...

    I have been thinking about this idea in the background since you posted it. I am wondering if a custom smart motor controller could reduce your I/O requirements. The idea is each "bob" has a...
  24. Replies
    2
    Views
    249

    Some details to be worked through. Assuming you...

    Some details to be worked through. Assuming you have a high side load, this is a decent tutorial. You definitely want Rb to limit your current through the teensy pin. I'd use 5 mA as the goal. The...
  25. Replies
    490
    Views
    56,068

    but ot can be fun. I blame it all on Monster...

    but ot can be fun. I blame it all on Monster with their "oxygen free copper" BS. I recall seeing some hype about it broadening the soundstage and reducing the noise floor. PT Barnum would recognize...
  26. Replies
    490
    Views
    56,068

    $1000? Try used for $6499.00 + $80 shipping. The...

    $1000? Try used for $6499.00 + $80 shipping. The "horsie" makes it better. And I don't think the date is related...

    But Audio products are often the domain of scam artists. The placebo effect is...
  27. Replies
    64
    Views
    7,457

    Yeah, that one corner is a bit tight. When I...

    Yeah, that one corner is a bit tight. When I designed the board, I used 4-40 screws to model against. They clear tight but ok. Other screws like M3s are a little bigger. I have since moved to M3...
  28. Replies
    490
    Views
    56,068

    I like the look of the KaRo compute modules....

    I like the look of the KaRo compute modules. Something similar based on the 1170 would be pretty interesting to me. The one issue that gives me pause is the exposed ground plane that prevents top...
  29. Replies
    4
    Views
    308

    Looks like it does not support the Ethernet and...

    Looks like it does not support the Ethernet and Host USB headers. That is a reasonably good price, though.
  30. Replies
    490
    Views
    56,068

    The ethernet header has 2mm spacing. Doesn't...

    The ethernet header has 2mm spacing. Doesn't change your points though.
  31. Tindie is a reasonable place to do it. I've been...

    Tindie is a reasonable place to do it. I've been using Tindie and have sold over 300 units so far in 8 months. It was a little bit of a nail biter when I ordered my first batch of 50 boards but they...
  32. Replies
    12
    Views
    8,313

    Yes, the SKR E3...

    Yes, the SKR E3 is the one that I was thinking of. I see them on Amazon, eBay and AliExpress. I don't know if they have been counterfeited yet but better to buy from a known supplier. The other...
  33. Replies
    14
    Views
    833

    Interesting project. Since you aren't going to...

    Interesting project.

    Since you aren't going to be able to control all 500 motors directly from a processor, you will need some sort of distributed control. I assume you've already figured that...
  34. Replies
    14
    Views
    637

    I don't quite understand the application here but...

    I don't quite understand the application here but do the relays have the same make and break times? If not, it is likely that when you go from, say, 0110000 to 0001000 there is a period of 0111000...
  35. By the way, the latest main repository version in...

    By the way, the latest main repository version in conjunction with ioSender has a new grbl settings report. It is far superior to the old bit-field approach and organizes the settings by area rather...
  36. Hi, sorry I missed this earlier. bCNC on a RPi...

    Hi, sorry I missed this earlier. bCNC on a RPi works well with grblHAL though you should have the latest bCNC version as there have been some fixes along the way. I've tested on a RPi3 and RPi4.
    ...
  37. Replies
    12
    Views
    8,313

    For a controller, you might want to look at the...

    For a controller, you might want to look at the Big Tree Tech LPC board. Marlin 32 support. They occasionally have some quality issues but are not expensive.
  38. Replies
    490
    Views
    56,068

    It is a huge departure for PJRC (from BB friendly...

    It is a huge departure for PJRC (from BB friendly boards) and doesn't really bring out new features. Is there a cost advantage? Given that you need a base board and based on Sparkfun prices, the...
  39. Replies
    205
    Views
    15,749

    I got my RP2020 MMod boards yesterday. Haven't...

    I got my RP2020 MMod boards yesterday. Haven't done anything with them yet, though.
  40. Replies
    490
    Views
    56,068

    Shaken, not stirred.

    Shaken, not stirred.
  41. Replies
    490
    Views
    56,068

    Gawd no! You did nothing wrong and I'm sure Paul...

    Gawd no! You did nothing wrong and I'm sure Paul and Robin knew about it anyway.
  42. Replies
    490
    Views
    56,068

    Somebody broke embargo! Interesting. Is that an...

    Somebody broke embargo! Interesting. Is that an ethernet Phy I spy? (on second thought, probably not)
  43. Replies
    490
    Views
    56,068

    The Teensy format (AKA Stamp) excels for...

    The Teensy format (AKA Stamp) excels for breadboarding use. This is one reason why Teensys have been so popular. (Though, by far not the only reason)

    I've looked at micromod and concluded it buys...
  44. Replies
    12
    Views
    1,196

    As I understand it, any of the TMC drivers that...

    As I understand it, any of the TMC drivers that can run on 3.3V or 5V are affected by it. PFET is not a bad idea at all. I've been through a lot of TMC driver datasheets (2208, 2209, 2130, 5160)...
  45. Replies
    8
    Views
    274

    You know about Teensyduino? Except for MCU...

    You know about Teensyduino? Except for MCU peripherals, it should mostly be a recompile.
  46. Replies
    3
    Views
    204

    Yeah, feces occurs. I blew another T4.1 the...

    Yeah, feces occurs. I blew another T4.1 the other day because I soldered in the wrong MagJack on the base board and it literally blew the top off of the Phy chip.
  47. Replies
    8
    Views
    274

    To be honest, I don't quite get what you are...

    To be honest, I don't quite get what you are trying to do. Based on grblHAL, the teensy 4.1 is capable of handling at least 5 stepper (step/dir/enable) outputs at once using hardware PWM. 600 kHz...
  48. Replies
    490
    Views
    56,068

    Need 8 ports? pretty uncommon. But need 12-16...

    Need 8 ports? pretty uncommon. But need 12-16 more GPIO pins? Way more likely. And LCD pins? Hell yes. I'd love to see a Teensy 4.0 format with 2 rows of pins on either side. Put the less needed...
  49. Replies
    64
    Views
    7,457

    Your servo error outputs will need to be open...

    Your servo error outputs will need to be open collector. Most of the error outputs I have seen are OC and pull the signal low on an error. If you want to wire OR them, you will need to set the EStop...
  50. Replies
    64
    Views
    7,457

    I look forward to seeing the results of your...

    I look forward to seeing the results of your efforts.

    A number of my customers using servos bring the error signal into EStop. There is a movement to bring out another input signal -...
Results 1 to 50 of 339
Page 1 of 7 1 2 3 4