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    It is a digital equivalent of a "potentiometer". ...

    It is a digital equivalent of a "potentiometer". The encoder library will tell you which direction and how many pulses (think clicks) it was turned. You get to do the rest. By the way, if you want...
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    Those look like just switches to me, no...

    Those look like just switches to me, no electronics. They will run fine on 3.3V.
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    OK, I though you were referring to the stepper...

    OK, I though you were referring to the stepper driver carrier board.
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    Ah, I thought they were 3.5mm. I looked at using...

    Ah, I thought they were 3.5mm. I looked at using 2.54mm but couldn't get even the smallest ferrule in the samples I got so moved up to 3.5mm. Even those are pretty tight with ferrules. I agree...
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    Nice job! Based on the thread, I think you...

    Nice job! Based on the thread, I think you soldered the micromod connector by hand, right?

    If you make any changes to the carrier board, a few suggestions.
    - Support Trinamic based Step Sticks....
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    I see no evidence of stupid questions... In...

    I see no evidence of stupid questions... In fact, your servo questions are insightful.

    There may be a servo error input added to grblHAL in the future though there are plenty of ways to handle it...
  7. This sensor is very sensitive to the pull-up...

    This sensor is very sensitive to the pull-up value. You should probably start there. I had one that never did work with a T4.0 but would with a T2.0. I later managed to kill the sensor and the...
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    Well, for free is a bit of a come-on. There will...

    Well, for free is a bit of a come-on. There will be engineering fees, a lot of parts have a min order count and smaller SMD parts have "attrition" (think of it as the number of parts wasted loading...
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    JLCPCB has ESP-07s and ESP-12S in their library...

    JLCPCB has ESP-07s and ESP-12S in their library and, surprise, in stock. They also have a bunch of Espressif modules (and in stock, too!). This looks to be a fairly recent addition. We'll see how...
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    Not wanting to push the Chinese disti LCSC.com...

    Not wanting to push the Chinese disti LCSC.com but they have ESP-01, ESP-07, ESP-07S, ESP-12E, ESP-12F for good prices and volume discounts. You can get them via DHL or UPS for quick delivery -...
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    LCSC has a number of modules. Generally in the...

    LCSC has a number of modules. Generally in the $1-$3 range.
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    grblHAL on a Teensy 4.1

    grblHAL is an open source motion control system for CNC machines like mills, router, lathes, laser cutters and anything that uses stepper motors or servos. It is the 32-bit version of Grbl that...
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    For a low current, it works well. The spec say...

    For a low current, it works well. The spec say 200 mA though I would stay well below that - 100 to 150 max. Probably ok for this application.
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    JLCPCB capabilities -...

    JLCPCB capabilities - https://jlcpcb.com/capabilities/Capabilities
    They do 5 mil traces and .2/.45 vias. I've used them quite a bit for both 2L and 4L boards.

    If you can use them, their 4L...
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    FreqMeasure - minimum Pulse width

    I am measuring the max rate that a stepper motor is driven at. Because steppers require acceleration and deceleration for best performance, the train of pulses does not have a fixed period. It was...
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    Well, all the controllers on that list are based...

    Well, all the controllers on that list are based on the old 8-bit Arduino design and only support 3 Axes. Also, a lot of them don't have any isolation or noise control so EMI can cause problems like...
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    As long as you are looking at headers, It would...

    As long as you are looking at headers, It would be great to find 2x3 2mm header+socket for the teensy 4.1 that works with the the 2.54mm pitch sockets. I've had real trouble finding ones that work...
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    Thank god this was a false alarm. The last thing...

    Thank god this was a false alarm. The last thing I need is to deal with is customers not getting their stuff working because of counterfeit teensys.
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    OK, that was good for a laugh. Over at EEVBlog...

    OK, that was good for a laugh. Over at EEVBlog there are several long threads about the Blue Pill Problem including some decapped STM32F103 showing that they weren't made by STMicro. I think they...
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    FedEX says delivery on Tuesday 11/24. However, I...

    FedEX says delivery on Tuesday 11/24. However, I have another package (unrelated) that arrived at Memphis within 20 minutes (probably on the same plane) of the Boards and they are saying that will...
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    Amen to that. That's one of the reasons I based...

    Amen to that. That's one of the reasons I based my CNC board on the T41. Another is that, unlike the BluePills and such out there, it is a totally consistent package. If you buy a BluePill today,...
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    Welcome! It's good to have another WA company...

    Welcome! It's good to have another WA company building on Teensys.

    Looked at your store and see at least one Unicorn - reasonably priced 1x24 pin sockets! I usually just cut down 1x40s and hide...
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    I will post a message here when I know exact...

    I will post a message here when I know exact timing of the first delivery. Tindie waitlist is just for notifications, orders will be fulfilled FIFO.
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    I am out of stock right now but have a batch...

    I am out of stock right now but have a batch arriving in the next couple of days. And another batch is coming after that. Demand has been increasing and the Hackaday article was a bit of a tidal...
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    I am happy to help if you have any questions....

    I am happy to help if you have any questions. Feel free to contact me here or via email.

    For the GCode sender, the best solution right now is to use a Windows PC and run ioSender. It is very good.
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    THC update. I got the prototype torch height...

    THC update. I got the prototype torch height sensor back from JLC and it works. It plugs into the I2C header on the T41 BOB and uses an I2C isolator for full galvanic isolation. Next step is to...
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    You can also use Conn_01x24 in the Legacy Conn...

    You can also use Conn_01x24 in the Legacy Conn library. It doesn't have to be a socket but you do have to hook it up to 2.54mm pitch footprint - Pin_Headers:Pin_Header_Straight_1x24_Pitch2.54mm.
  28. Thanks! Should be shipping this AM.

    Thanks! Should be shipping this AM.
  29. Enough to make me realize you must really value...

    Enough to make me realize you must really value Robin! Keeping it all straight is a pretty amazing skill.

    And as a result, you are getting a few sales too! Probably not enough move your meter...
  30. Teensy 4.1 Based CNC Controller on Hackaday.

    Hackaday picked up my board design and did a nice write up.
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    Thanks for reaching out. Yes, UGS does work with...

    Thanks for reaching out. Yes, UGS does work with grblHAL but only in compatibility mode - I've tested it on windows. I have heard about issues running it on a Mac and RasPi, though. There is an...
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    Even extremely experienced engineers make those...

    Even extremely experienced engineers make those kind of mistakes. But instead of trashing a board with a missing wire, they (we) get out the soldering iron and add a bodge wire. It's kind of a...
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    It looks OK to me. It is fine to run the traces...

    It looks OK to me. It is fine to run the traces under the teensy. What kind of trace separation do you have there? Hard to tell from the image of the board. Unless you have to, I would not push the...
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    You don't include all of your code but it looks...

    You don't include all of your code but it looks like a start up issue. The input to the teensy pin should be high when the button is not pressed. I don't setting of pinMode() in your setup code. Do...
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    Yes, in Eagle a new version is had by saving with...

    Yes, in Eagle a new version is had by saving with a new name. Simple and intuitive. In Kicad, you have to rename a whole bunch of files, some of which are obscure.

    What I do is keep all the file...
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    essence of TruDat

    essence of TruDat
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    I started with Eagle about the same time and am...

    I started with Eagle about the same time and am making the same transition. Well, I've made the transition, now I'm just dealing with repercussions. I was so fast with Eagle - with Kicad I feel a...
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    Kicad, definitely. OSHPark will take Kicad PCB...

    Kicad, definitely. OSHPark will take Kicad PCB files directly though generating gerbers is not hard.

    Do not fear manual routing. It may take a while to get used to it but it isn't that hard and...
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    Yes, you need resistors to limit the current of a...

    Yes, you need resistors to limit the current of a bare LED. The Neopixels and similar have built in controllers that manage LED current. (worth learning as you can do all sorts of interesting...
  40. Thread: Teensy MicroMod

    by PhilB
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    Well, I'm not sure how strict that is. The SFE...

    Well, I'm not sure how strict that is. The SFE docs say you don't have to adhere to the pinouts. Honestly, the same 2x3 ethernet header on the compute board would decrease my interest level. At least...
  41. Thread: Teensy MicroMod

    by PhilB
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    I wonder if, instead of the 6 pin header, all the...

    I wonder if, instead of the 6 pin header, all the ethernet pins (R+, R-, T+, T- and LED) go through the micromod pins. They push USB D+ and D- through them so differential pairs are possible.
  42. Thread: Teensy MicroMod

    by PhilB
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    Yes, wait and see is good advice. Though, having...

    Yes, wait and see is good advice. Though, having a product based on the T4.1, I am keenly interested in this development. I think I see the potential for a pony in there.
  43. Thread: Teensy MicroMod

    by PhilB
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    I have only a surface understanding of the core...

    I have only a surface understanding of the core code so I could be wrong but looking at the github page, it appears the hypothetical micromod board would have fewer analog and digital I/O pins than...
  44. Thread: Teensy MicroMod

    by PhilB
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    Interesting to say the least. I wonder how...

    Interesting to say the least. I wonder how ethernet would be handled. Hypothetically, of course.
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    You have a pretty steep learning curve ahead. I...

    You have a pretty steep learning curve ahead. I suggest you start with something a lot simpler than a BGA package. Assuming you want to do surface mount, you could look at doing SOIC packages, 805 Rs...
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    In that case, a simple plug-in to read the...

    In that case, a simple plug-in to read the voltage could be written. My breakout board has a serial port header on it so you could use that to get the tip voltage. Sounds pretty easy at first...
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    A THC is in the development stages. Terje, the...

    A THC is in the development stages. Terje, the grblHAL developer is looking at it right now. The T4.1 has more than enough spare cycles. I'm pretty sure he would love to work with you on it. I have...
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    It can use the sd card on the teensy. The best...

    It can use the sd card on the teensy. The best way to use it is to put the card in the teensy and leave it. If you put the machine on the network via ethernet, you can download your GCode to it and...
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    Teensy 4.1 based CNC machines.

    I've posted about my Teensy 4.1 Breakout Board for grblHAL previously. There was some interest in seeing actual machines built with it. So,...

    Here is a show case of grblHAL based CNC machines...
  50. Yes, that doesn't need a beefy driver at all. ...

    Yes, that doesn't need a beefy driver at all. But, I would suggest you look at the TMC step sticks. They are head and shoulders above the others. I was using a 4988 in an astro tracker I made....
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