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Paul: thanks for your answer. I guess the release candidate part tripped me up and the MTP comments left me wondering. I am in the middle of making a industrial OPC module that the stakeholder has asked for, to replace Siemens PLC interface modules with a product that reads from Micromotion...

I use and rely on MTP. In this version is MTP stable enough to depend on? I am currently using 1.60.

Well please don't drop the ethernet, I, and I'm sure others do use it. Dropping it for one user does not make sense.

Basically the footprint is just a pattern of the holes and the locations needed and is not going be part specific. You can give it a name in Diptrace as a part. I guess i don't see the issue here?

Well i use diptrace. You can make a component and footprint and save it as a component. Then it is static and wont change. I think Kicad is the same?

I just use two 1x24 headers and a 1x5 and the 2x3 for ethernet on the PJRC site.

I have ran wireline tools in high temp geothermal wells over 400 - 500F. We enclosed the tool in a stainless steel vacuum chamber, Dewar that was made for the application. Depending on the well temp we could get 8 hours or more logging time maybe that is a solution for you? National K Works...

Can the teensy 4.1 processor be exchanged with an industrial MIMXRT1061C type? Is this compatible? I would like to do this on my own circuit board to use in a explosion proof enclosure outdoors and am worried about the exposure to direct sunlight and 100F+ temperatures.

Paul et al, any chance or interest of a Teensy industrial version using the NXP i.MX MIMXRT1061, 528MHz, ARM M7, Industrial Temperature?

Why won't it work with a 4.1?

Thanks I changed that! Let me know if you see anything else. I have integrated the OPC into a larger Data acquisition program and am getting good results so it looks like this can be done on a teensy!

Corrupted software?

Did you try rebooting the computer? I've seen this and a clean start-up helps me

shawn, will it make a difference? seems to work but i will change that if it is causing a problem?

Proof of concept attached. tested with Siemens Step 7 PLC. had to jump through some hoops to get it to work but it is possible and fast enough.

Moving ahead one step at a time. So far i have proved TCP framing queueing bridge/adapter/client flow Proved it is feasible to do on a Teensy... Still need message construction and the full implementation of the open62541.

bk40, like I said i have to pursue this course for now. The web page is a simple http on port 80. nothing special. the developer of the pc app wants to get the data from the OPC server he has implemented. I have told him 20ms isn't going to happen that i am going to send the data to OPC by...

Joe, I know, but no. They want to use ethernet to the OPC server. I'm kind of boxed in here. Of course if it can't be done with the OPC and I prove it can't be done...

First - I am trying to send pressure values (1 to 4 sensors) and modbus values acquired from a coriolis meter to a OPC server that is also connected to a PLC using a teensy 4.1 to avoid purchasing more PLC modules (due to the cost and lack of slots, and the teensy box is already in place reading...

Is it possible to implement an OPC server or server on a teensy 4.1? Has this been done? Really anything OPC UA?

Thanks guys - i found it in C:\Users\User\AppData\Local\Arduino15\packages\teensy\hardware\avr\1.60.0\cores\teensy4. i had changed the one in libraries in the Sketch folder but that only changed part of the label not the drive name in explorer but the name under it did change. Why would MTP...

I have edited MTP_Teensy.h and still cannot get the drive name to change? I am using the latest Arduino 2 with VS Visual Micro. I even asked CHATgpt and it came to the conclusion that it can't be done?

The device is the https://www.logitechg.com/en-us/shop/p/farm-simulator-side-panel joy stick. I have built a data acquisition system using a teensy 4.1 and want to add a joystick to control a back pressure choke for manual MPD drilling control.

Yes I will do some trial and error with the example, thanks. Do you, or anyone for that matter, know where to get serious logitech documentation? Like comms details or protocols for talking with the Logitech joystick via USB?

Is there a method to use a logitech USB joystick on the teensy 4.1?

What scope did you buy, I have been looking but on a budget?

Yeah i got that too. And they linked to this discussion for the spec's on the new board. I thought that was kind of crappy.

charnjit what is the full path for the location that you found it?

Can someone guide me in setting up PIO? I tried installing visual code an the install hangs. Is there another UI, I have visual studio? Also how do I set up PIO? Everything I have read seems confusing??

Saw this today - https://www.allaboutcircuits.com/news/qualcomm-to-buy-arduino-powering-a-new-era-of-open-hardware/?user_mcid=d7575084cc&utm_source=All+About+Circuits+Members&utm_campaign=c48efcea4f-EMAIL_CAMPAIGN_2025_10_16_12_26&utm_medium=email&utm_term=0_-c48efcea4f-266133449. And there...

Gabriel M, could you tell me the Name and where you got your 4" display and what drivers? I'm looking for one to connect to a Teensy 4.1 Thanks!

Thank you for your answers. Pretty much the only one I have found is the adafruit https://www.adafruit.com/product/5794 display. I guess i will have to use the ESP32 as a man in the middle, seems there is no other options.

@JimSoft, did you ever get this working?

Can anyone recommend a teensy 4.1 compatible 4inch x 4inch TFT LCD touch screen? I'm wanting to add one to my new project. Thanks

@mjs513 Can you tell me how you send a reset command?

Oh, yeah. Thanks

I asked ChatGPT and it seems that this works - SD.sdfs.ls(&Serial1, "/", LS_R); Is there a reference to MTP somewhere that has this kind of info?

Thanks Joe! What is the MTP function to list files to my serial output? I previously used Serial1.println(F("\nList of files on the SD.")); sd.ls(&Serial1, "/", LS_R); Serial1.println(F("")); But that doesn't work any longer with Paul's version I guess?

I the documentation I've read it said it needs to be run when there is a change to the file or when the file is closed? Is this wrong? And what does it do anyway?

????

It was a monitor that had usb and card reader capability.

Well I don't know how, I certainly didn't mean too. Also it's just a single drive I. H was another device. It also shows up when i use a MTP example program. I think it has something to do with the Serial + MTP Disk (Experimental) setting

Question, when should i use MPT.reset()? Is it needed?

I know this is an old thread but maybe someone can explain why when i use MTP, the teensy shows up under this pc but also two additional drives show up in my drive list, I and H? When i click on either one windows says please insert disk. It's not an big issue but can anyone explain why and if...

follow-up: ok reloaded teensyduino and reset (agin) and it's working now. Strange

After trying to load the above code i get this error again Unable to open COM3 for reboot request Windows Error Info: Access is denied. more ideas... https://forum.pjrc.com/threads/40632?p=126667&viewfull=1#post126667 Teensy did not respond to a USB-based request to enter program mode...

ok got it back after several resets... Can someone look over my example program and see if there is anything that could have screwed it up?

I tested with a new teensy by plugging it into the usb and it behaves as it should but i have not attempted to program it as i don't need it broken too

I was messing around with MTP and made the above changes to MTP_Teensy.h with one of the example programs and now the teensy 4.1 won't show up as a usb device in Arduino. The comm port (com4) shows but not the HID. I can't program it any longer. Did i break something? Error is Teensy should...

FYI - I'm using Pauls version. Can you tell me where i can find that file?