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    Thanks all. Seeing as 2021 is lining up to be...

    Thanks all. Seeing as 2021 is lining up to be the same as 2020, I have plenty of time to get my head around it all.
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    OK. Wow, this is going to be harder than I...

    OK. Wow, this is going to be harder than I thought.

    Does anyone have any suggestions for a TOTAL IDIOTS guide to ESP8266 stuff?

    From what I can gather, I need to set my ESP8266 as a client,...
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    Thanks all. I am wading through all the options....

    Thanks all. I am wading through all the options.

    My PCB is a custom affair, and has space left ready for a wifi addition. Whether I simply put a header on the pcb for a pre-made module, or...
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    Yea, trying to avoid Ebay. Nothing but scamming...

    Yea, trying to avoid Ebay. Nothing but scamming Chinese crap these days

    But just had a look out of interest and there were none
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    After a quick Google, it turns out that ESP-09's...

    After a quick Google, it turns out that ESP-09's are impossible to obtain easily (in the UK anyway).
    The other options listed above are hugely expensive.

    Found this...
    ...
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    Thank you for these suggestions, I will look into...

    Thank you for these suggestions, I will look into those further.
    I have a PCB for this project, and the second version will have the wifi, so I can easily put the correct footprint on the board for...
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    Smallest wifi module?

    Hello all

    After wading through what seems like 1000 different types/variations of ESP wifi modules, I still have not really found what I am looking for.

    My Teensy based project reads .TXT data...
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    Thanks Paul. I will get it one day

    Thanks Paul. I will get it one day
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    OK Paul. How do I calculate that new value? ...

    OK Paul.
    How do I calculate that new value? This is what I am struggling with. How to calculate this stuff.

    My bad maths works out 1.3mA to be 2.65K at 5v. Entirely possible that is wrong...
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    MOCD208 opto isolator question

    Hello clever folk

    I found an opto isolator circuit online, and have used it before in my circuits for inputting 12v to my projects (circuit attached).

    This circuit (according to the thread...
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    Thanks for the advice anyhow Frank

    Thanks for the advice anyhow Frank
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    So... I spent 2 hours trying to get it to upload....

    So... I spent 2 hours trying to get it to upload. Rebooted the PC, reworked all the PCB connections.... swore a lot.

    Walked away, watched Strictly come dancing.

    Came back, plugged it in and...
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    Yes, I have the page Frank. Thanks. I don't have...

    Yes, I have the page Frank. Thanks. I don't have a schematic yet.
    Its basically exactly the same as the Teensy 3.2 board.

    Just seems very odd that it uploaded perfectly the first time, and...
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    Teensy 3.2 upload issue

    Hello

    My 'home made' pcb is assembled, all seemed fine. Its basically a Teensy 3.2 lifted and re-assembled onto a new PCB.

    Plugged the new board into the PC. Got the Windows sound etc

    I...
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    What to use as a host program in Windows

    Hello people

    I have Googled, and found multiple examples of people sending data from their Teensy/Arduino to a PC over Wifi.

    I wish to do it the other way around, and there doesn't seem to be...
  16. Have you thought of supplying the stand-alone...

    Have you thought of supplying the stand-alone bootloader IC's through the UK suppliers of the Teensy main boards Paul?
  17. I think in hindsight Paul, I will wait and order...

    I think in hindsight Paul, I will wait and order a handful of bootloaders from you. Will probably throw in some extra Teensy 3.2 modules as well.

    Just wish this Goddam world would get back to...
  18. Yea I know. But GOD I'M BORED. Just tinkering...

    Yea I know. But GOD I'M BORED. Just tinkering around with projects to fill the days at the moment.
    Trouble is, you say... 'I'll just buy that bit for $20'... and it never ends :D

    As a side...
  19. Thanks you Paul. This isn't me 'dodging' buying...

    Thanks you Paul. This isn't me 'dodging' buying the correct parts I should add. I fully intend to carry on using Teensy's in my projects when (if) my income resumes.

    I designed a pcb a while...
  20. Hello chaps I have several Teensy 3.2's dotted...

    Hello chaps

    I have several Teensy 3.2's dotted around in finished projects. If I 'lift' the bootloader IC off one of those boards, will the board still run?
    I Googled bootloaders and there...
  21. I went with the TEENSY 3.2 for several reasons. ...

    I went with the TEENSY 3.2 for several reasons. 5v tolerant (although, I could design in level shifters), and it's ability to be HID device. Oh, plus I had one.

    I originally started with an...
  22. Hmm.... Nearly $20 and a 2/3 week wait (post to...

    Hmm.... Nearly $20 and a 2/3 week wait (post to the UK) for a single pre-programmed MKL02Z32VFG4 :(

    So, I either buy a Teensy 3.2 off UK Amazon for 20.89 and lift the bootloader off that (which...
  23. Yes, I found the link to the pre-loaded...

    Yes, I found the link to the pre-loaded bootloader. Expensive however (but I totally understand why).
    Made hundreds of stripboard and breadboard projects. Time I learnt pcb construction.
  24. Right, pretty obvious really. I need to load...

    Right, pretty obvious really. I need to load the bootloader software to the bootloader! But, that isn't available is it.
    So... my project dies right there.
  25. So, my first attempt at a PCB is assembled. And...

    So, my first attempt at a PCB is assembled. And when you plug it into the PC, it does not recognise it (no windows acknowledge sound).

    Can't see any wiring/design error (yet). Should a bare new...
  26. After extensive Googling.... I sussed that out. ...

    After extensive Googling.... I sussed that out. Thanks
  27. Or I could be talking complete rubbish.... is U2...

    Or I could be talking complete rubbish.... is U2 the bootloader?

    I assume USB0_DM is USB negative and USB0_DP is USB positive?

    There looks like 3 IC's on the Teensy 3.2 board. Damn my 53 year...
  28. Advice regarding circuit design and the bootloader

    I am the first to confess.... I am new to designing my own circuits.

    But, I have a project that I am moving over from my Teensy 3.2 breadboard to a PCB design.

    The Teensy 3.2 circuit diagram...
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    Hello clever folk I have a question regarding...

    Hello clever folk

    I have a question regarding capacitors (again).

    My Teensy circuit diagram shows 0.1uf capacitors. We have already deducted that they incorrectly show them as electrolytic. ...
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    Hello all Still plodding on with my project....

    Hello all

    Still plodding on with my project. All going OK.

    I assume all these capacitors on the Teensy are SMD ceramic. I am planning to add a couple of larger electrolytic caps to my 3.3v...
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    I found this diagram in this forum... I like the...

    I found this diagram in this forum... I like the idea of having 5v - 24v input ability. Seem ok?

    22107
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    Hi Just wondered if anyone has a suggestion...

    Hi

    Just wondered if anyone has a suggestion for a right angled PCB mount (through hole or SMD) connector?

    10 way and ideally needs to project out slightly from the PCB so it can exit the case. ...
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    Thank you for all the advice. I am pretty...

    Thank you for all the advice.

    I am pretty happy with my first go. The crystal is out on it's own, and there are not really many switching lines on this PCB, it's mainly I2C and serial to a couple...
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    Thanks chaps I 'think' I am OK. Do you...

    Thanks chaps

    I 'think' I am OK.

    Do you think a ring of ground around the crystal like that helps?

    I have run a 'clean' ground directly from the incoming supply, straight to the crystal....
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    Hmm... I have been searching, and found various...

    Hmm... I have been searching, and found various results.

    I am wondering whether to simply put a pad next to the crystal connected to its dual ground connections, then I can link that across to the...
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    Yes... I spotted that when I removed the 18pf...

    Yes... I spotted that when I removed the 18pf capacitors....

    Although, those 2 shared pads are ground. Should I leave those unconnected or maybe join to the ground plane when I copper pour the...
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    Thanks all I actually have managed to make a...

    Thanks all

    I actually have managed to make a reasonable first attempt. Stupid things like 'why have 3x 2.2uf caps in a row?' on the schematic become suddenly ... 'derr, one on each pin'.
    My...
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    Thanks for the advice. Oh I TOTALLY realise...

    Thanks for the advice.

    Oh I TOTALLY realise that I am not going to be anywhere near as efficient as the Teensy board design. It's more of a learning curve thing than anything else.

    I have...
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    Designing my own PCB - assistance

    Hello all

    I am having a go at designing my own PCB for a project. My first design uses a standard Teensy 3.2 directly mounted on top of the pcb for ease.

    However, this uses up a lot of real...
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    If i may ask... how do you guys access the pins...

    If i may ask... how do you guys access the pins under the 3.2 when designing a pcb? I Almost wish the 3.2 board was a little larger and all the pins on the same side.
    I was thinking of through...
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    Optically isolated 24v analogue input

    Hello world of people cleverer than I am

    I am designing a project board where I can control various 'things' from inputs. outputs etc. optically isolating my inputs and outputs with 6N137's....
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    Well, the Ebay HC-06 modules were 2 cheaper...

    Well, the Ebay HC-06 modules were 2 cheaper each...

    Estimated 20 hours swearing = a cost of 0.10p per hour

    Bargain :(

    So, anyone who ever find this thread while searching for HC-06 not...
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    Just as an ending to this thread.... Bought a...

    Just as an ending to this thread....

    Bought a HC-05 and a HC-06 from a UK supplier... not Goddam Ebay!
    Worked within seconds of plugging them in. Accepted all the commands... perfect.

    I am...
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    Don't worry. Google, beer and luck have produced...

    Don't worry. Google, beer and luck have produced results ;)
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    I am finding these libraries hard work actually....

    I am finding these libraries hard work actually. Working out what each part does it difficult for someone without the required knowledge.

    I have the following code so far, made up of various...
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    HC-06's have 4 pins and no reset button (like the...

    HC-06's have 4 pins and no reset button (like the ones I have). HC-05's have a different board layout and 6 pins

    I have tried every possible combination of pin, pass, password, pswd, +, = etc. ...
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    I just wish I could walk away from these things,...

    I just wish I could walk away from these things, but I hate being defeated....

    OK. Here is the link again:

    https://www.ebay.co.uk/itm/JY-MCU-HC...72.m2749.l2649

    It appears to be HC-05...
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    WHAT!!!! :confused: Wired it to a 2560p -...

    WHAT!!!! :confused:

    Wired it to a 2560p - Still didn't work.

    Then, as I randomly tried all options.... Serial1.println("AT+NAME:Steve"); Worked... It changed the name. Since when did...
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    I think the link is earlier in this thread...

    I think the link is earlier in this thread somewhere.

    Don't waste any more time on it.... I need to walk away from this thing, as it is eating up my time to no good end.
    MADLY frustrating, as I...
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    I have never had any response to a change command...

    I have never had any response to a change command except Error (0).
    I can get the baud rate, the old name, the version, the pin, the address........ but I can't change anything

    Sending AT first...
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