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  1. One of these...

    One of these might solve your battery problem. Battery powered by 18650 cell, outputs 5v and 3.3v. Use the 5v and power the teensy as well, or 3.3v to teensy and 5v to ADC.
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    Yes, I have just ordered a 4.1 with pins,...

    Yes, I have just ordered a 4.1 with pins, Ethernet Kit and PSRAM for 34.19 inc. 1st class postage.
    Pi Hut have just reduced the 4.1 to 26 from 26.50 (inc. headers for soldering).
    I expect to...
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    I am surprised you say that DigiKey is cheaper. I...

    I am surprised you say that DigiKey is cheaper. I just took a look and including header strips The PiHut are selling the 4.1 for 26.50. Digikey are charging 29.36 inc. headers and 27.06 without.
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    No I don't have a link but you could look at...

    No I don't have a link but you could look at Paul's posts. Just click on his name and select posts or whatever it is listed as.
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    That information came from Paul on this Forum....

    That information came from Paul on this Forum. The power needs to come up in a controlled manner. This is accomplished when powered by 5v but not 3.3v. Paul suggested having vbat supplied with...
  6. I'll bear that in mind.

    I'll bear that in mind.
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    Here is the code, below. I will put a snapshot of...

    Here is the code, below. I will put a snapshot of the results for T4.
    The resolution of my capture device is only 41.66666ns. So when you see pin to pin times doubling from 42ns to 83ns it is down...
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    Hi Duff, have you any comment upon the Snooze...

    Hi Duff, have you any comment upon the Snooze wake up times I have found.
    See here.
  9. No problem. I was hoping they would supply UK/EU...

    No problem. I was hoping they would supply UK/EU at a decent postage rate like OSH.
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    If you power teensy 4.0 from 3.3v only, then it...

    If you power teensy 4.0 from 3.3v only, then it is quite likely that it will NOT power up.
    Supplying VBAT with a backup battery may allow the Teensy to wake up when 3.3v used to power it.
  11. They are currently set up for US customers only....

    They are currently set up for US customers only. Bottom of his first post.
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    Does that mean there will be affordable postage...

    Does that mean there will be affordable postage to the UK as well? OSH only charge a $1 and put them in an envelope/jiffy bag.
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    Having looked through the code for the...

    Having looked through the code for the ElectronicsHub tutorial there in no reason why you could not change the ESP8255 for a HardWired Teensy ethernet system. Sending the email from Teensy would be...
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    I think using two computer boards is a bit over...

    I think using two computer boards is a bit over the top.
    Since the ESP8266 has the WiFi capability and the ability to read a temperature sensor, there is, unfortunately, no need for the Teensy.
    ...
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    Snooze Wake-up Recovery Times - Edited Added Teensy4 Sleep Data

    I have been looking at the time it takes for Snooze to wake-up on various Teensy. (What's the plural of Teensy?).

    All this started when I found that I could NOT use a Teensy4 in a project because...
  16. If you are worried about power failure why not...

    If you are worried about power failure why not use one of these with an 18650 battery to power your teensy. Keep it (the battery) powered all the time and should the power fail, with a 3000mAH...
  17. Did you also check them outputting low? They...

    Did you also check them outputting low? They could be stuck high.
  18. If you have used the AS5047 with 5v with the...

    If you have used the AS5047 with 5v with the teensy 4 , then because the o/p pins of the AS5047 to the teensy would have a logic 1 level of 4.5v (see AS5047 datasheet) it is highly likely that those...
  19. I can recommend this...

    I can recommend this. Stupidly low price for what it does. It can be found under various other names in the web.

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    You might find this...

    You might find this page useful especially with respect to AD reference.
  21. Post your code and someone might be able to help.

    Post your code and someone might be able to help.
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    Error when shutting Windows 10

    Hi,

    I get the error shown below when closing windows without first explicitly closing Teensy window.

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    Adding something about the Snooze Library would...

    Adding something about the Snooze Library would be good
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    Is this going to be documented somewhere. If not...

    Is this going to be documented somewhere. If not it is likely to go unknown by anybody who have not seen this thread or maybe has forgotten about it.
  25. Thanks PaulS pin 6 works fine waking it up. It's...

    Thanks PaulS pin 6 works fine waking it up. It's unfortunate Duffs documentation still incudes pin 7.
    Thanks analog&RFmodels: Setting pin 17 as you suggested reduced the current draw to 88ua with...
  26. It's not the same issue. It IS the same general...

    It's not the same issue. It IS the same general subject.
    If I knew what each snooze state did to the teensy I would be better able to determine which would be best to use for my projects.
    For...
  27. 0.33ma in Hibernate from a 5v supply, 0.46ma when...

    0.33ma in Hibernate from a 5v supply, 0.46ma when supplied with 3.1v.
    I don't understand it either!
  28. I was using pin 4 as a wake up, I see that that...

    I was using pin 4 as a wake up, I see that that pin is not supported.
    I don't know if that affects the current draw. I will test it out.
    EDIT
    Now seeing 1.9ms and it sill does not wake up from a...
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    Also see...

    Also see https://forum.pjrc.com/threads/64460-LC-draws-more-current-than-3-1-in-Snooze-modes-does-not-work-on-digital
  30. I found that I had been using LOW as in below ...

    I found that I had been using LOW as in below

    snoozeDigital.pinMode(PIN_AX, INPUT_PULLUP, LOW);

    instead of FALLING as below.

    snoozeDigital.pinMode(PIN_AX, INPUT_PULLUP, FALLING);
    ...
  31. Any one know?

    Any one know?
  32. LC draws more current than 3.1 in Snooze modes, does not work on digital

    Following on from my trials with the snooze library, I have just bought some LCs to see if they would of any use.
    Unfortunately I found that wakeup on digital pin (FALLING) does not work on the LC....
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    Problem with Snooze Library?

    Hi,

    I have been trying to use the Snooze library with Teensy4 with timer and digitalpin wake up.
    I am finding that Teensy4 takes 20ms to wake up and sometimes report wakeup coming from event id...
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    I am using these...

    I am using these https://www.amazon.co.uk/Ebyte-E32-868T20D-Wireless-Transceiver-Transmitter/dp/B07QXQ7PXJ.
    Fantastic value at 6. 433Mhz are available at only 3...
  35. Tried digitalWrite(13,HIGH); without the if...

    Tried
    digitalWrite(13,HIGH); without the
    if (AuxHigh()) d... and it made <0.2ms difference.
    I changed the Teensy 4.0 for a Teensy 3.2 and this solved the problem. I have put a Logic Analyser...
  36. That's a thought, though I don't think it will...

    That's a thought, though I don't think it will account for the long delay.
    I will have a look tomorrow. Thanks for looking.
    I tried snooze without SerialUsb and it just went haywire.
    I had set it...
  37. Oops forgot to say, I am using a Teensy 4.0

    Oops forgot to say, I am using a Teensy 4.0
  38. You can enlarge the Logic Analyser trace by...

    You can enlarge the Logic Analyser trace by double clicking on it.
    When the UART Radio detects an incoming radio message it puts AUX low. This is the trigger to wake Teensy.
    5ms after AUX goes low...
  39. Having problems with time it takes Snooze to wake up on digital pin

    I am trying to use the Snooze utility, waking up from DeepSleep on a pin going LOW and on a timer.
    The pin going LOW indicates that there is a message being collected by UART radio.
    The pin (AUX)...
  40. What do the various snooze states affect on Teensy?

    Does Snooze DeepSleep affect Serial and Serial1..SerialX?
  41. These work really well. Here is a...

    These work really well. Here is a description/review https://www.youtube.com/watch?v=joAkJ9QA2bw...
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    I was trying o use the teensy4 version with the...

    I was trying o use the teensy4 version with the 4.1.
    The program kept crashing and rebooting the teensy.
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    Doh!! Any idea how long? Sorry but I was hoping...

    Doh!!
    Any idea how long? Sorry but I was hoping to use it in a project with 4.1
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    Does Snooze work with teensy 4.1

    Does Snooze work with teensy 4.1?
  45. Yes but why would you want to constantly update...

    Yes but why would you want to constantly update the time every time you go round "loop". If in "setup" you check that Serial is up with something like


    Serial.begin(9600);
    while (...
  46. [QUOTE=bossredman;257707]I've been adding a RTC...

    [QUOTE=bossredman;257707]I've been adding a RTC to my Temp Sensor project.

    I pulled code from the various availbe example sketches.

    I have the following in the main Void Loop()



    if...
  47. You need to send your command to Nextion as...

    You need to send your command to Nextion as below:-
    Serial1.print( "draw 10,10,70,70,GREEN");
    Serial1.write( 0xff );
    Serial1.write( 0xff );
    Serial1.write( 0xff );

    You need to read the Nextion...
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    What does this code do/mean.....

    Hi,

    I hope someone can help, I am modifying an EByte WiFi-Uart library for Teensy and it includes various forms of this sort of code "Configuration configuration = *(Configuration*) c.data;".
    Can...
  49. What about these - TXB0104 Bi-Directional Level...

    What about these - TXB0104 Bi-Directional Level Shifter? Would they be\ any good on ttl rs232?
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    What does Tools: Optimize : Debug do?

    What does Tools: Optimize : Debug do?
    I can't find it documented anywhere!
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