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    Bump, Sorry guys I did my best to search but...

    Bump,

    Sorry guys I did my best to search but what pin states have the lowest sleep current?

    I know in the Atmel AVR world there is a big difference:
    All pins as outputs, and LOW: 0.35 ľA
    All...
  2. I find the EEVblog forum is really good for...

    I find the EEVblog forum is really good for questions like this. Plenty of knowledgeable people ready to help. Do a search as it probably has been asked already.

    Also out of curiosity was they...
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    Yes, all the digital pins can do internal pullup...

    Yes, all the digital pins can do internal pullup or pulldown.

    If you are using the Serial interface(s) the function Serial.Begin() will override the pin direction though. No need to specify pin...
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    Can you post your schmatic? To clarify what...

    Can you post your schmatic?

    To clarify what Paul is asking.
    The MKL02/ MKL04 chips (Only from PJRC) hold a custom bootloader that gets put into the main processor whenever you push the button....
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    Some notes for SPI flash based on my experience:...

    Some notes for SPI flash based on my experience:
    Maximum size I have seen is 128Mbit. This is 16Mbytes, max.
    The most common form factor is 8-pad DFN/QFN. They can be hard to solder but not...
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    NEVERMIND! Apparently my scope just wonky. Maybe...

    NEVERMIND! Apparently my scope just wonky. Maybe time for a new one...

    Have a nice day!
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    Teensy LC not sleeping with SPI Flash

    Ok I have lost about 6 hours of hair so i need to consult some outside help..

    I am using a Teensy LC to do basic datalogging but i cant get the LC to sleep properly. The problem seems to be the...
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    Ah my mistake. I didn't see that the Neo M8N had...

    Ah my mistake. I didn't see that the Neo M8N had flash. I'm used to working with the Max and Eva series. Space and power savings on 1.8v!
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    Gennady1990 did you figure this out? Just so you...

    Gennady1990 did you figure this out? Just so you know The ublox chips dont't have any permanent memory unless you attached a QSPI flash chip. The Flash chip can store configurations, firmware, and...
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    1.8V support for Teensy LC and 3.2

    I have successfully converted a few Teensy 3.2 and LC to work on 1.8v.
    The VOUT33 and VDD rails need to be separated then you can feed 1.8v to the "3.3v". Instant power savings for those of use...
  11. Couple pointers on your project. The MCP73831...

    Couple pointers on your project.
    The MCP73831 will work but your plan has a big risk of under volting the battery which is bad for lion.
    The Teensy 3.2 and LC both have integrated 3.3v regulators...
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    OK. Thanks for the quick response Paul. I am...

    OK. Thanks for the quick response Paul.

    I am having trouble communicating with a specific modem on a built pcb and i may have my TX/RX backwards. I was trying to test with software real quick.
    ...
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    OH. So no software serial on LC? Bummer.

    OH. So no software serial on LC? Bummer.
  14. Thread: Teensy LC

    by jacky4566
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    nefarious if you need more memory what about an...

    nefarious if you need more memory what about an SPI flash chip? They can be had under $1. Also what are you storing that is so big!? Ive used the LC for a few projects and my biggest was 47K (74%)
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    You totally can but are you really saving much...

    You totally can but are you really saving much space? Surely the size of a pin header (even 2x6 @ 1mm pitch) is going to be bigger than the MKL02 chip?

    You could also externalize the USB and some...
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    SoftwareSerial broken for Teensy LC

    Seems there is a problem with software serial on the Teensy LC.

    When i run the following code my IC just freezes up. Any tips here? I am using pins 1 and 0 to determine if i wired my device...
  17. Another update for anyone reading these. There...

    Another update for anyone reading these.

    There seems to be a small glitch with TMcGahee code and maybe the LC chip. The RTC wont tick unless the RTC_TSR value is set to a none zero value. I solved...
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    Just wanted to bump this thread if there was any...

    Just wanted to bump this thread if there was any development? I'm also developing an ultra low power solution based on Teensy. 3.2
    Looking at the data sheet I found the following diagram which leads...
  19. Bumping this thread to get some more...

    Bumping this thread to get some more clarification and discussion. My personal goal is an LC based, long term data logger, so power efficiency is the focus at the expense of RTC accuracy (GPS will...
  20. Well not without a generous donation right? :p ...

    Well not without a generous donation right? :p

    Ok ill give it a shot. Ideally I would hope it works exactly the same since i want to prototype with LQFP and production will be QFN.

    Excellent...
  21. Im going to bump this thread instead of making a...

    Im going to bump this thread instead of making a new one.

    Can the MKL26Z64VLH4 be used in place of the QFN version? And there will be no issue with the MKL04Z32 Bootloader?
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    Ok thanks MuShoo.

    Ok thanks MuShoo.
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    Ok. I usually go by once per week. I dont think...

    Ok. I usually go by once per week. I dont think Paul has a rule here yet.
    Yea i did see the thread from EK701 and the schematic has some numbers as well so i have most of the important stuff but i...
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    What is the bump policy here? If anyone has a...

    What is the bump policy here? If anyone has a part list i would really appreciate it.
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    Hi guys. For anyone interested im providing an...

    Hi guys. For anyone interested im providing an update.

    The kickstarter was unable to reach its goal. This was partly because of the cost but also my inability to market the device. So to address...
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    Sorry stevech if this sounds dumb but where in...

    Sorry stevech if this sounds dumb but where in the Digikey BOM manager can I find these lists?
    I'm not looking to make a new list of parts but I just want someones existing list where I don't have...
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    Don't forget that high level programming will...

    Don't forget that high level programming will involve more libraries. If you want small code size you need to program in assembly which is not feasible for everything except microwave ovens.
    So the...
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    Teensy 3.1 Parts List

    Would anyone who has completed a standalone Teensy 3.1 care to share their Bill of Materials?

    I would like to reduce any potential headaches with making a custom board.

    I am looking for...
  29. What are you drawing to the screen? Simple text...

    What are you drawing to the screen? Simple text and lines are drawn very quickly. Bitmaps can take a little longer. I would remove or reduce the microdelays in adafruits library because they were...
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    It doesn't seem like winusb is available as a...

    It doesn't seem like winusb is available as a standalone package however if you have the Windows Driver Kit there is a guide to make a driver package which could be supplied to users.
    ...
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    Yes, winusb is not out of the box, but Paul to...

    Yes, winusb is not out of the box, but Paul to get Winusb on older xp/vista all you need to do is install a windows update. WinUSB v1.9 (KB971286). I bet you could even package this update with...
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    No from my understanding Winusb allows more...

    No from my understanding Winusb allows more direct access to the hardware (teensy) from a PC. Instead of using a bulk transfer like an HID packet or a serial interface prone to dropping and...
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    Hi Paul, I think this article will answer most...

    Hi Paul, I think this article will answer most of your questions. I am by no means an winusb expert but its extra flexibility makes it like a usbHID on steroids. You can use winusb without a driver,...
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    SumoToy sounds like a really cool display. ...

    SumoToy sounds like a really cool display.

    Were you able to write any bitmaps to it? I would be cool to learn how fast that chip can write a bitmap.

    Also if you want to run your Teensy at 96mhz...
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    Pulling this back to the top. Paul to put in my...

    Pulling this back to the top. Paul to put in my 2c I would support the use of Winusb. I have a project in mind that needs alot of data.
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    Mixology. Volume device for gamers

    Hi guys.
    Just thought I would share what I have been working on.
    Its not complete yet but I hope to have the kickstarter page up by the end of the month.
    ...
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    Yea i just wish the Jitter was on the other end....

    Yea i just wish the Jitter was on the other end. Oh well. Suppose I can put in an offset/ calibration.
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    I am using the basic code found here:...

    I am using the basic code found here: https://www.pjrc.com/teensy/tutorial4.html
    at default resolution the range is 1 to 1023.
    at 8 bits resolution the lowest value is still 1.
    at 16 bits...
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    Bumping an old thread. I am having this problem...

    Bumping an old thread. I am having this problem as well. I can only read 1 to 1023. Analog pin tied to AGND or regular ground.
  40. OK! So for anyone that finds this thread I did...

    OK! So for anyone that finds this thread I did find a dirty workaround.
    Within the DigoleSerial.h I rewrote the shiftOut function.
    So I added these lines and replaced shiftOut with the new...
  41. Thanks for the quick reply Paul. So I have...

    Thanks for the quick reply Paul.
    So I have adjusted the clock speed however I still can not get any response from this LCD.
    Where would be the next place to look?
    In the Arduino code they use...
  42. SPI and Digole Display Clock divider problems.

    Hardware:

    Teensy 3.1
    Digole True Color OLED 96x64 http://www.digole.com/index.php?productID=882
    Wired as per defaults with SS on pin 10

    I am trying to get my Teensy to communicate with the...
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