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Type: Posts; User: KrisKasprzak

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  1. Replies
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    I use the CR2032 and all you need to do is solder...

    I use the CR2032 and all you need to do is solder the crystal and add some code.

    Here's the code I use

    // global location
    #include <TimeLib.h> // teensy time library...
  2. Maybe so, but I can't see to program the esp or...

    Maybe so, but I can't see to program the esp or monitor serial activity if wires are connected to Rx and Tx.
  3. OK i have a plan and a prototype is working....

    OK i have a plan and a prototype is working. Refresher as to what i'm trying to do:

    1. remote telemetry on a race car sends performance data to the pit where performance data is displayed on an...
  4. I can try hardware serial unfortunately Serial1...

    I can try hardware serial unfortunately Serial1 is for USB if i recall. I've got USB connected so i'm forced to use Sofwareserial.

    However.

    The suggestion to use easyTransfer lib works. I'm...
  5. I will try the easytransfer library tomorrow

    I will try the easytransfer library tomorrow
  6. tried this as well. #define PACKED_STRUCT ...

    tried this as well.

    #define PACKED_STRUCT struct __attribute__((packed))
    struct Test {
    uint16_t Data1;
    uint16_t Data2;
    uint16_t Data3;
    } ;

    Test MyData
  7. Well still no go... 1. i've tried every baud...

    Well still no go...

    1. i've tried every baud in the book the faster the less corrupt
    2. I did try sizeof(uint16_t) on both MCU, both returned 2 bytes
    3. I did try sizeof(MyData) on both MCU,...
  8. Yet another issue I'm struggling with sending data to ESP8266 via serial line

    Still fighting with these ESP units. I'm trying to send data from a teensy 3.2 to an ESP8266. From the teensy if I Serial3.Println("Teensy is better that ESP"); all is well. if i send a struct, data...
  9. Thanks for the reply. I've spent probably 50...

    Thanks for the reply. I've spent probably 50 hours trying to find any example that creates an access point that allows multiple clients and that can update just the data on a page using these cheap...
  10. Super stuck with ESP-01 serial module and I'm desperate for help.

    I’m trying to use my Teensy 3.2 and an ESP-01 (which is a small serial-based device) to create an access point (which I’ll call a web server) to serve a web page to various devices such as phones and...
  11. I've never used that display, but i'm looking...

    I've never used that display, but i'm looking into Nextion's. I currently use 2.8" TFT (ILI9341) and have had great success. I recently purchased a 3.5" SPI had have it working as well. But these may...
  12. How to connect > 1 client to a serverusing an Adafruit WINC1500?

    All,

    i have a WINC1500 wifi module connected to my Teensy 3.2 and using the libraries at https://github.com/arduino-libraries/WiFi101

    After adding the line in setup(), WiFi.setPins(8, 7, 4, 2);...
  13. Replies
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    Library for EBYTE transceivers

    If you need to wirelessly communicate between different MCU's have a look at EBYTE transceivers. I've used these on several projects with great success.

    I also wrote a library to make usage and...
  14. Got it running. had to reinstall arduino and...

    Got it running. had to reinstall arduino and teensyduino.
  15. I'm pretty sure it's where libs are installed...

    I'm pretty sure it's where libs are installed running the example analogRead

    Arduino: 1.8.9 (Mac OS X), TD: 1.47, Board: "Teensy 3.2 / 3.1, Serial, 72 MHz, Faster, US English"
    ...
  16. Need help getting code to run on a mac

    All,

    i'm helping a friend get an ino file running on a mac and i'm not a mac user. here's the compile error.

    Anyone know what I need to do?



    Arduino: 1.8.9 (Mac OS X), TD: 1.47, Board:...
  17. I have a nearly identical system setup in my...

    I have a nearly identical system setup in my house. A "base" monitors several "stations" for things like if my garage door is open, outside temp, etc. I use E44-TTL-100 modules. Each station has it's...
  18. If your Touch and Display SPI can get shared, I...

    If your Touch and Display SPI can get shared, I recommend this lib--always works for me
    https://github.com/PaulStoffregen/XPT2046_Touchscreen

    If your SPI can NOT be shared, this is the lib I use...
  19. problems I see 1) your chip select for the...

    problems I see

    1) your chip select for the display is the same for the touch, these need to be on different pins
    2) shared SPI buss--this may cause a problem depending on the display. I use many...
  20. @kurtE, yea...i had a heck of a time trying to...

    @kurtE, yea...i had a heck of a time trying to determine when to update, and i could only get compairing to the old value to be reliable. Saving the old val, i can check each character. My challenge...
  21. I suffer the same and write a "FlickerFreePrint"...

    I suffer the same and write a "FlickerFreePrint" library. Basically the lib only draws a filled rectangle over changed text--basically like the suggestion above. In my tests it works great.
    ...
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    you can also adjust kerning and such in the font...

    you can also adjust kerning and such in the font editor. Use the move origin and height width and offsets for that.
  23. Replies
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    It will create 20-point only if you want multiple...

    It will create 20-point only if you want multiple you'll have to run that tool every single time
  24. I need to update my gage library--yours look like...

    I need to update my gage library--yours look like a million times better that mine!
  25. Replies
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    That is really cool!

    That is really cool!
  26. rats..... My 2.8" TFT that works with the...

    rats.....

    My 2.8" TFT that works with the XPT2048_Touchscreen library has HR2046 written on the controller chip
    My 3.5" TFT that does not work with the XPT2048_Touchscreen library has XPT2046...
  27. I tried disconnecting my miso wire from the...

    I tried disconnecting my miso wire from the teensy to the display, still no touch capability on the 3.5". I tried adding pullups to MISO and MOSI for the touch no help.

    Any further assistance...
  28. 3.5" display using ILI9488 will not work with XPT2048_Touchscreen

    All,

    I just bought a large 3.5" display that works fine with the ILI9488_t3 library (using my Teensy 3.2). I'm trying to get it working with the XPT2048_Touchscreen library, the display works but...
  29. Replies
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    I'm now using EasyEDA for all my projects. I just...

    I'm now using EasyEDA for all my projects. I just recently designed a few boards and found the software is fairly easy to use (easier the more I use) but the library (included and user supplied) is...
  30. Replies
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    Interesting offering, but I for sure will stick...

    Interesting offering, but I for sure will stick with PJRC
  31. stuck writing a class that uses templates

    I'm trying to expand my flicker free print function to a class where I can pass in an unknown display object. I've used templates in the past and feel it may work

    I'm stuck trying to figure out...
  32. Paul, Your fix worked--i'm slowly starting to...

    Paul,

    Your fix worked--i'm slowly starting to understand char in C--not real easy or intuitive, I'd love to know how people wrote word processors in C.

    At any rate, I'll bet you are dying to...
  33. nope. fails to compile can someone edit the...

    nope. fails to compile

    can someone edit the code above and not provide a one-liner? snippets are not helping
  34. sorry guys I don't understand what you are saying...

    sorry guys I don't understand what you are saying I should do.

    strncpy(New, Old); fails to compile

    Can some one edit this code directly?
  35. strcpy(New, Old); fails to compile

    strcpy(New, Old); fails to compile
  36. Super Easy Christmas Eve Challenge (strcpy)

    I have a an array of strings and I want top copy to another array, but I can't get strcpy to work. No compile errors, it just wont run

    Anyone lend me a hand?



    const char *Old[10] = {"Red",...
  37. @jonr Any pointers as to what I do with that file?

    @jonr Any pointers as to what I do with that file?
  38. compile options affects snprintf()--and in a bad way

    All,

    I wrote a very helpful library that will let you print numbers but mask only the digits that have changed. My need was to update a number and not have the flicker problem with painting a box...
  39. Will this help? ...

    Will this help?

    https://www.youtube.com/watch?v=U5hOU-xxQgk


    OPPS I see this link was already posted.
  40. Need some assistance here.... I'm building a...

    Need some assistance here....

    I'm building a CNC drill press to automatically position a table under the drill bit so I can drill PCB's automatically and accurately. I have 3 steppers X-Y-Z. All...
  41. Replies
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    Teensy 4.0 and ILI9341_t3 libs

    Will the ILI9341_t3 libraries work with the new Teensy 4.0? I've not ordered my 4.0 yet, but I'm doing some pre-planning for it's arrival.
  42. Replies
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    Spook: I'll have to commend you once again!. This...

    Spook: I'll have to commend you once again!. This font editor totally rocks! I downloaded a free "seven segment" ttf font and used it to create a 120 point font for my 2.8" tft. Since i only need...
  43. Replies
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    While my requests are small, here goes--please...

    While my requests are small, here goes--please continue to keep this class of units small (non T3.6 foot print)

    1. 100% of my projects utilize a DIP socket for teensy replacement so i'd like to...
  44. great job on these games!

    great job on these games!
  45. Replies
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    PS, i also write a slider lib for the LI9341_t3....

    PS, i also write a slider lib for the LI9341_t3.

    https://www.youtube.com/watch?v=HE2Y7moK56A
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    I've used the Adafruit_hx8357 libs as well, but...

    I've used the Adafruit_hx8357 libs as well, but the ILI9341_t3 just feels faster, I never did tests though. Agree the adafruit is pricey and i'm looking for bigger displays (4" is a goal). I've seen...
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    Not sure if this will work on a t4, but works on...

    Not sure if this will work on a t4, but works on a teensy 3.2
    // in globals declaration section
    #define CPU_RESTART_ADDR (uint32_t *)0xE000ED0C
    #define CPU_RESTART_VAL 0x5FA0004
    #define...
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    Im not sure what screen you have, but I use a...

    Im not sure what screen you have, but I use a teensy 3.2 and Adafruit 3.5" which are 480 x 320. Oddly I use the ILI9341_t3 libs (not sure if the will work with T4) and the libs work fine, I have full...
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    I just tried that, nothing useful is reported,...

    I just tried that, nothing useful is reported, only what's being compiled.
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    Description of compile options

    Does anyone have a description and suggested usage for the optimize options, such as:

    Fast, Faster, Fastest
    LTO
    Pure Code
    Debug
    Smallest code

    etc.
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