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  1. So technically you say to refresh a small area...

    So technically you say to refresh a small area like an update on pwm signal/ temperature? And leave the rest out of the picture.

    Ok keep it in mind, it is reading the ad7124 with the hx8357 so...
  2. Solved! place the Data1.setTextColor to the...

    Solved!

    place the Data1.setTextColor to the beginning.
  3. prevent flickering by accessing ad7124 and hx8357 after each other

    hello Tinkeres.

    by using the flicker free library the flashing of the display goes away. however how do I prevent flickering if two programs are run after each other in the void loop?

    ad7124...
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    thanks. that solved the problem. i needed also a...

    thanks. that solved the problem. i needed also a 5V for the USB part. ok! many thanks! now I can combineit with the CN0391! thanks!
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    Hi Mark, thanks for the fast reply, The...

    Hi Mark, thanks for the fast reply,

    The hx8357 with the featherwing 3.5 inch is being used.

    I tried also the HX8357 library from adafruit.
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    problems HX8357

    Hi currently I would like to use the teensy3.6 with the HX8357_t3 featherwing 3.5 inch, and started reading on the forum here.

    so I tried:


    changing the DC, and CS as proposed by one of the...
  7. ok connected to this large library with all its...

    ok connected to this large library with all its functions is given here:

    https://github.com/analogdevicesinc/arduino/tree/master/Arduino%20Uno%20R3/examples/CN0391_examples

    For my...
  8. something like this, but I have a feeling that...

    something like this, but I have a feeling that the code from theCN0391 doesnt want to cooperate with the TFT.
    I tried switching the MOSI,MISO Pins from the tft.

    ok nevermind up to next week.

    ...
  9. Hi Kurt, a Ok ill set both CS(TFT,CN0391)...

    Hi Kurt,

    a Ok ill set both CS(TFT,CN0391) pins to the HIGH in the Init, that is something I have probably a misunderstanding in. for each time accessing the init in void setup (pseudo code)
    ...
  10. cn0391 update

    ok, so I tested it with a teensy3.6 the AD7124 Full Test Continious program works, IOREF 3.3V external (needed!)

    Output Serial Monitor:

    `AD7124 Full Test


    Setting up 4 channels with 4setup...
  11. Pictures for the cn0391 wiring and measurement

    Pictures for the cn0391 wiring and measurement
  12. Hi Kurt, Thanks for the fast reply. Excellent...

    Hi Kurt,

    Thanks for the fast reply. Excellent questions!

    1 https://www.analog.com/en/design-center/reference-designs/circuits-from-the-lab/cn0391.html#rd-overview
    Has 3.3V input, and for the...
  13. SPI CN0391 question reflection on the MOSI, MISO line=?

    Dear tinkeres,

    I have a problem of understanding of the following CN0391 evaluation board. I have it currently hooked up to the Teensy3.6
    and I dont get a feedback from the AD7124 on the...
  14. guidance needed with CN0391 Thermocouple, and TFT over SPI to Teensy4.1

    Hello people of the PJRC,

    I am currently building a horseshoe electromagnet with glycol cooling of around 800W. 1Tesla goal 1.5Tesla.
    i use 2 peltiers motor and an electromagnet to drive and...
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    slap myself for the head, I assumed... big...

    slap myself for the head, I assumed... big mistake.

    Thanks!
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    akward, it bounces in the beginning then it stays...

    akward, it bounces in the beginning then it stays high and blips at the 7seconds to Zero. (if OFFtime is 7 seconds that is), and is repeated.

    ElapsedOFF and ElapsedON are global Elapsedmillis();...
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    int to unsigned long

    Hi guys I tried optimizing the code,
    And would like to get rid of delays.

    I use the encoder.h and put the encoder value into a If statement and switch off and on a led for a period of time. If...
  18. So I discovered where it goes wrong, its...

    So I discovered where it goes wrong,

    its exactly at the clk.update();
    i pasted a serial.print command before the if(clk.update())
    I think I require a break in polling the pushbutton and then...
  19. Problem with Encoder and Pushbutton Polling SSD1327 Screen and Countdowntimer

    Hello fellow designers,

    currently I am using a teensy3.2 with a 3pdt switch, 1 encremental encoder with a integrated pushbutton to navigate through a 3 window Menu. which works fine. I am using...
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    Question Timer3 use it as a countdown

    Hi guy,

    I am currently trying to build a countdownTimer that runs on the background with a teensy3.2
    further I am using the Encoder library, debounce Button, and u8g2 library for driving an Oled...
  21. Hi Paul, Thanks for the fast reply, I would...

    Hi Paul,

    Thanks for the fast reply, I would like to a signal that resembles like in the attached jpg.
    I had an enlightenment how to create such a signal on the teensy over the analogWrite out...
  22. arbitrary waveform funny signal squarewave unipolar to bipolar

    Hello designers,

    I had a few question referring to the Sample_And_Hold library/array.

    I would like to create the following unipolar and bipolar signal combined. the program should execute on...
  23. Many Many Thanks for the extensive reply, ill...

    Many Many Thanks for the extensive reply,

    ill have to sit back and read it thoroughly.
    keep it simple, Noted...

    the digitalpin trigger:)

    good point about the floats, it will definitely...
  24. how to calculate the time of one ADS1259 in continious mode with a teensy3.2

    Hello,

    recently we have developed a circuit board that requires 2 ADS1259 for reading sensors from 0....5V over SPI with a maximum frequency of 8MHz, and I am wondering if it is fast enough.
    ...
  25. Hey Guys, Big News! I stumbled on a...

    Hey Guys, Big News!

    I stumbled on a alternative to milling circuitboards. by using the DMP2800( 25um Resolution, and depending on the conductive Ink (copper or silver based you can create even...
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    do you mean under audio the SdCardTest.ino, or...

    do you mean under audio the SdCardTest.ino, or under the SD the DumpFile.ino, ReadWrite.ino? tx for your time

    I just dont get it what it requires for me to communicate with this ADC, Donziboy2...
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    something more like this you mean:) this is...

    something more like this you mean:) this is definitely more practical.
    http://polpla.cat/tutorials/SPI+DMA.html

    thanks for the hint.
    In total I require 4 pins

    ADC =Teensy3.2
    DIN ...
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    So I read the datasheet for the ADS8885 many...

    So I read the datasheet for the ADS8885 many times over and came to an conclusion how to solve it. Ill write it in pseudo code and write the signals to the SPI input of the ADS8885.

    ...
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    lets streamline this a bit, how do I start with...

    lets streamline this a bit, how do I start with the General SPI Code to write to the ADS8885, to set the resolution, sample speed, and do a conversion? any Ideas? I read the Nick Gammon Page on SPI,...
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    yeah I know I read the book grounds for...

    yeah I know I read the book grounds for Grounding. and made seperate boards with my cnc mill. keeping in mind that analog Ground is everywhere and properly bypassed with caps. the refs I use are the...
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    ads8885, ADS132A02, ADS1252 question

    Hello guys,

    for my work and personal use I developed a certain interest in adc's. I know there are some on the market that are compatible with the Arduino environment and can be accessed with SPI....
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    I have heared that before:), yes I took a step...

    I have heared that before:),
    yes I took a step back and added another condition in the if statement behind the Voltage level, millis-previousMillis>Interval
    which did the trick. it runs smoothly...
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    Hi KurtE, Tx for the library, didnt know...

    Hi KurtE,

    Tx for the library, didnt know that.
    ok I stopped the blinking but the background doesnt come along, ill install it tomorrow.


    What I am trying to do is the following each...
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    ILI9341 Blink TFT teensy3.2 help

    Hi I am having a problem with the following software syntax.

    What I am trying to do:

    read in voltage divider Values 0...4096 from a function generator.(0...10V) by using a simple voltage...
  35. hi Kristen could you explain?

    hi Kristen could you explain?
  36. Thanks Paul for your time and enlightening this. ...

    Thanks Paul for your time and enlightening this.

    Ill try and have a look at it and see if the program has a difference on the ADC and DAC.
  37. works

    first, yes I had to uncomment that in.

    if you do a simple DAC sinewave or say to a simple DAC INO test file to tests it ouput / go to this value and stay there, it does this perfectly.

    however...
  38. Hi rcarr, the program in short: if the buttons...

    Hi rcarr,

    the program in short: if the buttons A3, A4 are not pressed, do the loop forever.
    The loop: yellow 0, red 1, Phase 2 Blue 2, Black screen, wait for press buttons A3,A4
    if Pressed set...
  39. Hi rcarr, I changed this, attached the code,...

    Hi rcarr,

    I changed this, attached the code, and discovered that the ADC and DAC are somehow connected and is not exiting the loop, is there a way to prevent the ADC Meddling with the DAC? from...
  40. Problem with a software SPI, teensy interface BNC DAC pin 14

    Hello

    I am trying to solve a software bug in my coding of the teensy3.2.

    first hunch,
    can I use the DAC on pin 14 simultaniously with the ADC analogRead A3, A4? or are they not seperated? ...
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    ill check that, i have the board at home at the...

    ill check that, i have the board at home at the moment, now I know what you mean with formatting:)
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    drawpixel maybe?

    The thing is that the code for drawing the background is a function that is being called from the library tft.
    on top of that function, is a called function that draws, scales a zero over the...
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    thanks for the patience, I am currently using a...

    thanks for the patience,
    I am currently using a teensy3.2
    what I try to do is having a Yellow Screen with a white Zero in the center.
    which should stay there during a change in voltage.
    ...
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    no problem, what I try to do is having a...

    no problem,

    what I try to do is having a Yellow Screen with a white Zero in the center.
    which should stay there during a change in voltage.

    After a voltage change lets say a value of 512 the...
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    using ILI9431 without the blinking

    for a science project and to test people if they can recognize vibrations with the fingertips.
    I am trying to program a ILI9431 2.4inch tft display without the blinking.

    Problem: What i am...
  46. Hey Kurt, thanks for the reply, it allways...

    Hey Kurt,

    thanks for the reply, it allways depends. Ill try the code from the LTC2440 from Linear Technology in combination with the Saint smart GPU2 on SPI.
    They offer a complete solution on...
  47. Tx for the replies, Kurte and Michel Meissner, ...

    Tx for the replies, Kurte and Michel Meissner,

    that helped a lot in getting rid of uncertainties,
    The Synchronizing the Busses sound pretty complicated...

    What I could not figure out from...
  48. Would It be possible to use one bus and multiple...

    Would It be possible to use one bus and multiple Chip Selects?

    CS_TFT =on pin 6;
    MOSI_ALL =on pin 7;
    MISO_ALL =on pin 8;
    CS_LTC2440=on pin 9;
    CS_AD5680 =on pin 10;
    TFT_DC_ =on...
  49. PIN Layout for the Teensy3.6 SPI Busses 0,1,2 can It be done like this?

    Hello I was wondering, Pondering and are in need of some experience with the SPI busses, and Pin Layout teensy3.6.


    I am thinking how to combine various SPI busses to use the LTC2440, and the...
  50. question: TFT vs LCD Teensy3.2, Paul Stoffregen Library

    Hello fellow builders,

    I am new here, so bare/bear with me.

    I am currently building a temperature sensor with a readout over the teensy3.2 and would like to use a tft ILI9341 by sending a...
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