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    Strange behaviour MAC/PC - Teensy 4.0

    Hi guys, I have a really strange behaviour.

    I have a little program that use a MCP23S17 to read some selector everything has worked well so far but since yesterday I have experienced a very...
  2. Ok, now it's working! :-) Thank you very much...

    Ok, now it's working! :-)

    Thank you very much for your help.
  3. MicroE-506 with AudioControlWM8731master Problem

    Hi guys, i'm trying to setup my new buy. MicroE-506 With Teensy 4.0 (or Teensy 3.2).
    I'm having some problem with easy examples so probably there's something that I dont understand.

    I'm trying to...
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    Ok thanks, I really appreciate your response. I...

    Ok thanks, I really appreciate your response.
    I didn't know nothing about bootloader. So now I know what's the point.

    Andrea
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    Redesign Teensy PCB on my own PCB

    Hello guys,
    I'm working on a prototype of a project with Teensy 4.0.

    If the prototype is satisfactory we may decide to try making a version for the market.
    Having said that, I would like to...
  6. Thank you guys, your advices are really...

    Thank you guys, your advices are really interesting.

    After a couple of day of study I decide to move to a more complete c++ serial lib that use friendly name.
    Similar to teensySharp.

    Thank
  7. Serial Port teensy Identification/Recognize

    Hi,
    i'm working on a project using teensy3.2 and teensy4.0 that comminicate with a PC, i'm trying with Windows 10.

    Everything work fine but I would to improve the Serial port identification. ...
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    Display refresh Latency

    Hi,
    i'm working with Teensy 4.0 connected via USB to my PC. I'm newbie in firmware develop, sorry if it's a stupid question.

    PC and Teensy are communicating correctly and the speed of...
  9. Yeah correct. Updated code: ...

    Yeah correct.

    Updated code:

    //Initialization of MCP
    mcp23s17 mcp_selector(10,0x21);


    void setup() {
  10. You make my day!! Yeah the problem was about...

    You make my day!!

    Yeah the problem was about startup speed i suppose.
    In fact i have used the reset pin (LOW and HIGH) in the setup method before the MCP init.

    setup(){
    delay(3000);...
  11. Sorry Paul, you right!! I think the problem...

    Sorry Paul, you right!!

    I think the problem is about MCP23S17 that is connected via SPI.
    I'm using this lib:
    https://github.com/sumotoy/gpio_expander
    in particular: mcp23.17.h

    OLED via i2c...
  12. Program correctly works only after upload or reboot

    Hi, i'm working on Teensy3.2. I'm newbie.

    Problem: it doesnt correctly work when I connect, for first time, my teensy to USB.
    But it correctly works only if I upload the program.


    In...
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    Thank you very much. I'll follow the...

    Thank you very much.

    I'll follow the instruction for a better SPI design.

    Thx
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    How to connect multiple SPI Slave Device

    Hi guys, i'm newbie, so i'm trying to learn.

    I have Teensy 3.2 and I'd try to connect 8 of this chip stp16dps05 via SPI (need to manage a ledRing)...
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    Thank you very much .. i will try to find out...

    Thank you very much .. i will try to find out some information about MCP4726.
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    Thank you very much. I know O_C module it's my...

    Thank you very much.
    I know O_C module it's my start point inspiration. But i'm new about firmware (not software, Java ecc ecc) and the O_C code source is not clear at all for me. So i tried to...
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    Teensy - Voltage Control. Which DAC chip?

    Hi guys, I'm new in teensy environment.

    I'm trying to create a Voltage Control with my Teensy.
    I would to creare a DIGITAL control (teensy) in order to control an Analog Circuit .. IE a Synth...
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