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Type: Posts; User: MistrKernnunos

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  1. TCA 8418 freezing after input, i2c problem

    I am trying to make key matrix using TCA8418. So far I have managed to set the chip up, I am able to read, but whenever I press button, which is part of the matrix the chip freezes. The interupti is...
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    Thanks for the advices. Now it is working well,...

    Thanks for the advices. Now it is working well, bur I have different problem. the problem is that whenever I press a button that is in the key matrix the chip wont respond to any messeges. the...
  3. TCA 8418 sending NACK after pressing a button, I2C problem

    So, I am trying to make a keypad. I have managed to set sīthe chip up, but whenever I press a button and then try to read which button was pressed I recieve NACK on adress.

    #include <Wire.h>
    ...
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    Thanks for the advice. Now it is not hanging on...

    Thanks for the advice. Now it is not hanging on the endTransmission, but it is returning 2 and that means NACK on adress, but I am sure that the adress is right.
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    Yes, it finds the chip

    Yes, it finds the chip
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    I am using the same code, that I have posted...

    I am using the same code, that I have posted earlier. And there is a foto of the circuit and the chip that I am using is TCA 8418.
    16167
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    Hi, I resoldered the pins. Teensy can find the...

    Hi, I resoldered the pins. Teensy can find the chip and start a transmission, but it hangs when I end the transmission. Do you have any ideas what icould caus the hang?
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    Thanks for the ideas, the connection between the...

    Thanks for the ideas, the connection between the pins and teensy is good. The program suddenly started working I dont know what I have done, but now it works.

    However I have another problem. I am...
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    I2C problem

    Hi,
    I have a problem with I2C. I am running default Wire.h slave sender master reciever codes but the slave wont answer to master. and I am using 2K resistors.
    16152
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    I want to have a separate teensy with three usb...

    I want to have a separate teensy with three usb connectors one for regular usb and onther twos for i2c to connect it to other modules, they wont be far a way from each other. And I want on the...
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    Connecting two PCBs together

    Hi,
    currently I am working on a project in which I will have multiple modules. And I want to make my own teensy 3.2 on separate PCB with usb and i2C connection for connecting to the difference...
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