Compiling, uploading or resetting outputs HIGH

[3emgoso]

Hello,

While I compile and upload the sketch, all the arduino pins are set to High, in my case to 3.3V because I am working with an Arduino Due board. The same when I press the reset button, at that moment it goes to 3.3V. How can I do so that in these actions the outputs of the pins (DAC1, pin 9) that interest me are kept in LOW, ie 0V?

Thank you very much,

[alto777]

I/O pins are inputs after rebooting or reset.

See

startup pin voltage

HTH

a7

[jremington]

@3emgoso

How can I do so that in these actions the outputs of the pins (DAC1, pin 9) that interest me are kept in LOW, ie 0V?

The pins should be floating after reset, and before your program has set them to OUTPUT. To prevent stray static charges from giving a reading of HIGH, connect the pin to ground via a 10K resistor.

[J-M-L]

Please don't double post even in another language

Compilando, subiendo o reseteando salidas HIGH

Hola, Mientras compilo y subo el sketch, todas los pines de arduino están en High, en mi caso a 3.3V porque estoy trabajando con una placa Arduino Due. Lo mismo cuando pulso el boton reset, en ese instante se va a 3.3V. ¿Cómo puedo hacer para que en estas acciones la salidas de los pines (DAC1, pin 9) que me interesan se mantengan en LOW, es decir en 0V? Muchas gracias,

➜ do yourself a favour and please read How to get the best out of this forum and modify your post accordingly (including code tags and necessary documentation for your ask).

[PerryBebbington]

@3emgoso

Compilando, subiendo o reseteando salidas HIGH

Hola, Mientras compilo y subo el sketch, todas los pines de arduino están en High, en mi caso a 3.3V porque estoy trabajando con una placa Arduino Due. Lo mismo cuando pulso el boton reset, en ese instante se va a 3.3V. ¿Cómo puedo hacer para que en estas acciones la salidas de los pines (DAC1, pin 9) que me interesan se mantengan en LOW, es decir en 0V? Muchas gracias,

Your other topic on the same subject locked.

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