Hello everyone,
I face a problem, I need your lights...
My mbed engages different 12V relays. For this, I use my digital outputs that control transistors.
When the output is zero, the relay is not activated. Ok.
The problem occurs at startup (when the card is powered).
It seems that the pins are not 0 when the card is powered (but before the program actually starts). Suddenly, the relay will operate briefly and then go off when the program runs. And normally, it should not engage at startup.
Do you understand my problem? Is there a way to get the pins to 0 by default at startup?
I have not encountered this problem before...
Thank you,
Simon
Hello everyone,
I face a problem, I need your lights... My mbed engages different 12V relays. For this, I use my digital outputs that control transistors. When the output is zero, the relay is not activated. Ok.
The problem occurs at startup (when the card is powered). It seems that the pins are not 0 when the card is powered (but before the program actually starts). Suddenly, the relay will operate briefly and then go off when the program runs. And normally, it should not engage at startup.
Do you understand my problem? Is there a way to get the pins to 0 by default at startup?
I have not encountered this problem before...
Thank you, Simon