We discovered that the outputs are turned on when touchberry 7 power supply is switched on.
This is undesirable because upon power on, our touchberry output activates a relay, with bad consequences, whereas the output should only be turned on when our program requires it.
At boot up, all I/Os are default inputs, so it isn't normal for all outputs turning on in Touchberry 7 when power is supplied to it.
What should I check to debug this issue?