Default Low/High on startup

[PizzaProgram]

I think it would make life easier for beginner {like me ;-) } if the firmatabuilder would "ask about" the default settings of output pins.

Temporary I'll try to use the method mentioned here: #firmata/arduino#166 (comment)
but it can have serious consequences if predefined to a different state as it should be when the board starts.

< OFF >
For example:
I'm building currently a 8+8 relay-board roller-shutter system.
Those 230V tube-motors are very strong and those heavy metallic things can basically cut off a child's head...
< /OFF >

[soundanalogous]

It's more complicated that that. The ability to enable reporting of individual digital pins needs to be added first, which is a big change from how Firmata has historically worked so it will not land until Firmata 3.0, which has no definite schedule.

[soundanalogous]

My advice is if you are controlling potentially dangerous equipment, is not to use Firmata, but to design a simple protocol that will meet your needs while giving you full control over the code running on your Arduino.

[PizzaProgram]

I understand.
The good news is: it seems the code works.

void setup()
{
# Uncomment following 2 lines, if you want to start the board at power-up on LOW or HIGH state
#  byte pin;
#  for (pin = 0; pin < TOTAL_PINS; pin++) {     digitalWrite(pin, HIGH);     }
...

I recommend to copy this few lines to :
StandardFirmata.ino (ca. at line 700+)

And firmatabuilder should have an extra checkbox to enable it too.

That would be already a HUGE help to us, beginners.

< OFF >
IMHO You can not prohibit people to use your code at automatisation systems.
Especially because Node-Red even recommends to use it, and there are some industrial systems done with it already.

My personal opinion is, that currently Firmata is more stable than any other "ad-hock" created serial service.
(Maybe Ardulink has still some chance to grow to IoT standard, but Firmata already IS one.)
< /OFF >

[PizzaProgram]

Is it possible to define a global variable (or activate any hidden feature) to:

force all pins to work in INVERTED mode?

Where LOW becomes HIGH in all cases, and the other way around. Also all output pins are initialized HIGH at the beginning instead of LOW.

Something like:

#define ENABLE_INVERT_MODE 

[pgrawehr]

No, there's currently no such option. However, the startup values are directly in the ino file and can easily be changed there.

[PizzaProgram]

Rather than waiting,
created a pull req. myself.
#162