Any Arduino gurus here - Pls help?

[kombi-man]

if anyone here is an Arduino guru, please can you help me.. I'm not.

I have a working Arduino Micro board which has 32 buttons connected to it, and which works 100%. I need to add a little piece of code to the bottom of the existing "sketch" I think it's called, which forces a specific button to emulate pressing the "TAB" key, specifically.

I found this online. Bit if I load this, and then inspect it, it just give me the middle finger?

PS. I do NOT have a clue when it comes to programming or anything of this nature..

void setup() {
// make pin 2 an input and turn on the
// pullup resistor so it goes high unless
// connected to ground:
pinMode(2, INPUT_PULLUP);
Keyboard.begin();
}
void loop() {
//if the button is pressed
if(digitalRead(2)==LOW){
//Send an ASCII 'A',
Keyboard.write(65);
}
}

So, for my requirements, I understand we replace the '65' with '09' to replace the A with the TAB, but, also, on my wiring diagram of this switch box, I have an array of buttons wired across the pins, eg: A0 and 10, is the button I'd like this "code" above to work with. But, I can't even get the code to look right.

Please can you help?

regards

Alan

 

[km2]

Are you sure you're supposed to send 09 for Tab? That's the ASCII code for Tab, but you probably need the scan code. i.e. KEY_TAB or 179

https://www.arduino.cc/reference/en/language/functions/usb/keyboard/keyboardmodifiers/

 

[kombi-man]

Eish, I am not sure to be honest.. Lets wait if someone can give me the proper code to make this function.

 

[Gnome]

tab is '\t'
newline is '\n' in POSIX and "\r\n" on Windows

 

[gregmcc]

How is the hardware wired up to the Arduino. Can you post a link to the existing .ino file?

> pinMode(2, INPUT_PULLUP);

This will set data pin to a input and turn on the internl pullup resistor. (So if your push button does not have any pullup resistors you can use this)

>Keyboard.write(65);

What library are you using? This would write a 65 decimal somewhere. Depending on what keyboard routine does.

Update: Actually have a look here. You must be using a usb keyboard connected to the Arduino. You will need to use keyboard modifiers for special keys:

https://www.arduino.cc/en/Reference/KeyboardModifiers