Apr 2, 2012 · One boolean variable per pin would do it, or you could use an array and write a wrapper around digitalRead () to filter your inputs according to the "ignore array".

Aug 22, 2013 · What I need to do is once the motion is detected I want the program to ignore the values from the sensor for a certain amount of time, to prevent the images changing rapidly. Im just struggling with the code on this one!

Dec 6, 2022 · I am currently working on a project which gets data from the JSN SRO4T sensor and the sensor shows a wrong value (fromSensor.lvl) as a garbage value. So the value range should be 0-100. I need to avoid the value '121' that comes from …

Since the offsets in each loop are consistent, it should work to do something like: for ( int i = 0; i < 31; i++) { Setcolor (...); If ( i-2% 4 == 0) { i += 8; } } This will skip the offset for your example at least. For other start and end points of the loop, you'll have to check how the modulus works out, but the idea remains the same.

If you want to say ignore a certain character type, for example commas, or any character for that matter, you can pass an “ignore” value as a second parameter to parseInt() like so: //serial receive buffer--> "3,142" int dataIn = Serial.parseInt(SKIP_NONE, ','); // dataIn now holds 3142

Apr 5, 2015 · Is it possible to have the Arduino ignore serial.print and serial.println throughout my code, without turning it into a comment or placing every serial printing inside for example "if(debug == true)" statements?

Apr 9, 2017 · Save your state into a volatile global variable and print only if the state is being updated. This is because the loop () function is called an infinite number of times. You have two options: Serial.begin(9600); pinMode(2, INPUT); if (Serial.avaliable() > 0) { if (digitalRead(2) == HIGH) Serial.print("Yes"); else { Serial.print("No");

Jun 28, 2023 · Values of type char are cast to int. Commonly, and in your case too, the char is by default signed. The values 0xAA and 0xAB have a set most significant bit, which commonly designates a negative value in two's complement .

If you're using gcc and want to disable the warning for selected code, you can use the #pragma compiler directive: For code you control, you may also use __attribute__((unused)) to instruct the compiler that specific variables are not used.

Dec 23, 2017 · Instead of going negative, an unsigned variable will cycle to its most maximum value by following a modulo 2 math behavior. So a 32 bit value will become 2^32 or 4294967296 if, for example, decremented 1 past 0.