Dec 30, 2013 · The operators are && and ||, They are logical operators, and mean AND and OR, respectively. The parentheses are there to explicitly define the order of precedence. The above statement reads, in Emglish, as: IF first_red_LED equals 1 AND second_red_LED equals either 2 OR 4, then // do stuff. Edit: Fixed English translationm of IF statement.

May 16, 2024 · Make sure you don’t mistake the boolean AND operator, && (double ampersand) for the bitwise AND operator & (single ampersand). They are entirely different beasts. See also & (Bitwise AND)

Mar 22, 2012 · I have the following code on my Arduino Mega2560. double t = .1; void setup() { // put your setup code here, to run once: Serial.begin(9600); } void loop() { // put your main code here, to run repeatedly: Serial.println(t); if(t == 0.70){ Serial.println("hi there"); } delay(100); t = t …

Jul 16, 2015 · For instance, this (untested) code will turn three digital reads into a single number between 0 and 7: uint8_t value = digitalRead(x) | (digitalRead(y) << 1) | (digitalRead(z) << 2); x is the least significant bit, and z is the most significant.

Here we use a logical AND statement using a double "&" or "&&". A single "&" is a bitwise function and will produce a compile error. Here we are checking S1 AND S2.

Nov 8, 2024 · This operator can be used inside the condition of an if statement. // statements. Make sure you don’t mistake the boolean AND operator, && (double ampersand) for the bitwise AND operator & (single ampersand). They are entirely different beasts.

Oct 18, 2009 · You probably want to do something like this: if (something == true && something-else == true && ... The && stand for and, so you can create an if statement which will only execute something if all of a certain group of parameters are met.

May 15, 2017 · If the event is to be both time independent and dependent then you need to add the code to handle the logic. Consider checking if it is between 7am and, say, 7pm. If true then test if the moisture detector is dry.

Oct 9, 2015 · To do this you make the first if statement and then make a chain of if else statements followed by a single else statement. You can have a single if statement with no else or if else statements however, if you want else or if else statements then you need to have an if …

Mar 4, 2025 · Nested if statements are a powerful tool in Arduino programming, allowing you to create complex decision-making structures. By understanding how to implement and utilize these statements effectively, you can enhance the functionality of your projects.