I don’t have the exact sensor as you, but this code is a snippet that I’ve been working on. You can look at it… Maybe it could help. If it did, then good 🙂 /* Project goal: Arduino built quadcopter. Motor diagram: Legend: num : motor number -> : clockwise <- : counter-clockwise 2 -> … Read more
Since you can use C++, the default option for storing an array of integers is std::vector: std::vector<int> wave; for (int i = 0; i <= 4000; i += 100) wave.push_back(i); If you want to have a C array as the result (e.g. for compatibility with other code that uses such arrays), because you know the … Read more
setDateTime() accepts ints as parameters, yet you give it char array. The call should be: clock.setDataTime(2017, 3, 22, 16, 20, 4); 0 solved error: invalid conversion from ‘char*’ to ‘uint32_t
result of new should be assigned to a pointer ExtendedElement *extendedElement = new ExtendedElement(); elements should be a vector of pointers class Wrapper { private: std::vector<Element*> elements; public: void execute() { for (Element *element : elements) { element->execute(); } } void addTask(Element *element) { elements.push_back(element); } }; 0 solved How to do inheritance [duplicate]
Yes it seems that it is still disabled in the current version. A quick search on the Arduino forum got me this : Arduino Due and tone() I can’t test their code but it seems that the guy found a pretty decent solution to make his own tone(). Have a look and tell us if … Read more
They are different things. Raspberry PI is a computer, arduino is just a microcontroller with peripherals as facilities. Raspberry runs an Operational System inside, Arduino doesn’t. Raspberry has a digital-only set of electrical interfaces. Arduino has both analog and digital. Depend on the project needs one or other is more suitable. Since IoT have infinite … Read more
It waits forever, because it couldn’t get the IP address. Basically, the program gives up and stalls. Nothing happens after this. 0 solved What does this while(true) loop do in Arduino or any other language?
If I understood your question correctly then maybe this? x = (1 – rpm/rpm_max)*255 UPDATE: as mentioned by CandiedOrange – rpm and rpm_max need to be float or double for it to work. Otherwise the value of x would simply switch back and forth between 0 and 255. 3 solved You just need to think … Read more
Since the task is to set a certain pin as output, the first thing you need to do is to check the board schematics to find out which microcontroller port and pin that “pin 12” corresponds to. Microcontroller ports often have a 1 letter name such as PORTA, PORTB etc. This is also the case … Read more
You’ve got an else with no attached if. Presumably, the println are supposed to be inside the following block, rather than being the entire body of the if statement: if(ID.indexOf(msg)>=0) { Serial.println(“Access granted.”); // <<< inside if body digitalWrite(10, HIGH); delay(2000); digitalWrite(10, LOW); } else { Serial.println(“Access denied.”); // <<< inside else body digitalWrite(9, HIGH); … Read more
In C++, if you have a C++11 capable compiler and you use std::vector instead of raw arrays, you could use initializer lists: void kilos(const std::vector<int> percentage, const std::vector<std::string> liquid); // … kilos({40, 60}, {“water”, “milk”}); solved Syntax for arrays as operands
Your questions are quite broad, but I’ll try to answer you How can I wire the Arduino to the room light? You need to use either mosfet components or relays. The most easy one to use is the relay. Usually, you drive the relay with a simple BC337 NPN transistor. What does all that mean? … Read more
I would use a command line interface with python, but I know you would prefer C# or java. If you want to make a graphical interface use java, but I do not know much about C#, only C++. if they are alike with the libraries, then use C# for a command line interface like on … Read more
You can use a Boolean flag which is set in any of your ifs. bool noPathTaken = true; if ( condition1 ) { noPathTaken = false; // … } if ( condition2 ) { noPathTaken = false; // … } // … if ( noPathTaken ) { // this would be your “else” // … … Read more
I have searched on google, i found this : For Arduino : https://www.arduino.cc/en/Reference/Ethernet For Windows : http://www.nullskull.com/articles/20020323.asp solved create a program that communicate with the arduino using VB.net