// adding a constant string to a string: stringThree = stringOne + "abc"; Serial.println(stringThree); // prints "You added abc" stringThree = stringOne + stringTwo; Serial.println(stringThree); // prints "You added this string" // adding a variable integer to a string: int sensor...
// ROBOTH.h // We declare all variables(properties) and functions(methods) of the ROBOT object inside this header file #ifndef _ROBOTH_h #define _ROBOTH_h #include "Arduino.h" // Class for MOTOR class MOTOR { public: // Motor Type: // "D" - DC Motor String gstrMotorType = "...
Note: The "BricktronicsMotor" class has a constructor, so that it does not allow us to declare it inside our ROBOTH.h file, to work around, we need to set the PINS for the Motors in ROBOTH.cpp. Making our source codes cannot following the Object Oriented Programming styles for this ty...
(hex_data)) + ';\n' # Declare C variable c_str += 'unsigned char ' + var_name + '[] = {' hex_array = [] for i, val in enumerate(hex_data): # Construct string from hex hex_str = format(val, '#04x') # Add formatting so each line stays within 80 characters if (i +...
The ‘does not name a type’ error is an indication from the Arduino IDE that it was unable to find a definition for something that you’re trying to use. The most common cause of this error is when you are trying to declare or use a variable or function that doesn’t exist. ...
(NUM_LEDS, LED_PIN, NEO_GRB + NEO_KHZ800);// declare global parameters used by Fire2012bool gReverseDirection = false;void setup() {Serial.begin(115200);// init WS2812FX to use a custom effectws2812fx.init();ws2812fx.setBrightness(255);ws2812fx.setColor(BLUE);ws2812fx.setSpeed(...
You might want to follow the standard C form as you can't declare a variable twice in the same code block. So if you copy and paste some loop code into existing code, you would have to look back and remove the extra declarations. That or wait for the compiler to complain, which it...
//Rotary controls LEDint rotaryPin = A0; // select the input pin for the rotaryint ledPin = 4; // select the pin for the LEDint rotaryValue = 0; // variable to store the value coming from the rotaryvoid setup() { // declare the ledPin as an OUTPUT: pinMode(ledPin, OUTPUT);...
int sensorReading = 0; // variable to store the value read from the sensor pin int ledState = LOW; // variable used to store the last LED status, to toggle the light void setup() { pinMode(ledPin, OUTPUT); // declare the ledPin as as OUTPUT ...
Or you could use theinsertion-stylecapability of the compiler used by Arduino to format your print statements. You can take advantage of some advanced C++ capabilities (streaming insertion syntax and templates) that you can use if you declare a streaming template in your sketch. This is most ea...