How do you declare an array in Arduino?
Array declaration can be done in multiple ways including: int array[6]; (datatype arrayname [no. of array elements]) int array[]={1,2,3,4}; (datatype arrayname[]= {array elements}) int…
Embedded C
How can you access the last element of an array in Arduino?
The last element in an array in Arduino can be accessed by declaring/naming the array size -1. Related Questions What is Arduino IDE? What…
How is the first index of the array in Arduino defined?
The first index of the array in Arduino is always a “zero” or 0. Related Questions What is Arduino IDE? What is a Compiler?…
What will happen if the user does not define the array size in Arduino?
If the user does not define the array size, the compiler will count the array elements and allocate the required size. Related Questions What…
What is the syntax of pulseIn()?
The syntax of pulseIn() is pulseIn(pin, value), where pin is the Arduino pin and value is either HIGH or LOW. Related Questions What is…
Is it possible to change the functionality of a pin without code?
No, it is not possible to change the functionality of a pin without code as this requires interaction from the microcontroller. Related Questions What…
Is it possible to use NeoPixel without using a library?
No, the settings for the colors are stored in RAM on the individual devices so they need to be reprogrammed every time they are…
What is the syntax for Serial.println() function?
The Serial.println() function prints data to the serial port as human-readable ASCII text followed by a carriage return character. The syntax is Serial.println(val). Related…
What are the functions of setup(), loop() and delay()?
setup() sets things up that have to be done once and then don’t happen again. loop() contains the instructions that get repeated over and…
What is #define?
#define is a C++ component that allows the programmer to provide a name to constant(Data values that stay the same every time a program…
What is setPixelColor() function used for?
SetPixelColor() function defines the LEDs color with the RGB system. It starts from 0 to LED_NUM -1. Related Questions What is Arduino IDE? What…
What is setBrightness() function used for?
SetBrightness() function sets the light intensity. The minimum number is 1 and maximum number is 255. Related Questions What is Arduino IDE? What is…
What is show() function used for?
Show() function is used to display the applied values. Related Questions What is Arduino IDE? What is a Compiler? What is an Algorithm? What…
What is the function of pulseIn()?
The pulseIn() function reads the echo pin and will start measuring the duration of the pulse when the signal changes from HIGH to LOW.…
What is the purpose of the setup() and loop() functions in Arduino programming?
The setup() function is used to configure the Arduino board when it first starts up. It is run once, when the microcontroller is powered…
What is meant by “serial communication”?
Serial communication is a method used to transfer data between two or more devices. It requires a physical connection between the devices using a…
How can we write the firmware code for ESP32?
We can write firmware code for ESP32 using Arduino IDE or ESP IDF (IoT Development Framework). Related Questions What is Arduino IDE? What is…
What is the difference between low level language and high level language?
Low level language is a machine language with mostly 1s and 0s which humans cannot remember and process, while high level language (including C/C++)…
What is begin() function used for?
Begin() function does the initializations. It is used to set the parameters and prepare the program for execution. Related Questions What is Arduino IDE?…
What are some of the modules available with the ESP32?
The following modules are available with the ESP32: Wi-Fi, Bluetooth, GPIO, UART, SPI, I2C, ADC, DAC, PWM, and capacitive touch. Related Questions What is…
What is the operating voltage of the ESP32?
The ESP32 typically operates with a 3.3V power supply. Related Questions What is Arduino IDE? What is a Compiler? What is an Algorithm? What…
What are the features of the ESP32?
Some of the ES32’s features include: dual-core processor, integrated Wi-Fi, Bluetooth low energy, secure hardware-level encryption, ultra-low-power solutions, and extended radio frequency band support.…
What type of coding language is used for the Arduino IDE?
The coding language that Arduino uses is a combination of C and C++ programming language. Mostly uses C++ which is a common language in…
What are ESP32 GPIO pins?
The ESP32 chip comes with 48 pins with multiple functions. Not all pins are exposed in all ESP32 development boards, and some pins cannot…
What is an ESP32 Microcontroller?
The ESP32 is a powerful microcontroller with integrated Wi-Fi and dual-mode Bluetooth developed by Espressif. It targets a wide variety of applications ranging from…
What is ESP32?
ESP32 is short for ‘Espressif Systems Programmable Processor-32 Module’. It is a widely used microcontroller-based platform which is used for programming IoT applications. It…
What are Libraries in programming language?
Libraries in programming languages are collections of prewritten code that users can use to complete their tasks. Arduino also has a bundle of libraries…
How is analogWrite() different from digitalWrite()?
DigitalWrite will set the specified pin to two states, either High or Low. This equates the flow of current to be 5V or 0V.…
What is analogWrite()?
AnalogWrite is a function used to write analog values to a pin. This is mainly used to change the intensity of the program or…
What is delay()?
Delay() pauses the program for the amount of time (in milliseconds) as specified. Related Questions What is Arduino IDE? What is a Compiler? What…