Arduino is very well known as a platform that can be used by anyone to develop open source hardware and software….. Its goal is to create digital or interactive devices using hardware cards.

The Arduino board is used for a wide range of tasks. Works via the Arduino IDE, whose programming language allows you to write instructions for the circuits covered by this board.

The reason we made this post is that it may vary depending on your needs and application. Here are the most excellent and feasible Arduino projects you can use.

List of the best Arduino projects for beginners that you can do yourself

Through these projects, you’ll learn some of the most fundamental concepts for creating programs and interaction devices, as well as how to use different components so you can start designing great systems for your own benefit.

Let’s go:

Do a battery test

If you want to know how much energy is left in one of your batteries, you can build the perfect battery tester with this project. With a few things like an Arduino UNO board and some LEDs, you have the advantage of building and testing a battery that requires less than 5 watts.

For this project you will need an Arduino UNO board, a temperature, humidity and pressure sensor; Adafruit BME680, an Adafruit INA169 monitor board, a 1kOhm resistor, a capacitor, a spark plug and a bunch of wires to connect all the elements to the board.

Once you have all these components and they are assembled as shown in the image, you need to log into the Arduino programming environment and write down these instructions:

#include Arduino.h

#include Board.h

#include Helium.h

#include HeliumUtil.h

#include TimeLib.h

#include BlueDot_BME680.h

#include TimerSupport.h

#define CHANNEL_NAME GCIoTCore

#define XMIT_PERIOD_MS 20000

#define VOLTS_SAMPLE_RATE_MS 250

Helium helium(&atom_serial) ;

Channel (Helium) ;

BlueDot_BME680 bme680 = BlueDot_BME680() ;

#define TS_BUF_SIZE 40

char TSbuf[TS_BUF_SIZE] ;

char *TSbuf_ptr = TSbuf ;

char buffer[HELIUM_MAX_DATA_SIZE] ;

#define ADC_VOLTS_PER_BIT 0.00488

int ADCValue = 0 ;

to structure the helium information;

Time Stamp ;

Time elements tm ;

long highCurrentSamples = 0 ;

lang lowCurrentSamples = 0 ;

float peak current = 0 ;

Float peakVoltage = 0 ;

#define MAX_JSON_FORMAT_STR 7

char JSON_FORMATS[][MAX_JSON_FORMAT_STR] = {

{i :,

,T :,

,H :,

..,

,V :,

..,

..,

“}”

};

int addToBuffer(char *insertionPoint, int maxLen, char *src)

{

snprintf(insertPoint, maxLen, src) ;

return strlen(insertionPoint) ;

}

void sendInfoViaHelium()

{

static unsigned long i = 0 ;

Floating t = 0 ;

Floating h = 0 ;

Floating v = 0 ;

float ip = 0 ;

float ia = 0 ;

char *buf_ptr = buffer ;

char tmpBuf[11] ;

long totalSamples = highCurrentSamples + lowCurrentSamples ;

i++ ;

print(F(i = )) ;

Println(i) ;

buf_ptr += addToBuffer(buf_ptr, MAX_JSON_FORMAT_STR, JSON_FORMATS[0]) ;

snprintf(tmpBuf, 11, %lu, i) ;

buf_ptr += addToBuffer(buf_ptr, sizeof(tmpBuf), tmpBuf) ;

writeCTRLMeas() ;

t = bme680.readTempC() ;

print(F(Temp = )) ;

print

println(F( degree C)) ;

buf_ptr += addToBuffer(buf_ptr, MAX_JSON_FORMAT_STR, JSON_FORMATS[1]) ;

dtostrf(t, 3, 2, tmpBuf) ;

buf_ptr += addToBuffer(buf_ptr, 6, tmpBuf) ;

h = bme680.readHumidity() ;

print(F(moisture = ))) ;

print(h) ;

println(F( %)) ;

buf_ptr += addToBuffer(buf_ptr, MAX_JSON_FORMAT_STR, JSON_FORMATS[2]) ;

dtostrf(h, 3, 2, tmpBuf) ;

buf_ptr += addToBuffer(buf_ptr, 6, tmpBuf) ;

information(&info) ;

Time stamp = Time ;

print(F(timestamp = ))) ;

println(timestamp) ;

breakTime(timestamp, tm) ;

snprintf(TSbuf_ptr, TS_BUF_SIZE, %d-%d-%d:%d:%d, tm.Year + 1970, tm.Month, tm.Day, tm.Hour, tm.Minute, tm.Second) ;

print(F(TSbuf is )) ;

println(TSbuf) ;

print(F(TSbuf length is )) ;

println(strlen(TSbuf)) ;

buf_ptr += addToBuffer(buf_ptr, MAX_JSON_FORMAT_STR, JSON_FORMATS[3]) ;

buf_ptr += addToBuffer(buf_ptr, TS_BUF_SIZE, TSbuf) ;

v = peak voltage ;

print(F(voltage = )) ;

print(v) ;

println(F( Volts)) ;

buf_ptr += addToBuffer(buf_ptr, MAX_JSON_FORMAT_STR, JSON_FORMATS[4]) ;

dtostrf(v, 3, 2, tmpBuf) ;

buf_ptr += addToBuffer(buf_ptr, 6, tmpBuf) ;

ip = peak current ;

print(F(Curr pk = ))) ;

Print(ip) ;

println(F( Amps)) ;

buf_ptr += addToBuffer(buf_ptr, MAX_JSON_FORMAT_STR, JSON_FORMATS[5]) ;

dtostrf(ip, 4, 3, tmpBuf) ;

buf_ptr += addToBuffer(buf_ptr, 6, tmpBuf) ;

ia = peakCurrent * highCurrentSamples / totalSamples ;

print(F(Curr avg = ))) ;

Print(ia) ;

println(F( Amps)) ;

buf_ptr += addToBuffer(buf_ptr, MAX_JSON_FORMAT_STR, JSON_FORMATS[6]) ;

dtostrf(ia, 8, 6, tmpBuf) ;

buf_ptr += addToBuffer(buf_ptr, 9, tmpBuf) ;

buf_ptr += addToBuffer(buf_ptr, MAX_JSON_FORMAT_STR, JSON_FORMATS[7]) ;

println(buffer) ;

print(F(buffer length)) ;

println(strlen(buffer)) ;

channel_send(&channel, CHANNEL_NAME, buffer, strlen(buffer)) ;

}

void measureBattery()

{

float trap = 0 ;

moving threshold = 0 ;

ADCValue = analogue reading (A1) ;

Val = ADCValue * ADC_VOLTS_PER_BIT ;

if (fall > peak current)

{

Peak current = wave ;

}

if (peak current > 0)

{

Threshold = Peak current / 4.0

If (fall > threshold)

{

highCurrentSamples++ ;

}

if (val <= threshold) { lowCurrentSamples++; } else { lowCurrentSamples++; } if (!down_timer_running(READ_VOLTS_timer)) { init_down_timer(READ_VOLTS_timer, VOLTS_SAMPLE_RATE_MS); ADCValue = analogRead(A0); val = ADCValue * (ADC_VOLTS_PER_BIT * 4); if (val > peakVoltage)

{

peakVoltage = val ;

}

}

}

void resetBatteryVars()

{

highCurrentSamples = 0 ;

lowCurrentSamples = 0 ;

Peak current = 0 ;

Peak voltage = 0 ;

}

void setup()

{

int retVal ;

In me;

start (9600) ;

DBG_PRINTLN(F(Start)) ;

start(HELIUM_BAUD_RATE) ;

helium_connect(&helium) ;

channel_create(&channel, CHANNEL_NAME) ;

parameter.I2CAddress = 0x77 ;

parameter.sensorMode = 0b01 ;

parameter.IIRfilter = 0b100 ;

parameter.humidOversampling = 0b101 ;

parameter.tempOversampling = 0b101 ;

parameter.pressOversampling = 0b000 ;

retVal = bme680.init() ;

if (retVal != 0x61)

{

DBG_PRINT(F(BME680 could not be found… Chip ID was 0x)) ;

DBG_PRINT(retVal, HEX) ;

DBG_PRINTLN(F( instead of 0x61)) ;

}

init_down_timer(SEND_timer, XMIT_PERIOD_MS) ;

init_down_timer(READ_VOLTS_timer, VOLTS_SAMPLE_RATE_MS) ;

resetBatteryVars() ;

}

void loop()

{

MeasureBattery() ;

if (!down_timer_running(SEND_timer))

{

init_down_timer(SEND_timer, XMIT_PERIOD_MS) ;

DBG_PRINT(F(highCurrentSamples = )) ;

DBG_PRINTLN(highCurrentSamples) ;

DBG_PRINT(F(lowCurrentSamples = )) ;

DBG_PRINTLN(lowCurrentSamples) ;

sendInfoViaHelium() ;

resetBatteryVars() ;

}

}

Construction supervision

Arduino allows you to design different types of custom clocks depending on your needs. For example, a very simple alarm clock that can be made with simple parts. Refer to the diagram in the illustration for the connection of all components.

Then you need to connect to the IDE and enter these commands:

#include //

#include //

#include // RTC

in the Zumbador = 13 ;

uint8_t hh = 0 , mm = 0 , ss = 0 ;

uint8_t timerMode = 0 , setMode = 0 , setAlarm = 0 , alarmMode = 0 ;

uint8_t alarmaHH = 0 , alarmaMM = 0 , alarmaSS = 0 ;

uint8_t timerh = 0 , timermm = 0 , timerss = 0 ;

Liquid crystal display (12, 11, 5, 4, 3, 2) ;

DS3231 rtc (SDA, SCL) ;

Tiempo t ;

#define DN_PIN 7

#define UP_PIN 8

#define SET_PIN 9

#define ALR_PIN 10

#define PULLUP true #define PULLUP true

#Defining the truth INVERT

#define DEBOUNCE_MS 20

#define REPEAT_FIRST 500

#define REPEAT_INCR 100

/Touch Keys

Key in btnDN(DN_PIN, PULLUP, INVERT, DEBOUNCE_MS);

btnUP(UP_PIN, PULLUP, INVERT, DEBOUNCE_MS) key;

btnSET(SET_PIN, PULLUP, INVERT, DEBOUNCE_MS) key;

btnALR(ALR_PIN, PULLUP, INVERT, DEBOUNCE_MS) key;

enum {WAIT, INCR, DECR} ;

uint8_t STATE ;

…on the bill;

int lastCount = -1 ;

unsigned long rpt = REPEAT_FIRST ;

void setup() {

start (9600) ;

begins(16:2);

pinMode(buzzer,OUTPUT) ;

start() ;

setCursor(0,0) ;

Siegel (Welcome, Shakib!);

Delay (2000);

Clearly;

}

void loop() {

t=rtc.getTime() ;

Time, DEC ;

mm=t.min, DEC ;

ss=t.sec, DEC ;

read() ;

read() ;

read() ;

read() ;

if(setMode==0 && setAlarm==0 ){

tunjukJamTemp() ;

tunjukTimer();}

if(setMode!=0 && setAlarm==0 && alarmMode==0 ){delay(100);}

if(setMode==1 && setAlarm==0 && alarmMode=0 ){lcd.setCursor(7,1);lcd.print( );delay(100);tunjukJamTemp();tunjukTimer();}

if(setMode==2 && setAlarm==0 && alarmMode==0 ){lcd.setCursor(10,1);lcd.print( );delay(100);tunjukJamTemp();tunjukTimer();}

if(setMode==3 && setAlarm==0 && alarmMode==0 ){lcd.setCursor(13,1);lcd.print( );delay(100);tunjukJamTemp();tunjukTimer();}

if(setMode==4 && setAlarm==0 && alarmMode==0 ){tunjukJamTemp();tunjukTimer();stepDown();delay(1000);}

if(setMode==0 && setAlarm!=0 && alarmMode==0 ){delay(100);}

if(setMode==0 && setAlarm==2 && alarmMode==0 ){lcd.setCursor(0,0);lcd.print( );delay(100) ; setCursor(0,0) ;

if(alarmHH<10){lcd.print(0);}

print(alarmHH);lcd.print( :);

if(alarmMM<10){lcd.print(0);}

print(alarmMM);lcd.print( :);

if(alarmSS<10){lcd.print(0);}

print(alarmSS);lcd.setCursor(0,1) ;

print(set alarm); }

if(setMode==0 && setAlarm==3 && alarmMode==0 ){lcd.setCursor(3,0);lcd.print( );delay(100) ; setCursor(0,0) ;

if(alarmHH<10){lcd.print(0);}

print(alarmHH);lcd.print( :);

if(alarmMM<10){lcd.print(0);}

print(alarmMM);lcd.print( :);

if(alarmSS<10){lcd.print(0);}

print(alarmSS);lcd.setCursor(0,1) ;

print(set alarm); }

if(setMode==0 && setAlarm==4 && alarmMode==0 ){lcd.setCursor(6,0);lcd.print( );delay(100) ; setCursor(0,0) ;

if(alarmHH<10){lcd.print(0);}

print(alarmHH);lcd.print( :);

if(alarmMM<10){lcd.print(0);}

print(alarmMM);lcd.print( :);

if(alarmSS<10){lcd.print(0);}

print(alarmSS);lcd.setCursor(0,1) ;

print(set alarm); }

if(setMode==0 && setAlarm==5 && alarmMode==0 ){alarmMode=1;setAlarm=0;}

setupAlarm() ;

Alarms (alarmHH, alarmMM) ;

read() ;

read() ;

read() ;

read() ;

switch (STATE) {.

the case is pending:

if (btnSET.wasPressed())

{ setMode = setMode+1;}

if (btnALR.isPressed())

{ setAlarm = setAlarm+1;}

if (btnUP.wasPressed())

STATUS = INCR ;

else if (btnDN.wasPressed())

STATUS = DEC ;

else, if (btnUP.wasReleased())

rpt = REPEAT_FIRST ;

else if (btnDN.wasReleased())

rpt = REPEAT_FIRST ;

else, if (btnUP.pressedFor(rpt)) {

rpt += REPEAT_INCR ;

STATUS = INCR ;

}

else, if (btnDN.pressedFor(rpt)) {

rpt += REPEAT_INCR ;

STATUS = DEC ;

}

Break;

INCR case :

if (setMode==1 && setAlarm==0 && alarmMode=0 && timerhh<23)timerhh=timerhh+1 ;

if (setMode==2 && setAlarm==0 && alarmMode==0 && timermm<59)timermm=timermm+1 ;

if (setMode==3 && setAlarm==0 && alarmMode=0 && timerss<59)timerss=timerss+1 ;

if (setMode==0 && setAlarm==2 && alarmMode==0 && alarmHH<23)alarmHH=alarmHH+1 ;

if (setMode==0 && setAlarm==3 && alarmMode==0 && alarmMM<59)alarmMM=alarmMM+1 ;

if (setMode==0 && setAlarm==4 && alarmMode==0 && alarmSS<59)alarmSS=alarmSS+1; STATE = WAIT; break; case DECR: if (setMode==1 && setAlarm==0 && alarmMode==0 && timerhh>0)timerhh=timerhh-1 ;

if (setMode==2 && setAlarm==0 && alarmMode==0 && timermm>0)timermm=timermm-1 ;

if (setMode==3 && setAlarm==0 && alarmMode==0 && timerss>0)timerss=timerss-1 ;

if (setMode==0 && setAlarm==2 && alarmMode==0 && alarmHH>0)alarmHH=alarmHH-1 ;

if (setMode==0 && setAlarm==3 && alarmMode==0 && alarmMM>0)alarmMM=alarmMM-1 ;

if (setMode==0 && setAlarm==4 && alarmMode==0 && alarmSS>0)alarmSS=alarmSS-1 ;

STATE = WAIT ;

Break;

}

}

void stepDown() {

if (Timer > 0) {

Timer -=1 ;

Other than that…

if (Timer > 0) {

Timer = 59 ;

Timer -=1 ;

Other than that…

if (Timer > 0) {

Timer = 59 ;

Timer = 59 ;

timerx -=1 ;

Other than that…

for(int i=0;i<30;i++){

setCursor(0,0) ;

print(rtc.getTimeStr()) ;

setCursor(10,0) ;

print(rtc.getTemp()) ;

Pressure(C) ;

read() ;

if(btnSET.wasPressed()){digitalWrite(Buzzer,LOW);i=30;}else{.

digitalWrite(buzzer, HIGH) ;

Delay (500);

digitalWrite(buzzer,LOW) ;

delay(500);}

}

setMode=0 ;

}

}

}

}

void tunjukTimer(){

setCursor(0, 1) ;

Print (Timer:);

print() ;

(Timer < 10) ? lcd.print(0) : ZERO;

print (timer) ;

print( :);

(Timer < 10) ? lcd.print(0) : ZERO;

Printing (Timer) ;

print( :);

(timers < 10) ? lcd.print(0) : ZERO;

print(timerss) ;

}

void tunjukJamTemp(){

setCursor(0,0) ;

print(rtc.getTimeStr()) ;

setCursor(10,0) ;

print(rtc.getTemp()) ;

Pressure(C) ;

}

void Alarm(uint8_t alarmHH,uint8_t alarmMM){

if(alarmMode==1 && alarmHH==hh && alarmMM==mm){

for(int i=0;i<30;i++){

setCursor(0,0) ;

print(rtc.getTimeStr()) ;

setCursor(10,0) ;

print(rtc.getTemp()) ;

Pressure(C) ;

setCursor(0, 1) ;

Print (Timer:);

print() ;

(Timer < 10) ? lcd.print(0) : ZERO;

print (timer) ;

print( :);

(Timer < 10) ? lcd.print(0) : ZERO;

Printing (Timer) ;

print( :);

(timers < 10) ? lcd.print(0) : ZERO;

print(timerss) ;

read() ;

if(btnALR.wasPressed()){digitalWrite(Buzzer,LOW);i=30;}else{.

digitalWrite(buzzer, HIGH) ;

Delay (500);

digitalWrite(buzzer,LOW) ;

delay(500);}

}

alarmMode=0 ;

SetAlarm=0 ;

}}

void setupAlarm(){

if(setMode==0 && setAlarm==1 && alarmMode==0 ){

Clearly;

setCursor(0,1) ;

print (set alarm) ;

setCursor(0,0) ;

if(alarmHH<10){lcd.print(0);}

print(alarmHH);lcd.print( :);

if(alarmMM<10){lcd.print(0);}

print(alarmMM);lcd.print( :);

if(alarmSS<10){lcd.print(0);}

press (alarm) ;

}

}

Arduino signal light

With this project, we can build a semaphore with the Arduino. With certain components we will be able to perceive the red, yellow and green colours of cars in oncoming traffic. So, with two buttons, you can build a sensor that goes on and off to indicate when a car is approaching. So, if there is a traffic light, the light turns red, and if not, it turns green.

Backpack alert

If you want to prevent your backpack from being stolen, you can use this alarm. The design consists of an Arduino board, an 80 decibel alarm and a three-axis accelerometer. The alarm will sound if someone tries to open the backpack without your permission. Use the illustration to assemble the Arduino UNO board, triaxial accelerometer, piezo alarm, audio jack, 9-volt battery, jumper cables, and 9-volt plug.

After completing this step, you need to write the following to the IDE:

include.

#include

#include

#include

const int sense = 10 ;

Adafruit_LSM303_Mag_Unified mag = Adafruit_LSM303_Mag_Unified(12345) ;

Vacuum system

{

pinMode(13, OUTPUT) ;

if(!mag.begin())

{

// There was a problem with the recognition of LSM303… Check the connections.

digitalWrite(13, HIGH) ;

Delay (500);

digitalWrite(13, LOW) ;

Delay (500);

digitalWrite(13, HIGH) ;

Delay (500);

digitalWrite(13, LOW) ;

Delay (500);

Goodbye(1) ;

}

// Wait for 5 seconds.

Delay (5000) ;

// Startup alarm

digitalWrite(13, HIGH) ;

Delay (500);

digitalWrite(13, LOW) ;

}

// Function to retrieve the value from the sensor

int getDeg(void){

// Get a new contact event

sensors_event_t event;

getEvent(&event) ;

float Pi = 3.14159 ;

float rate = int((atan2(event.mag.y,event.mag.x) * 180) / Pi/)

if (rate < 0)

{

Heading = 360 + Heading ;

}

Get back! Get back!

}

Empty cycle

{

int oldDeg = getDeg() ;

Delay(1000);

int newDeg = getDeg() ;

if (newDeg < (oldDeg-sens) && oldDeg != 0 && newDeg != 0) { // Alarm digitalWrite(13, HIGH); // For debugging purposes only //Serial.println(Triggered); //Serial.println(); }else if (newDeg > (oldDeg+sens) && oldDeg!= 0 && newDeg != 0) {

// The sound of the alarm

digitalWrite(13, HIGH) ;

}

}

ArduinoVoice-controlled shutters

You can also use the Arduino board to move the blinds in your room or shop. In no time and with the right programming you can open and close the blinds with a voice command via Bluetooth. You need an Arduino Nano R3 board and all the parts you see in the picture.

Then run this program in the IDE:

interior brillo = 0 ;

int fadeAmount = 5 ;

int led = 3 ;

int inPin = 4 ;

int inPin2 = 7 ;

int val2 = 0 ;

int val = 0 ;

const int motorPin1 = 11 ;

const int motorPin2 = 10 ;

const int motorPin3 = 8 ;

const int motorPin4 = 9 ;

int estado ; int bandera = 0 ;

Vacuum configuration ()

{

pinMode ( motorPin1 , SALIDA ) ;

pinMode ( motorPin2 , SALIDA ) ;

pinMode ( motorPin3 , SALIDA ) ;

pinMode ( motorPin4 , SALIDA ) ;

pinMode ( inPin , INPUT ) ;

pinMode ( inPin2 , ENTRADA ) ;

pinMode ( led , SALIDA ) ;

start (9600) ;

delay(1000); }

void loop(){

analogWrite(LED, Brightness) ;

Brightness = Brightness + fadeAmount ;

if (brightness <= 0 || brightness >= 255) {

fadeAmount = -fadeAmount ;

}

Delay (30);

trap = digitalRead(inPin) ;

val2 = digitalRead(inPin2) ;

if(Serial.available() > 0)

{

state = Serial.read() ;

flag=0 ;

}

if (condition == ‘U’ || val == LOW)

{

digitalWrite (motorPin1, HIGH) ;

digitalWrite (motorPin2, HIGH) ;

digitalWrite (motorPin3, HIGH) ;

digitalWrite(motorPin4, HIGH) ;

Delay (2000);

digitalWrite(motorPin1, 0) ;

digitalWrite(motorPin2, 0) ;

digitalWrite(motorPin3, 0) ;

digitalWrite(motorPin4, 0) ;

Printlp (both above);

State = 0 ;

}

else if (condition == ‘D’ || val2 == LOW)

{

digitalWrite (motorPin1, HIGH) ;

digitalWrite(motorPin2, 0) ;

digitalWrite(motorPin3, 0) ;

digitalWrite(motorPin4, HIGH) ;

Delay (2000);

digitalWrite(motorPin1, 0) ;

digitalWrite(motorPin2, 0) ;

digitalWrite(motorPin3, 0) ;

digitalWrite(motorPin4, 0) ;

Prittln (both below) ;

State = 0 ;

}

if (status == ‘W’)

{

digitalWrite (motorPin1, HIGH) ;

digitalWrite (motorPin2, HIGH) ;

Delay (2000);

digitalWrite(motorPin1, 0) ;

digitalWrite(motorPin2, 0) ;

Println(Straight up) ;

State = 0 ;

}

otherwise, if (condition == ‘L’)

{

digitalWrite (motorPin1, HIGH) ;

digitalWrite(motorPin2, 0) ;

Delay (2000);

digitalWrite(motorPin1, 0) ;

digitalWrite(motorPin2, 0) ;

Prittln (bottom right);

State = 0 ;

}

if (status == K)

{

digitalWrite (motorPin3, HIGH) ;

digitalWrite(motorPin4, HIGH) ;

Delay (2000);

digitalWrite(motorPin3, 0) ;

digitalWrite(motorPin4, 0) ;

Prittln (top left);

State = 0 ;

}

otherwise, if (condition == ‘I’)

{

digitalWrite(motorPin3, 0) ;

digitalWrite(motorPin4, HIGH) ;

Delay (2000);

escritura digital(motorPin3, 0) ;

digitalWrite (motorPin4, 0) ;

Standard … prittln ( Izquierda abajo ) ;

estado = 0 ;

}

}

Stopwatch

You can turn an Arduino board into a simple stopwatch using different materials. You’ll need two knobs, some resistors, a plate and some cables so you can build this nifty timing device.

Make the connections according to the diagram we showed you, and then write these programming codes in the Arduino environment:

#include

#define interruptPin 2

#define eeAddress 0

hora de inicio flotante = 0 ;

End of swimming time = 0 ;

floador resulttime = 0 , oldresulttime = 0 ;

Configuration vacía () {

Series . comenzar (9600) ;

while (!Serial)

;

}

Series … println (¡Las comunicaciones en serie están listas, señor! : … bip bip) ;

attachInterrupt ( digitalPinToInterrupt ( interruptPin ), refreshTime , CHANGE ) ;

}

bucle vacío ()

}

void refreshTime () {

If ( digitalRead ( interruptPin )) {

hora de inicio = milis () ;

print(start-time : ) ; Serial.println(start-time) ;

задница

If(digitalRead(interruptPin)==LOW){

endtime=millis() ;

resulttime=resulttime-starttime ;

print(endtime : ) ; Serial.printintln(endtime) ;

print(resulttime : ) ; Serial.println(resulttime) ;

WhatsNewEeprom() ;

}

}

void WhatsNewEeprom(){

println(———–checking eeprom);

Get( eeAddress, oldResultTime ) ;

print(oldresulttime);Serial.println(oldresulttime) ;

Sequential . print ( tiempo de resultado ) ; Sequential . print ( tiempo de resultado ) ;

if ( result time ! = old result time ) {

EEPROM . put ( eeAddress , resulttime ) ;

Sequential. Print ( —– ¡Ding ! Nuevo tiempo registrado en eeprom : ) ; Sequential . Pressure (tiempo de resultado) ;

Serial . println ( No se encontró una nueva hora, eeprom no fue perturbado ) ;

}

}

Twitter with Arduino

With Arduino you can apply amazing new applications to many things and even to your Twitter account. If programmed accordingly, this function can be activated by connecting a switch and a relay to the circuit board. You must have a UNO model, a 330 ohm resistor, an ignition button, a solder plate and wires. In order to combine all these elements, you must take into account the picture we present to you.

Then enter these programming sequences into the IDE:

#define CUSTOM_SETTINGS

#define INCLUDE_TWITTER_SHIELD

#include

int buttonPin = 12 ;

int ledPin = 13 ;

void setup()

{

/* Beginning of the call */

start() ;

/* Set the pushbutton pin as the input pin. */

pinMode(buttonPin,INPUT) ;

/* Set the LED pin as the output pin. */

pinMode(ledPin,OUTPUT) ;

}

void loop()

{

/* Always check the status of the key. */

if(digitalRead(buttonPin) == HIGH)

{

/* Turn on the LED. */

digitalWrite(ledPin,HIGH) ;

/* Twitter. */

tweet(Uso IPAP como plataforma para aprender) ;

/* Keep 300 missing. */

Time Frame(300) ;

}

other

{

/* Turn off the LED. */

digitalWrite(ledPin,LOW) ;

}

}

Bulb system

There are more sophisticated devices that you can use to turn the lights in your home on and off. You will need some materials to make your own lighting system and operate it with your own hands. To do this, connect the resistors and relays to the circuit board as shown in the figure. The same should be done with the other parts.

When everything is ready, show the codes:

#define CUSTOM_SETTINGS

#define INCLUDE_GPS_SHIELD

#define INCLUDE_TEXT_TO_SPEECH_SHIELD

#define INCLUDE_ORIENTATION_SENSOR_SHIELD

#define INCLUDE_VOICE_RECOGNIZER_SHIELD

#define INCLUDE_MIC_SHIELD

#define INCLUDE_DATA_LOGGER_SHIELD

#define INCLUDE_CAMERA_SHIELD

#include

String openpass = contraseña ;

String Pass = Entry holes ;

String lighton = luz encendida ;

String Signal = luz apagada ;

Image string = selfie ;

int Light = 22 ;

int LockMotor1 = 24 ;

int LockMotor2 = 25 ;

Longitudinal float, latitude ;

int lock = 0 ; // 0 = cerrado, 1 = abierto

orientation = 0; // Check the orientation of the phone. 1 = Orientation is confirmed.

Vacuum configuration ()

{

OneSheeld . comenzar () ;

pinMode ( Luz , SALIDA ) ;

digitalWrite ( Ligero , ALTO ) ; // El relé está activo BAJO (ALTO = La luz está apagada inicialmente )

pinMode ( LockMotor1 , SALIDA ) ;

pinMode ( LockMotor2 , SALIDA ) ;

digitalWrite ( LockMotor1 , LOW ) ;

digitalWrite ( LockMotor2 , LOW ) ;

retrazo (2000);

Recorder. Detector () ;

}

bucle vacío ()

{

while ( 1 ) {

longitude = GPS . getLongitude() ;

Latitude = GPS . getLatitude () ;

si ( longitud > = 78.05 && longitud <= 87.09 && latitud > = 88.60 && latitud <= 88.684 ) goto getpass ; demás TextToSpeech . say ( Para habilitar ) ; OneSheeld . retraso ( 5000 ) ; } conseguir pase : TextToSpeech . decir ( Do the Secret Turn ) ; while ( Orientation == 0 ) { if ( OrientationSensor . getX() > 120 ) && ( OrientationSensor . getY() > 0 ))

{Orientation = 1 ;

Combination ;}

Demos

OneSheeld . retraso (2000) ;

}

TextToSpeech . say ( Bloqueo de apertura ) ;

digitalWrite ( LockMotor1 , LOW ) ;

digitalWrite ( LockMotor2 , HIGH ) ;

retrazo (5000) ; // It takes about 5 seconds to completely remove the protection

digitalWrite ( LockMotor1 , LOW ) ;

digitalWrite ( LockMotor2 , LOW ) ;

retrazo (1000) ;

blockquote = 1 ;

LogData () ;

TextToSpeech . say ( Bienvenido a IPAP ) ;

retrazo (5000) ;

OneSheeld . retraso ( 5000 ) ;

while ( 1 ) {

Voice recognition . inicio () ;

if (VoiceRecognition . isNewCommandReceived () && VoiceRecognition . getCommandAsString () == lighton ) {

// Luce Engendidas

TextToSpeech . say ( Encendido de las luces ) ;

retrazo (1000) ;

digitalWrite ( Ligero , BAJO ) ;

Voice recognition . clearCommand () ;

OneSheeld . retraso ( 5000 ) ; // Este retraso se puede aumentar según sus propios requisitos .

}

if ( VoiceRecognition . isNewCommandReceived () && VoiceRecognition . getCommandAsString () == lightoff ) {

// Luz apagada

TextToSpeech . say ( Apagar las luces ) ;

retrazo (1000) ;

digitalWrite ( Ligero , ALTO ) ;

Voice recognition . clearCommand () ;

OneSheeld . retraso ( 5000 ) ;

}

if (VoiceRecognition . isNewCommandReceived () && VoiceRecognition . getCommandAsString () == lockpass ) {

// Bloquear IPAP

TextToSpeech . decir ( Luces apagadas ) ;

OneSheeld . retraso (2000) ;

digitalWrite ( Ligero , ALTO ) ;

OneSheeld . retraso (2000) ;

// Linear electronics Cerrar cerradura/

TextToSpeech . say ( Bloqueando ) ;

digitalWrite ( LockMotor1 , HIGH ) ;

digitalWrite ( LockMotor2 , LOW ) ;

retrazo (5000) ; // It takes about 5 seconds to completely remove the protection

digitalWrite ( LockMotor1 , LOW ) ;

digitalWrite ( LockMotor2 , LOW ) ;

retrazo (1000) ;

blockquote = 0 ;

LogData () ;

OneSheeld . retraso (2000) ;

TextToSpeech . say ( Bloqueo completo. ¡Adiós !);

Voice recognition . clearCommand () ;

Orientation = 0 ;

Overpass ;

OneSheeld . retraso ( 5000 ) ;

}

if ( Mic . getValue () > = 80 ) {

TextToSpeech . decir ( No molestar a los demás ) ;

retrazo (2000);

OneSheeld . retraso ( 5000 ) ;

}

if ( VoiceRecognition . isNewCommandReceived () && VoiceRecognition . getCommandAsString () == imagen ) {

Cámara . setFlash ( ENCENDIDO ) ;

TextToSpeech . diga ( Cámara trasera encendida ) ;

Cámara . rearCapture () ;

OneSheeld . retraso ( 1000 ) ;

TextToSpeech . diga ( Cámara frontal encendida ) ;

Cámara . frontCapture () ;

retrazo (2000);

Voice recognition . clearCommand () ;

OneSheeld . retraso ( 5000 ) ; // Este retraso se puede aumentar según sus propios requisitos .

}

or

retrazo (100) ;

OneSheeld . retraso ( 5000 ) ;

}

}

}

or

OneSheeld . retraso ( 5000 ) ;

Overpass ;

}

// Fin del ciclo // Fin del diclo

invalid logs ()

{

Recorder. Detector () ;

OneSheeld . retraso ( 500 ) ;

Registrar . inicio ( Entrada y Salida ) ;

if (lock == 1) { // La cerradura se ha abierto

Registrar. doggar ( Entrada / Salida , Entrada ) ;

Log . log () ; }

…or else…

Logbook . doggar ( Entrada / Salida ) ;

Log . log () ; }

Recorder. Detector () ;

}

Morse code transmitter

You can use your Arduino development board to make it a morse code transmitter. By connecting the Arduino board to an LED and a 22 ohm resistor, the SOS message can be sent in Morse code. You will need an Arduino UNO board, plain wiring, a photocell and a buzzer. There should also be plugs and cables to connect the elements.

Once everything is ready, look at the picture to connect the components and open the Arduino programming environment to enter the following:

const char* MorseTable[] = {

ZERO, ZERO, ZERO, ZERO, ZERO,

ZERO, ZERO, ZERO, ZERO, ZERO,

ZERO, ZERO, ZERO, ZERO, ZERO,

ZERO, ZERO, ZERO, ZERO, ZERO,

// Space, !, , #, $, %, &, ‘…

ZERO, -.-.–, .-… ZERO, ZERO, ZERO, .—-..,

// ( ) * + , – . /

-.–., -.–.-, NULL, .-.-…, -… –, -….-, .-.-.-…, -… -…,

// 0 1 2 3 4 5 6 7

“—–“, “.—-“, “..—“, “…–“, “….-“, “…..”, “-….”, “–…”,

// 8 9 : ; < = > ?

—…, —-…, —…, ZERO, —… –, NULL, ..–….,

// A B C D E F G/

“.–.-.”, “.-“, “-…”, “-.-.”, “-..”, “.”, “..-.”, “–.”,

// H I J K L M N O/

“….”, “..”, “.—“, “-.-“, “.-..”, “–“, “-.”, “—“,

// P Q R S T U V W

“.–.”, “–.-“, “.-.”, “…”, “-“, “..-“, “…-“, “.–“,

// X Y Z [ ] ^ _

-…-, -.–, –, ZERO, ZERO, …–,

// a b c d e f g/

ZERO, -, -…, -…, -…, -…, -…, -…, -..,

// h i j k l m n o/

“….”, “..”, “.—“, “-.-“, “.-..”, “–“, “-.”, “—“,

// p q r s t u v w

“.–.”, “–.-“, “.-.”, “…”, “-“, “..-“, “…-“, “.–“,

// x y z { } ~ DEL

-…-, -… –, –, ZERO, ZERO, ZERO, ZERO,

};

int dotLength = 50 ;

int dashLength = dotLength*3 ;

void setup() {

// Enter your installation code here which will be executed once:

pinMode(13, OUTPUT) ;

start (9600) ;

}

void loop() {

char ch ;

if(Serial.available()){

ch = Serial.read() ;

flashDashDot(MorseTable[ch]) ;

Delay (stitch length*2) ;

}

}

void flashDashDot(const char * morseCode)

{

int i = 0 ;

while(morseCode[i] != 0)

{

if(morseCode[i] == ‘…’){

point() ;

} otherwise, if (morseCode[i] == ‘-‘){

dash() ;

}

i++ ;

}

}

empty dot()

{

digitalWrite(13, HIGH) ;

Delay(PointLength);

digitalWrite(13, LOW) ;

Delay(PointLength);

}

empty dash()

{

digitalWrite(13, HIGH) ;

Delay(StrokeLength);

digitalWrite(13, LOW) ;

Delay(PointLength);

}

Keypad lock

As we have already seen, the Arduino can be used as a system to secure different kinds of things, for example. B. To lock the computer keyboard. You can also integrate a keyboard into your board to work more comfortably and use more functions. For this project you will need: an Arduino UNO, a 1N4148 semiconductor, contacts, a 74HC595 shift register, a switch and cables. To combine all these elements, you should look at the picture we show you.

Then you can write instructions in the IDE program:

int rowData = 2; // Shift the data register PIN data for the rows

int rowLatch = 3; // Lock the shift register for the rows

int rowClock = 4; // Shift the clock-pen register for the rows

int colA = A0 ;

int colB = A1 ;

int colC = A2 ;

int colD = A3 ;

int colE = A4 ;

int colF = A5 ;

int colG = 5 ;

int colH = 6 ;

byteRijen shift = B111111 ;

previous long millis = 0 ;

large interval = 5 ;

int lastKey = 0 ;

int keyReset = 0 ;

int keysPressed = 0 ;

Woolly hats = fake;

bool rShift = false ;

bool lShift = false ;

Moving the wool = lying ;

bool ctrl = false ;

bool spcl = false ;

bool alt = false ;

bool fn = false ;

void setup() {

start (9600) ;

pinMode(colA, INPUT_PULLUP) ;

pinMode(colB, INPUT_PULLUP) ;

pinMode(colC, INPUT_PULLUP) ;

pinMode(colD, INPUT_PULLUP) ;

pinMode(colE, INPUT_PULLUP) ;

pinMode(colF, INPUT_PULLUP) ;

pinMode(colG, INPUT_PULLUP) ;

pinMode(colH, INPUT_PULLUP) ;

// Outputs needed to drive the 74HC595 shift register

pinMode(rowLatch, OUTPUT) ;

pinMode(rowClock, OUTPUT) ;

pinMode(rowData, OUTPUT) ;

updateShiftRegister(B1111) ;

}

void loop() {

unsigned long currentMillis = millis() ;

if(currentMillis – previousMillis > range) {

previous millis = current millis ;

checkKeyboard() ;

}

}

void updateShiftRegister(byte rows) {

digitalWrite(rowLatch, LOW) ;

shiftOut(rowData, rowClock, MSBFIRST, rows) ;

digitalWrite(rowLatch, HIGH) ;

}

void checkKeyboard() {

keysPreset = 0 ;

updateShiftRegister(B111110) ;

if (digitalRead(colA) == LOW) {

keysPress = keysPress + 1 ;

if (lastKey != 1) {

if (fn == true) {i1}

// no definition of fn

{b1}On the contrary, if (spcl == true) {b0}

// no definition of spcl

Otherwise, if

print() ;

{b1}No, if{b0}

print() ;

} otherwise if ((caps == true) && (shift == true)){

print( ); // if offset is pressed while traffic lock is active.

} otherwise if ((caps == true) || (shift == true)){

print( ); // if one or the other is active, but not both.

Other than that…

print( ) ; // if the modifiers are not active

}

Last key = 1 ;

keyReset = 0 ;

}

}

if (digitalRead(colB) == LOW) {

}

if (digitalRead(colC) == LOW) {

}

if (digitalRead(colD) == LOW) {

}

if (digitalRead(colE) == LOW) {

fn = true ;

Other than that…

fn = false ;

}

if (digitalRead(colF) == LOW) {

}

if (digitalRead(colG) == LOW) {

}

if (digitalRead(colH) == LOW) {

}

//the execution of all necessary procedures must be the lastKey31 or there must be a program with predefined parameters.

keyReset = 0 ;

}

}

if ((lShift) || (rShift)) {

Shift = Truth;

Other than that…

shift = false ;

}

updateShiftRegister(B1111) ;

Reset button = Reset button + 1 ;

if (keyReset > 60) {

lastKey = 0 ;

keyReset = 0 ;

}

if (keysPressed == 0) {

lastKey = 0 ;

}

}

Parking sensor

The goal of this project is to use LEDs to develop a sound and light mechanism that detects the proximity or distance of the car when you want to park. You need an Arduino UNO model, a buzzer, an ultrasonic sensor HC-SR04 and cables to connect the components according to the diagram we showed you.

You must then write these sequences to program your card:

#include

Ultrasound (6.5) ;

// Pin 6 Trigger, Pin 5 Echo

const int buzzer = 7 ;

void setup() {

pinMode(Beep, OUTPUT); // Beep pin

}

void loop(){

int dist = ultrasonic.Ranging(CM) ;

if (dist. < 100) { distance

Tone (buzzer, 1000) ;

Delay (40);

no tone (buzzer) ;

Delay (dist*4);

}

Delay (100);

}

single-legged simulator

If you want to play a board game, but don’t have any dice to do so, you can make your own game with an Arduino. With a 7-segment display, a plate, a push button, 220 and 10k resistors, you can build a cube that gives random numbers from 1 to 6.

Robot arm

You can build a robotic arm that can grasp objects with pliers. In addition, you can add ultrasonic sensors to avoid collisions with obstacles. Making a robotic arm with an Arduino is not very difficult, but it is an effective project.

Flashing lights

With an Arduino board you can create a very simple program to make a LED blink. You will need a 10 kOhm resistor, jumper wires and a common wire. Then connect the components as shown in the figure and finally open the programming platform.

In this software, you will have to write :

Configuration vacía () {

pinMode ( 13 , SALIDA ) ;

}

bucle vacío ()

escritura digital ( 13 , ALTA ) ;

retrazo ( 1,000 ) ;

digitalWrite ( 13 , BAJO ) ;

retrazo ( 1,000 ) ;

Motion amplifier

This project allows you to practice the connections you can make between the Arduino board and other components. You have a device that displays your movements and gestures, and you can increase or decrease the speaker volume.

After receiving the Nano R3 model, the TPA81 8-pixel thermo array, the HC-SR505 PIR action sensor, a common breadboard, a 0.96-inch OLED display, and male and female interconnect cables. To collect all these elements, you should follow the picture we show you.

When everything is ready, you need to write the following sequences in the Arduino programming environment:

#include

#include

// Create a new instance of TPA81.

TPA81 tpa ;

void setup() {

start (9600) ;

// We need to run the wired library to use the TPA81 library.

start() ;

}

void loop() {

// Pressure temperature indicator

print(tpa.getAmbient()) ;

print() ;

// Print all temperature points

for (int i = 1; i <= 8; i++)

{

Print(tpa.getPoint(i)) ;

print() ;

}

println(n) ;

Delay (500);

}

Arduino kits essential for learning to develop hardware from scratch

When you start a project of any kind, the first thing you need to do is have a team to support you in your work.

Therefore, we present you with a list of the most commonly used Arduino kits, so that you can realize your projects with great ease:

Arduino Starter Kit for Beginners K030007

This is one of the most notable because it is the official Arduino starter kit. These articles will help you better understand basic and technical concepts so you can get started in the world of electronics. With this kit, you will be able to design your projects without mistakes.

The parts in the kit are the Arduino UNO Rev3 board, various resistors, a set of buttons, connecting cables, various colored LED lights and sensors, and more. The manual is in Spanish and you can get it for about 95 euros.

ELEGOO ES-EL-KIT-008

ELEGOO’s mission is to create an Arduino starter kit that can be used by any developer, regardless of their level or location in the world.

Generally considered one of the most complete and efficient in the business, it has about 200 materials to work on any project. If you don’t know where to start, don’t worry because there is also a list of over 30 missions. You can get it for 30 to 55 euros, depending on the number of items included.

Mega 2560 Starter Kit Ultra

Another good option for starting a project is the Arduino Mega 2560 Ultra starter kit. It contains some very useful elements, has extra tools to use for basic circuits and simple jobs. Like its two predecessors, it includes step-by-step instructions in Spanish and special CD-ROM tutorials for developing each project. The 220 elements can be bought for about 50 euros.

If you have any questions, leave them in the comments. We will reply to you as soon as possible and this will also be a great help to other members of the community. Thank you.

Author : Mario Jose

As a journalist specializing in investigative journalism, I look for the truth in everything. Today he is 100% focused on technology, computers and the internet.

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