viod setup(){}<\/p>\n
viod loop(){}<\/p>\n
<\/p>\n
\/\/single line comment<\/p>\n
\/*multi-line comment*\/<\/p>\n
<\/p>\n
Unit is ms<\/p>\n
delay(1000);<\/p>\n
<\/p>\n
Instead of using \u201cint led = 13\u201d, use:<\/p>\n
LED_BUILTIN<\/p>\n
<\/p>\n
void setup() {<\/p>\n
Serial.begin(9600);<\/p>\n
}<\/p>\n
void loop() {<\/p>\n
Serial.println(buttonState);<\/p>\n
delay(1);<\/p>\n
}<\/p>\n
<\/p>\n
-32768 to 32768, step of 1 (whole number)<\/p>\n
int pushButton = 2;<\/p>\n
or<\/p>\n
int pushButton;<\/p>\n
pushButton = 2;<\/p>\n
<\/p>\n
With decimal point. Total 7 digit. Very slow.<\/p>\n
float voltage;<\/p>\n
<\/p>\n
If the variable is fixed<\/p>\n
const int led = 13;<\/p>\n
<\/p>\n
int example[]={1,3,5,7};<\/p>\n
example[3];<\/p>\n
<\/p>\n
change X scale to Y scale<\/p>\n
map(X,minX,maxX,minY,maxY);<\/p>\n
<\/p>\n
constrain(value,lowerLimit,upperLimit);<\/p>\n
<\/p>\n
abs();<\/p>\n
min(a,b);<\/p>\n
max(a,b);<\/p>\n
pow(base,exponent) \/\/ 2^4 = pwo(2,4);<\/p>\n
sq();<\/p>\n
sqrt();<\/p>\n
cos(); \u00a0\u00a0\/\/in radian<\/p>\n
sin();\u00a0 \/\/in radian<\/p>\n
tan();\u00a0 \/\/in radian<\/p>\n
random(min,max);<\/p>\n
<\/p>\n
void loop() {<\/p>\n
int analogValue = analogRead(analogPin);<\/p>\n
<\/p>\n
if (analogValue > threshold || analogValue ==44) {<\/p>\n
digitalWrite(ledPin, HIGH);<\/p>\n
} else {<\/p>\n
digitalWrite(ledPin, LOW);<\/p>\n
}<\/p>\n
<\/p>\n
Serial.println(analogValue);<\/p>\n
delay(1);<\/p>\n
}<\/p>\n
<\/p>\n
void setup() {<\/p>\n
for (int thisPin = 2; thisPin < 8; thisPin++) {<\/p>\n
pinMode(thisPin, OUTPUT);<\/p>\n
}<\/p>\n
}<\/p>\n
void loop() {<\/p>\n
for (int thisPin = 2; thisPin < 8; thisPin++) {<\/p>\n
digitalWrite(thisPin, HIGH);<\/p>\n
delay(100);<\/p>\n
digitalWrite(thisPin, LOW);<\/p>\n
}<\/p>\n
}<\/p>\n
<\/p>\n
int pushButton = 2;<\/p>\n
void setup() {<\/p>\n
Serial.begin(9600);<\/p>\n
pinMode(pushButton, INPUT);<\/p>\n
}<\/p>\n
void loop() {<\/p>\n
int buttonState = digitalRead(pushButton);<\/p>\n
Serial.println(buttonState);<\/p>\n
delay(1);<\/p>\n
}<\/p>\n
<\/p>\n
int led = 13;<\/p>\n
viod setup(){<\/p>\n
pinMode(led,OUTPUT);<\/p>\n
}<\/p>\n
viod loop(){<\/p>\n
digitalWrite(led,HIGH);<\/p>\n
delay(1000);<\/p>\n
digitalWrite(led,LOW);<\/p>\n
delay(1000);<\/p>\n
}<\/p>\n
<\/p>\n
Integer value is from 0 to 1023, cover 0V to 5V.<\/p>\n
void setup() {<\/p>\n
Serial.begin(9600);<\/p>\n
}<\/p>\n
void loop() {<\/p>\n
int sensorValue = analogRead(A0);<\/p>\n
float voltage = sensorValue\/1023*5;<\/p>\n
Serial.println(voltage);<\/p>\n
delay(1);<\/p>\n
}<\/p>\n
<\/p>\n
Use the digital port that have PWM marking.<\/p>\n
Duty cycle is from 0 to 255.<\/p>\n
Frequency at 490 Hz.<\/p>\n
int led = 9;<\/p>\n
int dutyCycle = 100;<\/p>\n
<\/p>\n
void setup() {<\/p>\n
pinMode(led, OUTPUT);<\/p>\n
}<\/p>\n
<\/p>\n
void loop() {<\/p>\n
analogWrite(led, dutyCycle);<\/p>\n
}<\/p>\n
<\/p>\n
PWM.h library needs to be included.<\/p>\n
Refer to [3] and [4] to download and install library.<\/p>\n
#include <PWM.h><\/p>\n
int led = 9;\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \/\/ the pin that the LED is attached to<\/p>\n
int32_t frequency = 40000;\u00a0 \/\/ frequency (in Hz)<\/p>\n
int dutyCycle = 150;\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \/\/ range from 0 to 255<\/p>\n
void setup()<\/p>\n
{<\/p>\n
InitTimersSafe();<\/p>\n
bool success = SetPinFrequencySafe(led, frequency);<\/p>\n
}<\/p>\n
void loop()<\/p>\n
{<\/p>\n
pwmWrite(led,dutyCycle);<\/p>\n
}<\/p>\n
1.\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Basic 1.1.\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Setup and Loop viod setup(){} viod loop(){} 1.2.\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Comment \/\/single line comment \/*multi-line comment*\/ 1.3.\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Delay Unit is ms delay(1000); 2.\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Hardware 2.1.\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Buildin LED Instead of using \u201cint led = 13\u201d, use: LED_BUILTIN 2.2.\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Serial Monitor void setup() { Serial.begin(9600); } void loop() { Serial.println(buttonState); delay(1); } […]<\/p>\n","protected":false},"author":24954,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[32],"tags":[],"class_list":["post-631","post","type-post","status-publish","format-standard","hentry","category-research-guidance"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/people.utm.my\/razman-ayop\/wp-json\/wp\/v2\/posts\/631","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/people.utm.my\/razman-ayop\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/people.utm.my\/razman-ayop\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/people.utm.my\/razman-ayop\/wp-json\/wp\/v2\/users\/24954"}],"replies":[{"embeddable":true,"href":"https:\/\/people.utm.my\/razman-ayop\/wp-json\/wp\/v2\/comments?post=631"}],"version-history":[{"count":1,"href":"https:\/\/people.utm.my\/razman-ayop\/wp-json\/wp\/v2\/posts\/631\/revisions"}],"predecessor-version":[{"id":636,"href":"https:\/\/people.utm.my\/razman-ayop\/wp-json\/wp\/v2\/posts\/631\/revisions\/636"}],"wp:attachment":[{"href":"https:\/\/people.utm.my\/razman-ayop\/wp-json\/wp\/v2\/media?parent=631"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/people.utm.my\/razman-ayop\/wp-json\/wp\/v2\/categories?post=631"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/people.utm.my\/razman-ayop\/wp-json\/wp\/v2\/tags?post=631"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}