I am attempting to upload my code to the ATTiny85, but whenever I do, I get this error.
Here is the error:
error: ISO C++ forbids declaration of 'str' with no type [-fpermissive]
void sendPronto(const __FlashStringHelper *str, unsigned int times = 1U);
Here is the code:
#include <IRremote.h>
int IRpin = 1;
IRrecv IR(IRpin);
//Motor 1 (Right) Backward Pin
const byte MOTOR1_BWD = 2;
//Motor 1 (Right) Forward Pin
const byte MOTOR1_FWD = 3;
decode_results cmd;
int speedpin = 5;
const byte spd = 255;
void stop() {
digitalWrite(MOTOR1_BWD, LOW);
digitalWrite(MOTOR1_FWD, LOW);
}
void back() {
digitalWrite(MOTOR1_BWD, HIGH);
digitalWrite(MOTOR1_FWD, LOW);
analogWrite(speedpin, spd);
}
void forward() {
digitalWrite(MOTOR1_BWD, LOW);
digitalWrite(MOTOR1_FWD, HIGH);
analogWrite(speedpin, spd);
}
void setup() {
IR.enableIRIn();
pinMode(MOTOR1_BWD, OUTPUT);
pinMode(MOTOR1_FWD, OUTPUT);
digitalWrite(MOTOR1_BWD, LOW);
digitalWrite(MOTOR1_FWD, LOW);
stop();
}
void loop() {
IR.resume();
if (cmd.value == 0xFF906F) {
forward();
}
if (cmd.value == 0xFFA25D) {
stop();
}
if (cmd.value == 0xFFE01F) {
back();
}
}
I copy pasted your code and it compiled just fine for the ATTiny85. Try redownloading that library using the library manager in the IDE
Related
If I remove attachInterrupt(digitalPinToInterrupt(encoder1),readEncoder,RISING); The code works. But once its added, the radio.available doesnt let anything under it run.
#include <SPI.h>
#include <nRF24L01.h>
#include <RF24.h>
RF24 radio(7, 8); // CE, CSN
const byte address[6] = "00001";
struct InputData // define stuct
{
int x;
int y;
};
InputData data;
// Motor A connections
int motor_enA = 9;
int motor_in1 = 10;
int motor_in2 = 6;
int encoder1 = 2;
int encoder2 = 3;
int counter = 0;
int angle = 0;
void setup() {
Serial.begin(9600);
radio.begin();
radio.openReadingPipe(1, address);
radio.setPALevel(RF24_PA_MIN);
radio.startListening();
// Set all the motor control pins to outputs
pinMode(motor_enA, OUTPUT);
pinMode(motor_in1, OUTPUT);
pinMode(motor_in2, OUTPUT);
// Turn off motors - Initial state
digitalWrite(motor_in1, LOW);
digitalWrite(motor_in2, LOW);
analogWrite(motor_enA, 255);
pinMode (encoder1, INPUT);
pinMode (encoder2, INPUT);
attachInterrupt(digitalPinToInterrupt(encoder1),readEncoder,RISING);
}
void loop() {
readEncoder();
if (radio.available()) {
radio.read(&data, sizeof(data));
// Serial.println(data.y);
if (data.y > 5) {
digitalWrite(motor_in1, HIGH);
digitalWrite(motor_in2, LOW);
}
else if (data.y < -5) {
digitalWrite(motor_in1, LOW);
digitalWrite(motor_in2, HIGH);
}
else {
digitalWrite(motor_in1, LOW);
digitalWrite(motor_in2, LOW);
}
}
if(counter>1){
counter=0;
angle+=2;
}else if(counter<-1){
counter=0;
angle-=2;
}
Serial.print("Position: ");
Serial.println(angle);
}
void readEncoder()
{
if(digitalRead(encoder1)==HIGH){
int b = digitalRead(encoder2);
if(b>0){
counter++;
}
else{
counter--;
}
}
}
I have tried removing and adding the line, as described above^^
as mentioned by Hcheung, make counter volatile and remove readEncoder(); from loop.
I simplify a bit ISR readEncoder();
volatile int counter = 0;
[....]
void readEncoder() {
//if(digitalRead(encoder1)==HIGH){ //we are precisely here because digitalRead(encoder1) = HIGH !
if(digitalRead(encoder2)) counter++;
else counter--;
}
I have these two sets of code and they both run fine on their own, but when I am trying to merge them together I am getting a ton of error messages. I'm new to coding and don't really know a whole lot so I was wondering if someone could just quickly look it over and see what's wrong. The compiler is saying that there is an expected unqualified id before the '{' token at the bottom where I have the code for the pushbutton. However I have tried and removed this and then I get the same message but instead of '{' it says 'if'
Thank you very much
EDIT: I don't know what properly formatting an error message looks like but here is my attempt:
Complete_Code:69:1: error: expected unqualified-id before '{' token
{
^
exit status 1
expected unqualified-id before '{' token
Here is the code in question
int pinButton = 5;
#include <Servo.h>
int servo1Pin = 8;
Servo servo1;
#include <Servo.h>
#define mainArm 0
#define jib 1
#define bucket 2
#define slew 3
Servo servo[2]; //code used for attaching upto 4 servos
byte angle[2] = {90, 90}; // middle point for servo angle
byte potPin[2] = {A1, A2}; // input pins to attach your potentiometers
byte servoPin[2] = {7, 6};
void setup() {
Serial.begin(9600);
Serial.println("Starting DiggerCode.ino");
for (byte n = 0; n < 4; n++) {
servo[n].attach(servoPin[n]);
}
pinMode(pinButton, INPUT);
pinMode(12, OUTPUT); //red LED
pinMode(11, OUTPUT); // yellow LED
pinMode(10, OUTPUT); // green LED
servo1.attach(servo1Pin);
}
void loop() {
readPotentiometers();
moveServos();
delay(10);
}
void readPotentiometers() {
int potVal;
for (byte n = 0; n < 4; n++) {
potVal = analogRead(potPin[n]);
if (potVal < 200) { // dead zone for the joystick I used is 200 to 550.
angle[n] += 1;
if (angle[n] > 170) {
angle[n] = 170;
}
}
if (potVal > 550) { // deadzone upper value
angle[n] -= 1;
if (angle[n] < 10) {
angle[n] = 10;
}
}
}
}
void moveServos() {
for (byte n = 0; n < 4; n++) {
servo[n].write(angle[n]);
}
}
{
int stateButton = digitalRead(pinButton); //read the state of the button
if (stateButton == HIGH) { //if is pressed
Serial.println("Switch = High");
digitalWrite(12, HIGH);
delay(1000);
digitalWrite(12, LOW);
digitalWrite(11, HIGH);
delay(1000);
digitalWrite(11, LOW);
digitalWrite(10, HIGH);
delay(1000);
digitalWrite(10, LOW);
delay(500);
servo1.write(180);
delay(1000);
// Make servo go to 180 degrees
servo1.write(90);
delay(1000);
servo1.write(180);
}
}
It seems you dropped the first things of function definition for some reason.
Add function return type, name and arguments for example
void anImportedFunction()
Before the part starting from
{
int stateButton = digitalRead(pinButton); //read the state of the button
You may also need to call the added function from somewhere.
I looked through your code and edited, some unnecessary and missing parts.
I checked it, no more syntax errors. I think it must work.
#include <Servo.h>
#define mainArm 0
#define jib 1
#define bucket 2
#define slew 3
Servo servo1;
Servo servo[4]; //code used for attaching upto 4 servos
int pinButton = 5;
int servo1Pin = 8;
byte angle[2] = {90, 90}; // middle point for servo angle
byte potPin[2] = {A1, A2}; // input pins to attach your potentiometers
byte servoPin[2] = {7, 6};
void setup() {
Serial.begin(9600);
Serial.println("Starting DiggerCode.ino");
for (byte n = 0; n <= 4; n++) {
servo[n].attach(servoPin[n]);
}
pinMode(pinButton, INPUT);
pinMode(12, OUTPUT); //red LED
pinMode(11, OUTPUT); // yellow LED
pinMode(10, OUTPUT); // green LED
servo1.attach(servo1Pin);
}
void loop() {
readPotentiometers();
moveServos();
delay(10);
}
void readPotentiometers() {
int potVal;
for (byte n = 0; n <= 4; n++) {
potVal = analogRead(potPin[n]);
if (potVal < 200) { // dead zone for the joystick I used is 200 to 550.
angle[n] += 1;
if (angle[n] > 170) {
angle[n] = 170;
}
}
if (potVal > 550) { // deadzone upper value
angle[n] -= 1;
if (angle[n] < 10) {
angle[n] = 10;
}
}
}
}
void moveServos() {
for (byte n = 0; n <= 4; n++) {
servo[n].write(angle[n]);
}
}
void Switch() //here instead of "Switch" you can use any function name you want
{
int stateButton = digitalRead(pinButton); //read the state of the button
if (stateButton == HIGH) { //if is pressed
Serial.println("Switch = High");
digitalWrite(12, HIGH);
delay(1000);
digitalWrite(12, LOW);
digitalWrite(11, HIGH);
delay(1000);
digitalWrite(11, LOW);
digitalWrite(10, HIGH);
delay(1000);
digitalWrite(10, LOW);
delay(500);
servo1.write(180);
delay(1000);
// Make servo go to 180 degrees
servo1.write(90);
delay(1000);
servo1.write(180);
}
}
I wanted to build an object avoiding robot and copied this store from pastebin. Now when I upload the code I get an error like this.
Arduino: 1.8.13 (Windows 10), Board: "Arduino Uno"
C:\Users\Pranay\Documents\Arduino\libraries\Arduino_New_Ping-master\src\NewPing.cpp:35:16: warning: ISO C++ forbids declaration of 'begin' with no type [-fpermissive]
NewPing::begin() {
^
C:\Users\Pranay\Documents\Arduino\libraries\Arduino_New_Ping-master\src\NewPing.cpp:35:1: error: prototype for 'int NewPing::begin()' does not match any in class 'NewPing'
NewPing::begin() {
^~~~~~~
In file included from C:\Users\Pranay\Documents\Arduino\libraries\Arduino_New_Ping-master\src\NewPing.cpp:8:0:
C:\Users\Pranay\Documents\Arduino\libraries\Arduino_New_Ping-master\src\NewPing.h:213:10: error: candidate is: void NewPing::begin()
void begin();
^~~~~
exit status 1
Error compiling for board Arduino Uno.
Invalid library found in C:\Users\Pranay\Documents\Arduino\libraries\ARDUINO_OBSTACLE_AVOIDING_CAR: no headers files (.h) found in C:\Users\Pranay\Documents\Arduino\libraries\ARDUINO_OBSTACLE_AVOIDING_CAR
This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.
// Before uploading the code you have to install the necessary library//
//AFMotor Library https://learn.adafruit.com/adafruit-motor-shield/library-install //
//NewPing Library https://github.com/eliteio/Arduino_New_Ping.git //
//Servo Library https://github.com/arduino-libraries/Servo.git //
#include <AFMotor.h>
#include <NewPing.h>
#include <Servo.h>
#define TRIG_PIN A0
#define ECHO_PIN A1
#define MAX_DISTANCE 100
#define MAX_SPEED 150 // sets speed of DC motors
#define MAX_SPEED_OFFSET 20
NewPing sonar(TRIG_PIN, ECHO_PIN, MAX_DISTANCE);
AF_DCMotor motor1(1, MOTOR12_64KHZ);
AF_DCMotor motor2(2, MOTOR12_64KHZ);
AF_DCMotor motor3(3, MOTOR34_64KHZ);
AF_DCMotor motor4(4, MOTOR34_64KHZ);
Servo myservo;
boolean goesForward=false;
int distance = 100;
int speedSet = 0;
void setup() {
myservo.attach(10);
myservo.write(115);
delay(2000);
distance = readPing();
delay(100);
distance = readPing();
delay(100);
distance = readPing();
delay(100);
distance = readPing();
delay(100);
}
void loop() {
int distanceR = 0;
int distanceL = 0;
delay(40);
if(distance<=25)
{
moveStop();
delay(100);
moveBackward();
delay(200);
moveStop();
delay(200);
distanceR = lookRight();
delay(200);
distanceL = lookLeft();
delay(200);
if(distanceR>=distanceL)
{
turnRight();
moveStop();
}
else
{
turnLeft();
moveStop();
}
}
else
{
moveForward();
}
distance = readPing();
}
int lookRight()
{
myservo.write(50);
delay(500);
int distance = readPing();
delay(100);
myservo.write(115);
return distance;
}
int lookLeft()
{
myservo.write(170);
delay(500);
int distance = readPing();
delay(100);
myservo.write(115);
return distance;
delay(100);
}
int readPing() {
delay(100);
int cm = sonar.ping_cm();
if(cm==0)
{
cm = 250;
}
return cm;
}
void moveStop() {
motor1.run(RELEASE);
motor2.run(RELEASE);
motor3.run(RELEASE);
motor4.run(RELEASE);
}
void moveForward() {
if(!goesForward)
{
goesForward=true;
motor1.run(FORWARD);
motor2.run(FORWARD);
motor3.run(FORWARD);
motor4.run(FORWARD);
for (speedSet = 0; speedSet < MAX_SPEED; speedSet +=2) // slowly bring the speed up to avoid loading down the batteries too quickly
{
motor1.setSpeed(speedSet);
motor2.setSpeed(speedSet);
motor3.setSpeed(speedSet);
motor4.setSpeed(speedSet);
delay(5);
}
}
}
void moveBackward() {
goesForward=false;
motor1.run(BACKWARD);
motor2.run(BACKWARD);
motor3.run(BACKWARD);
motor4.run(BACKWARD);
for (speedSet = 0; speedSet < MAX_SPEED; speedSet +=2) // slowly bring the speed up to avoid loading down the batteries too quickly
{
motor1.setSpeed(speedSet);
motor2.setSpeed(speedSet);
motor3.setSpeed(speedSet);
motor4.setSpeed(speedSet);
delay(5);
}
}
void turnRight() {
motor1.run(FORWARD);
motor2.run(FORWARD);
motor3.run(BACKWARD);
motor4.run(BACKWARD);
delay(500);
motor1.run(FORWARD);
motor2.run(FORWARD);
motor3.run(FORWARD);
motor4.run(FORWARD);
}
void turnLeft() {
motor1.run(BACKWARD);
motor2.run(BACKWARD);
motor3.run(FORWARD);
motor4.run(FORWARD);
delay(500);
motor1.run(FORWARD);
motor2.run(FORWARD);
motor3.run(FORWARD);
motor4.run(FORWARD);
}
I had installed the servo library new ping library and motor shield library can any one of you please identify what is wrong here please
I have just made an account because of this particular problem I'm having with OpenHAB. I was following a tutorial from this https://openhardwarecoza.wordpress.com/2015/03/29/openhab-mqtt-arduino-and-esp8266-part-3-hardware-arduino-with-ethernet-shield/ site but since the reply there didn't help me. I decided to go to this site.
I have successfully installed OpenHAB and use it. When I turn the switch off and on from both the HTTP page and android device, It works just fine. But when I tried to manual override using a push button on an Arduino. It didn't update the state of the switch in both of them. I'm using windows with OpenHAB version 1.71
The Openhab server notices that there is an update of the state from the push button, but the button in the HTTP page and android device didn't change at all.
I have tested the connection using MQTTlens and it works just fine.
Below is my code
items configuration
Group All
Switch mqttsw1 "Switch 1" (all) {mqtt=">[mymosquitto:/arduino/l1/com:command:off:0],>[mymosquitto:/arduino/l1/com:command:on:1],<[mymosquitto:/arduino/l1/state:state:default]"}
Switch mqttsw2 "Switch 2" (all) {mqtt=">[mymosquitto:/arduino/l2/com:command:off:0],>[mymosquitto:/arduino/l2/com:command:on:1],<[mymosquitto:/arduino/l2/state:state:default]"}
Number temp "Temperature [%.1f °C]" <temperature> {mqtt="<[mymosquitto:/arduino/temp/state:state:default]"}
Number hum "Humidity [%.1f %]" <temperature> {mqtt="<[mymosquitto:/arduino/hum/state:state:default]"}
Sitemap configuration
sitemap dolphin label="Main Menu"
{
Frame label="Switch" {
Switch item=mqttsw1 label="Switch 1"
Switch item=mqttsw2 label="Switch 2"
}
Frame label="Weather" {
Text item=temp
Text item=hum
}
The Arduino Code
#include <SPI.h>
#include <Ethernet.h>
#include <PubSubClient.h>
#include <DHT.h>
const int butt1 = 3;// the pin that the pushbutton is attached to
const int butt2 = 2;
const int ledPin1 = 5;
const int ledPin2 = 4;
int ledState1 = HIGH;
int buttonState1;
int lastButtonState1 = LOW;
int ledState2 = HIGH;
int buttonState2;
int lastButtonState2 = LOW;
long previousMillis = 0;
unsigned long currentMillis = 0;
long interval = 60000; // READING INTERVAL
int t = 0; // TEMPERATURE VAR
int h = 0; // HUMIDITY VAR
#define DHTPIN 24 // SENSOR PIN
#define DHTTYPE DHT11 // SENSOR TYPE - THE ADAFRUIT LIBRARY OFFERS SUPPORT FOR MORE MODELS
DHT dht(DHTPIN, DHTTYPE);
// Update these with values suitable for your network.
byte mac[] = { 0xDE, 0xED, 0xBA, 0xFE, 0xFE, 0xEF };
IPAddress ip(192, 168, 1, 103);
IPAddress server(192, 168, 1, 100);
void callback(char* topic, byte* payload, unsigned int length);
EthernetClient ethClient;
PubSubClient client(server, 1883, callback, ethClient);
void callback(char* topic, byte* payload, unsigned int length) {
Serial.println();
Serial.println("Callback");
Serial.print("Topic = ");
Serial.println(topic);
Serial.print("Payload = ");
for (int i=0;i<length;i++){
Serial.print((char)payload[i]);
}
Serial.println();
if (strcmp(topic,"/esp1/l1/com")==0) {
if (payload[0] == '0')
{
digitalWrite(ledPin1, LOW);
delay(100);
client.publish("/esp1/l1/state","0");
}
else if (payload[0] == '1')
{
digitalWrite(ledPin1, HIGH);
delay(100);
client.publish("/esp1/l1/state","1");
}
}
if (strcmp(topic,"/esp1/l2/com")==0) {
if (payload[0] == '0')
{
digitalWrite(ledPin2, LOW);
delay(100);
client.publish("/esp1/l2/state","0");
}
else if (payload[0] == '1')
{
digitalWrite(ledPin2, HIGH);
delay(100);
client.publish("/esp1/l2/state","1");
}
}
}
void reconnect() {
// Loop until we're reconnected
while (!client.connected()) {
Serial.print("Attempting MQTT connection...");
// Attempt to connect
if (client.connect("arduinoClient")) {
Serial.println("connected");
client.subscribe("/esp1/#");
client.publish("conn","Connected");
} else {
Serial.print("failed, rc=");
Serial.print(client.state());
Serial.println(" try again in 5 seconds");
// Wait 5 seconds before retrying
delay(5000);
}
}
}
void push1() {
int reading1 = digitalRead(butt1);
buttonState1 = reading1;
if (buttonState1 == HIGH) {
ledState1 = !ledState1;
if (ledState1 < 1)
{
digitalWrite(ledPin1, LOW);
delay(100);
client.publish("/esp1/l1/com","0");
client.publish("/esp1/l1/state","0");
}
else
{
digitalWrite(ledPin1, HIGH);
delay(100);
client.publish("/esp1/l1/com","1");
client.publish("/esp1/l1/state","1");
}
}
}
void push2() {
int reading2 = digitalRead(butt2);
buttonState2 = reading2;
if (buttonState2 == HIGH) {
ledState2 = !ledState2;
if (ledState2 < 1)
{
digitalWrite(ledPin2, LOW);
delay(100);
client.publish("/esp1/l2/com","0");
client.publish("/esp1/l2/state","0");
}
else
{
digitalWrite(ledPin2, HIGH);
delay(100);
client.publish("/esp1/l2/com","1");
client.publish("/esp1/l2/state","1");
}
}
}
void temp() {
h = (int)dht.readHumidity();
t = (int)dht.readTemperature();
char temp[2];
char hum[3];
sprintf(hum, "%d", h);
sprintf(temp, "%d", t);
client.publish("/esp1/temp/state", temp);
client.publish("/esp1/hum/state", hum);
}
void setup() {
// put your setup code here, to run once:
pinMode(butt1, INPUT);
pinMode(butt2, INPUT);
// initialize the LED as an output:
pinMode(ledPin1, OUTPUT);
pinMode(ledPin2, OUTPUT);
Serial.begin(9600);
Ethernet.begin(mac, ip);
digitalWrite(ledPin1, LOW);
digitalWrite(ledPin2, LOW);
pinMode(26, OUTPUT); // sets the digital pin as output
pinMode(22, OUTPUT); // sets the digital pin as output
digitalWrite(26, HIGH); // sets +5v for the sensor
digitalWrite(22, LOW); // sets gnd for the sensor
h = (int)dht.readHumidity();
t = (int) dht.readTemperature();
if (client.connect("arduinoClient")) {
client.publish("conn","Connected");
client.subscribe("/esp1/#");
}
}
void loop() {
// put your main code here, to run repeatedly:
if (!client.connected()) {
reconnect();
}
currentMillis = millis();
if (currentMillis - previousMillis > interval) { // READ ONLY ONCE PER INTERVAL
previousMillis = currentMillis;
temp();
}
int reading1 = digitalRead(butt1);
int reading2 = digitalRead(butt2);
if (reading1 != buttonState1) {
push1();
}
if (reading2 != buttonState2){
push2();
}
client.loop();
}
If there are anybody who can help me I would be very grateful. Thank you for your attention !
Best Regards,
Aldi
If I remember correctly you should post back a status of ON or OFF instead of 1 or 0.
Could you change your arduino code to publish back ON and OFF and test that?
e.g.
client.publish("/esp1/l1/state","ON");
new here! been recommended many times to come here for help so here I am.
I'm supposed to write a program that allows me to change the rate of a blinking LED light through the comm port. I'm sure this is easy but I've honestly got no clue as I am behind in this class.
anything would help really, i honestly want to learn how to do this, not just come here and get the answer.
thanks in advanced!
// global variables
#include <EEPROM.h>
unsigned long ms_runtime;
int state;
// possible values 0 -> 1 -> 2 -> 3 -> 0
int one_ms_timer;
// define all timers as unsigned long (they are incremented every 100ms = 0.1s)
unsigned long timer1;
unsigned long button_dbnc_tmr = 0;
// timer1 is used for blinking LED
const int LED1 = 13;
// function prototypes
void read_memory(void);
void update_memory(void);
void comm_control(void);
void led_control(void);
void turnoff(void);
void flash_1s(void);
void flash_2s(void);
void flash_3s(void);
void timers(void);
void setup()
{
read_memory();
pinMode(LED1, OUTPUT);
Serial.begin(9600);
//initialize uart
}
void loop()
{
static bool allow_change;
static int counter;
timers();
comm_control();
led_control();
}
void led_control()
{
switch (state)
{
case 0:
turnoff();
break;
case 1:
flash_1s();
break;
case 2:
flash_2s();
break;
case 3:
flash_3s();
break;
}
}
void turnoff()
{
digitalWrite(LED1, LOW);
}
void flash_1s()
{
if (timer1 < 10)
digitalWrite(LED1, HIGH);
else
{
digitalWrite(LED1, LOW);
if (timer1 >= 20)
timer1 = 0;
}
}
void flash_2s()
{
if (timer1<20)
digitalWrite(LED1, HIGH);
else
{
digitalWrite(LED1, LOW);
if (timer1 >= 30)
timer1 = 0;
}
}
void flash_3s()
{
if (timer1<30)
digitalWrite(LED1, HIGH);
else
{
digitalWrite(LED1, LOW);
if (timer1 >= 40)
timer1 = 0;
}
}
void read_memory()
{
timer1 = EEPROM.read(one_ms_timer);
timer1++;
EEPROM.write(one_ms_timer, timer1);
Serial.begin(9600);
}
void update_memory()
{
EEPROM.update(timer1, one_ms_timer);
}
void comm_control(void);
{
char comm_reveier = serial_read;
if (
)
}
void timers(void)
{
if (millis() > (ms_runtime + 1))
{
ms_runtime = ms_runtime + 1;
one_ms_timer++;
}
else if (ms_runtime > millis())
ms_runtime = millis();
if (one_ms_timer > 99) //every 100 ms
{
one_ms_timer = 0;
button_dbnc_tmr++;
timer1++;
}
}
Load the Standard Firmata library on your Arduino board. Then use a library of your choice to build your comm prog. An overview of these can be found here.
Assuming you are using the Arduino IDE, this code sample should give you the general idea of what you need to do:
// pins for the LEDs:
const int ledPin = 13;
// Default blink rate
int rate = 1000;
void setup() {
// initialize serial:
Serial.begin(9600);
// make the pins outputs:
pinMode(ledPin, OUTPUT);
}
void loop() {
// if there's any serial available, read it:
while (Serial.available() > 0) {
// look for the next valid integer in the incoming serial stream:
int rate = Serial.parseInt();
}
digitalWrite(ledPin, HIGH); // turn the LED on (HIGH is the voltage level)
delay(rate); // wait for a second
digitalWrite(ledPin, LOW); // turn the LED off by making the voltage LOW
delay(rate); // wait for a second
}