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Arduino with RFM69HW control 2 leds code

Arduino with RFM69HW control 2 leds code More

by RoeeBloch 21/09/2015, 5:56 AM

Arduino Smart Home Livolo switch Automatic Random turn on/off

/*
 By Roee Bloch  Livolo Automatic Smart home turn on/off lights between definded hours!

#define lock_time 30 // if it gets to 30 seconds it will shut off/on the light
#define start_time 20 //  it will start operation at 8:00 oclock evening
#define stop_time  23 // till eleven oclock looks good to me

All right Reserved
 Copyright (c) 2015 All Right Reserved, http://www.electronics-freak.com

 This source is subject to the Roee Bloch License.
 Please see the License.txt file for more information.
 All other rights reserved.

 THIS CODE AND INFORMATION ARE PROVIDED "AS IS" WITHOUT WARRANTY OF ANY
 KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
 IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
 PARTICULAR PURPOSE.

 </copyright>
 <author>Roee Bloch</author>
 <email>roeebloch@walla.co.il</email>
 <date>August 2015</date>

 Wifly automatic home control - using Telnet anywhere with home router address
The commands are
                                    c1 activate GPIO4 to '1'
                                    c0 deactive GPIO4 to '0'
                                    c2 unlocked for 3 minuets without feedback after locked
                                    rr read status of gpio4
                                    r0 reset internal counter to zero
//PINS in USE are:
//D4 - relay command
//A4 - RTC DATA
//A5 - RTC CLK
//D6 - Reset pin to Wifly (to Wifly pin 5)
//D10 - RX WIFLY (TX)
//D11 - TX WIFLY (RX)
//
//need to connect resistor in series to change from 5V to 3.3V
//suggest 1K, 2.2K while 2.2K to GND and 1K to D10,D11
//
//
//
//        using timer library from NET
//https://github.com/JChristensen/Timer
//to add it goto Sketch-> import library -> add librarry -> choose the ZIP file
//
//april 2015 - adding I2C RTC
//on NANO A4=DATA, A5=CLK
//another library for RTC:
//RTC DS1307RTC

*/


#include <Wire.h>
#include <Time.h>
#include <DS1307RTC.h>
#include <livolo.h>
#define SIGNAL_IN 0 // INTERRUPT 0 = DIGITAL PIN 2 - use the interrupt number in attachInterrupt
#define lock_time 30 // if it gets to 30 seconds it will shut off/on the light
#define start_time 20 //  it will start operation at 8:00 oclock evening
#define stop_time  23 // till eleven oclock looks good to me
volatile byte impulse = 0; // kolejny puls
volatile int bufor[53];
volatile boolean header = false;
volatile unsigned long StartPeriod = 0; // set in the interrupt
volatile boolean stop_ints = false;
Livolo livolo(8); // transmitter connected to pin #8
unsigned char mytime, myhours;
char rxtx = 0; // reading digital pin 3 if zero will be ceceiver if 1 transmitter
int my_lock_time = lock_time; // convert it to INT this is how it works
int my_start_time = start_time; // convert it to INT this is how it works
int my_stop_time = stop_time; // convert it to INT this is how it works
char one_transmission_flag = 0;
void setup() {
  Serial.begin(9600);
  pinMode(3, INPUT);
  pinMode(13, OUTPUT); // on board LED
  attachInterrupt(SIGNAL_IN, calcInput, CHANGE);
  while (!Serial) ; // wait for serial
  delay(200);
  Serial.println("DS1307RTC Read Test");
  Serial.println("-------------------");
  livolo.sendButton(2011, 106); // all lights off code
}

void loop() {


  tmElements_t tm;


  if (RTC.read(tm)) {
    Serial.print("Ok, Time = ");
    print2digits(tm.Hour);
    Serial.write(':');
    print2digits(tm.Minute);
    Serial.write(':');
    print2digits(tm.Second);
    Serial.print(", Date (D/M/Y) = ");
    Serial.print(tm.Day);
    Serial.write('/');
    Serial.print(tm.Month);
    Serial.write('/');
    Serial.print(tmYearToCalendar(tm.Year));
    Serial.println();
    mytime = tm.Second;
    myhours = (tm.Hour);
    Serial.println(mytime);
    Serial.print("hours is:");
    Serial.println(myhours);

    if ((myhours > my_start_time - 1) && (myhours < my_stop_time))
    {
      Serial.println("Working ......");
      one_transmission_flag = 0;
      if ((mytime == my_lock_time) || ((mytime + 1) == my_lock_time))
      {
        tx_onoff_light(random(3)); // pick random light

      }

    }
    else
    {
      if (one_transmission_flag == 0)
      {
        Serial.println("transmitting OFF");
        one_transmission_flag = 1;
        livolo.sendButton(2011, 106); // all lights off code
      }

    }

  } else {
    if (RTC.chipPresent()) {
      Serial.println("The DS1307 is stopped.  Please run the SetTime");
      Serial.println("example to initialize the time and begin running.");
      Serial.println();
    } else {
      Serial.println("DS1307 read error!  Please check the circuitry.");
      Serial.println();
    }
    delay(9000);
  }
  delay(1000);

}

void print2digits(int number) {
  if (number >= 0 && number < 10) {
    Serial.write('0');
  }
  Serial.print(number);
}
void calcInput()
{
  // get the time using micros
  unsigned int duration = (int)(micros() - StartPeriod); // save pulse length to bufor
  StartPeriod = micros(); //begin next impulse
  //Serial.println(StartPeriod);
  if (stop_ints) return;
  if ((duration < 90) || (duration > 600)) goto reset; //impulse not right
  bufor[impulse++] = duration;
  if (duration < 415) return;
  if (!header)
  {
    header = true;
    impulse = 0;
    return;
  }
  else
  {
    if ((impulse < 23) || (impulse > 52)) goto reset; //too long or too short info
    stop_ints = true;
    return;
  }
reset:
  header = false;
  impulse = 0;
  return;
}
void txrx_blink(char param)
{
  int mydelay;
  char myloop;
  if (param == 0) // Receiver
  {
    mydelay = 500;
    myloop = 2;
  }
  else
  {
    mydelay = 100;
    myloop = 3;
  }
  for (int i = 0; i < myloop; i++)
  {
    digitalWrite(13, 1);
    delay(mydelay);
    digitalWrite(13, 0);
    delay(mydelay);
  }

}
void receiver()
{

  while (1)

  {
    if (stop_ints) //data in buffer
    {
      unsigned long binary = 1;
      //byte i = 0;
      for (byte j = 0; j < 46; j++)
      {
        //Serial.print(binary);
        if ((bufor[j] > 220) &&
            (bufor[j] < 400))
        {
          binary <<= 1;
          //binary |= 1;
          //i++;
          bitSet(binary, 0);
        }
        else if ((bufor[j] > 90) &&
                 (bufor[j] < 220) && (bufor[j + 1] > 90) &&
                 (bufor[j + 1] < 220)) {
          binary <<= 1;
          j++;

        }
        else if ((bufor[j] > 90) &&
                 (bufor[j] < 220) && (bufor[j + 1] > 220) &&
                 (bufor[j + 1] < 400)) {
          binary <<= 1;
          bitSet(binary, 0);
          //i += 2;
          j++;
        }
        else break;
      }
      //Serial.println(bitRead(binary,4));
      if (bitRead(binary, 23))
      {
        bitClear(binary, 23);
        Serial.print("remoteID:");
        Serial.print((binary / 128) & 65535);
        Serial.print(" - ");
        Serial.print("key code:");
        Serial.println(binary & 127);
      }
      else {
        Serial.println("wrong code  ");
        Serial.println(binary, BIN);
      }
      delay (1000);
      txrx_blink(1);
      header = false;
      impulse = 0;
      stop_ints = false;

      // }
    }
  }
}
void transmit() // not in use this is part of other program
{
  while (1)
  {
    // livolo.sendButton(6400, 120); // blink button #3 every 3 seconds using remote with remoteID #6400
    txrx_blink(0);
    delay(2000);
    Serial.println("Transmitting key 1 NOW...");
    livolo.sendButton(2011, 0); // my key 1
    txrx_blink(0);
    delay(2000);
    Serial.println("Transmitting key 2 NOW...");
    livolo.sendButton(2011, 96); // my key 2
    txrx_blink(0);
    delay(2000);
    Serial.println("Transmitting key 3 NOW...");
    livolo.sendButton(2011, 120); // my key 3

  }

}

void tx_onoff_light(int x) // switch on/off button by value every number is different light
{
  Serial.print("Transmitting now on/off....");
  Serial.println(x);
  switch (x)
  {
    case 1:
      livolo.sendButton(2011, 0); // my key 1
      break;
    case 2:
      livolo.sendButton(2011, 96); // my key 2
      break;
    case 3:
      livolo.sendButton(2011, 120); // my key 3
      break;
  }

}

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By Roee Bloch Livolo Automatic Smart home turn on/off lights between definded hours!

#define lock_time 30 // if it gets to 30 seconds it will shut off/on the light

#define start_time 20 // it will start operation at 8:00 oclock evening

#define stop_time 23 // till eleven oclock looks good to me

This source is subject to the Roee Bloch License.

Please see the License.txt file for more information.

All other rights reserved.

THIS CODE AND INFORMATION ARE PROVIDED "AS IS" WITHOUT WARRANTY OF ANY

KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE

IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A

PARTICULAR PURPOSE.

</copyright>

<author>Roee Bloch</author>

<email>roeebloch@walla.co.il</email>

<date>August 2015</date>

Wifly automatic home control - using Telnet anywhere with home router address

The commands are

c1 activate GPIO4 to '1'

c0 deactive GPIO4 to '0'

c2 unlocked for 3 minuets without feedback after locked

rr read status of gpio4

r0 reset internal counter to zero

//PINS in USE are:

//D4 - relay command

//A4 - RTC DATA

//A5 - RTC CLK

//D6 - Reset pin to Wifly (to Wifly pin 5)

//D10 - RX WIFLY (TX)

//D11 - TX WIFLY (RX)

//need to connect resistor in series to change from 5V to 3.3V

//suggest 1K, 2.2K while 2.2K to GND and 1K to D10,D11

// using timer library from NET

//https://github.com/JChristensen/Timer

//to add it goto Sketch-> import library -> add librarry -> choose the ZIP file

//april 2015 - adding I2C RTC

//on NANO A4=DATA, A5=CLK

//another library for RTC:

//RTC DS1307RTC

#include <Wire.h>

#include <Time.h>

#include <DS1307RTC.h>

#include <livolo.h>

#define SIGNAL_IN 0 // INTERRUPT 0 = DIGITAL PIN 2 - use the interrupt number in attachInterrupt

#define lock_time 30 // if it gets to 30 seconds it will shut off/on the light

#define start_time 20 // it will start operation at 8:00 oclock evening

#define stop_time 23 // till eleven oclock looks good to me

volatile byte impulse = 0; // kolejny puls

volatile int bufor[53];

volatile boolean header = false;

volatile unsigned long StartPeriod = 0; // set in the interrupt

volatile boolean stop_ints = false;

Livolo livolo(8); // transmitter connected to pin #8

unsigned char mytime, myhours;

char rxtx = 0; // reading digital pin 3 if zero will be ceceiver if 1 transmitter

int my_lock_time = lock_time; // convert it to INT this is how it works

int my_start_time = start_time; // convert it to INT this is how it works

int my_stop_time = stop_time; // convert it to INT this is how it works

char one_transmission_flag = 0;

void setup() {

Serial.begin(9600);

pinMode(3, INPUT);

pinMode(13, OUTPUT); // on board LED

attachInterrupt(SIGNAL_IN, calcInput, CHANGE);

while (!Serial) ; // wait for serial

delay(200);

Serial.println("DS1307RTC Read Test");

Serial.println("-------------------");

livolo.sendButton(2011, 106); // all lights off code

}

void loop() {

tmElements_t tm;

if (RTC.read(tm)) {

Serial.print("Ok, Time = ");

print2digits(tm.Hour);

Serial.write(':');

print2digits(tm.Minute);

Serial.write(':');

print2digits(tm.Second);

Serial.print(", Date (D/M/Y) = ");

Serial.print(tm.Day);

Serial.write('/');

Serial.print(tm.Month);

Serial.write('/');

Serial.print(tmYearToCalendar(tm.Year));

Serial.println();

mytime = tm.Second;

myhours = (tm.Hour);

Serial.println(mytime);

Serial.print("hours is:");

Serial.println(myhours);

if ((myhours > my_start_time - 1) && (myhours < my_stop_time))

{

Serial.println("Working ......");

one_transmission_flag = 0;

if ((mytime == my_lock_time) || ((mytime + 1) == my_lock_time))

{

tx_onoff_light(random(3)); // pick random light

}

else

{

if (one_transmission_flag == 0)

{

Serial.println("transmitting OFF");

one_transmission_flag = 1;

livolo.sendButton(2011, 106); // all lights off code

}

} else {

if (RTC.chipPresent()) {

Serial.println("The DS1307 is stopped. Please run the SetTime");

Serial.println("example to initialize the time and begin running.");

Serial.println();

} else {

Serial.println("DS1307 read error! Please check the circuitry.");

Serial.println();

}

delay(9000);

}

delay(1000);

}

void print2digits(int number) {

if (number >= 0 && number < 10) {

Serial.write('0');

}

Serial.print(number);

}

void calcInput()

{

// get the time using micros

unsigned int duration = (int)(micros() - StartPeriod); // save pulse length to bufor

StartPeriod = micros(); //begin next impulse

//Serial.println(StartPeriod);

if (stop_ints) return;

if ((duration < 90) || (duration > 600)) goto reset; //impulse not right

bufor[impulse++] = duration;

if (duration < 415) return;

if (!header)

{

header = true;

impulse = 0;

return;

}

else

{

if ((impulse < 23) || (impulse > 52)) goto reset; //too long or too short info

stop_ints = true;

return;

}

reset:

header = false;

impulse = 0;

return;

}

void txrx_blink(char param)

{

int mydelay;

char myloop;

if (param == 0) // Receiver

{

mydelay = 500;

myloop = 2;

}

else

{

mydelay = 100;

myloop = 3;

}

for (int i = 0; i < myloop; i++)

{

digitalWrite(13, 1);

delay(mydelay);

digitalWrite(13, 0);

delay(mydelay);

}

void receiver()

{

while (1)

{

if (stop_ints) //data in buffer

{

unsigned long binary = 1;

//byte i = 0;

for (byte j = 0; j < 46; j++)

{

//Serial.print(binary);

if ((bufor[j] > 220) &&

(bufor[j] < 400))

{

binary <<= 1;

//binary |= 1;

//i++;

bitSet(binary, 0);

}

else if ((bufor[j] > 90) &&

(bufor[j] < 220) && (bufor[j + 1] > 90) &&

(bufor[j + 1] < 220)) {

binary <<= 1;

j++;

}

else if ((bufor[j] > 90) &&

(bufor[j] < 220) && (bufor[j + 1] > 220) &&

(bufor[j + 1] < 400)) {

binary <<= 1;

bitSet(binary, 0);

//i += 2;

j++;

}

else break;

}

//Serial.println(bitRead(binary,4));

if (bitRead(binary, 23))

{

bitClear(binary, 23);

Serial.print("remoteID:");

Serial.print((binary / 128) & 65535);

Serial.print(" - ");

Serial.print("key code:");

Serial.println(binary & 127);

}

else {

Serial.println("wrong code ");

Serial.println(binary, BIN);

}

delay (1000);

txrx_blink(1);

header = false;

impulse = 0;

stop_ints = false;

// }

}

void transmit() // not in use this is part of other program

{

while (1)

{

// livolo.sendButton(6400, 120); // blink button #3 every 3 seconds using remote with remoteID #6400

txrx_blink(0);

delay(2000);

Serial.println("Transmitting key 1 NOW...");

livolo.sendButton(2011, 0); // my key 1

txrx_blink(0);

delay(2000);

Serial.println("Transmitting key 2 NOW...");

livolo.sendButton(2011, 96); // my key 2

txrx_blink(0);

delay(2000);

Serial.println("Transmitting key 3 NOW...");

livolo.sendButton(2011, 120); // my key 3

}

void tx_onoff_light(int x) // switch on/off button by value every number is different light

{

Serial.print("Transmitting now on/off....");

Serial.println(x);

switch (x)

{

case 1:

livolo.sendButton(2011, 0); // my key 1

break;

case 2:

livolo.sendButton(2011, 96); // my key 2

break;

case 3:

livolo.sendButton(2011, 120); // my key 3

break;

}

This Program is doing automatic on/off randomly, all you have to do is set the number of switch that you have and the time limits (start time and stop time) – between those times, it will automatically control the lights. This uses the following: Arduino Uno board RTC DS1307 board – real time […] More

in Code Examples

Fish Feeder Improved Code

/*
 By Roee Bloch  Fish feeder improved
All right Reserved
 Copyright (c) 2015 All Right Reserved, http://www.electronics-freak.com

 This source is subject to the Roee Bloch License.
 Please see the License.txt file for more information.
 All other rights reserved.

 THIS CODE AND INFORMATION ARE PROVIDED "AS IS" WITHOUT WARRANTY OF ANY
 KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
 IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
 PARTICULAR PURPOSE.

 </copyright>
 <author>Roee Bloch</author>
 <email>roeebloch@walla.co.il</email>
 <date>August 2015</date>

also took servo from here:
 Controlling a servo position using a potentiometer (variable resistor)
 by Michal Rinott <http://people.interaction-ivrea.it/m.rinott>

 modified on 8 Nov 2013
 by Scott Fitzgerald
 http://www.arduino.cc/en/Tutorial/Knob
*/
#include <Servo.h>
#include <EEPROM.h>

Servo myservo;  // create servo object to control a servo

int potpin = 0;  // analog pin used to connect the potentiometer
int val;    // variable to read the value from the analog pin
int time1, time2; // time
int data, degree1;
int first_run = 0;
int minutes, hours;

void setup()
{
  degree1 = EEPROM.read(0); // reading address 0
  myservo.attach(9);  // attaches the servo on pin 9 to the servo object
  delay(50);
  myservo.write(degree1);
  Serial.begin(9600);
  time1 = millis();
  // Serial.println(time1);
}

void loop()
{
  if (first_run == 0) {
    // waiting for reset command 30 seconds
    Serial.println("waiting for Servo reset command to ZERO degrees, hours and minutes, press 'r' and ENTER to RESET");
    time2 = millis();
    while ((time2 - time1) < 10000) // we are in first 30 seconds waiting for commands
    {
      data = Serial.read();
      if (Serial.available() > 0) {
        // read the incoming byte:
        data = Serial.read();

        // say what you got:
        Serial.print("I received: ");
        Serial.println(data, DEC);
        if (data == 114)
        {
          Serial.println("Reset to Zero degrees now and eeprom");
          EEPROM.write(0, 0); // wiriting address 0 value 0 // not in use now
          EEPROM.write(1, 0); // reseting hours
          EEPROM.write(2, 0); // reseting minutes
        }
        Serial.flush();
      }

      time2 = millis();
    }
    Serial.println("Time passed - code continue");
    first_run = 1;
  }
  hours = EEPROM.read(1); // reading hours
  minutes = EEPROM.read(2); // reading hours
  Serial.println("hours that passed");
  Serial.println(hours);
  Serial.println("minutes that passed");
  Serial.println(minutes);
  if (hours == 23)
  {
    Serial.println("Reseting hours to ZERO");
    hours = 0;
  }
  if (minutes == 59)
  {
    Serial.println("Reseting minutes to ZERO");
    minutes = 0;
  }

  while(1) // never ending loop
  {
     wait_day();
    for (int x=0; x<4;x++)
    {
    myservo.write(0);                  // sets the servo position to 0
    delay(1000);
    myservo.write(180); 
    delay(1000);
     myservo.write(0); 
      delay(1000);
    }

   
  }

}
void wait_day()
{

  for (int y = hours; y < 24; y++) //counting 24 hours
  {
    EEPROM.write(1, y); // saving hours
    for (int x = minutes; x < 60; x++) //minutes delay
    {
      EEPROM.write(2, x); // saving hours
      delay(60000);
//    delay(15); //for debug
    }
  }
  Serial.println("day passed!");
  //reseting hours and minutes now
  hours = 0;
  minutes = 0;
}

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By Roee Bloch Fish feeder improved

This source is subject to the Roee Bloch License.

Please see the License.txt file for more information.

All other rights reserved.

THIS CODE AND INFORMATION ARE PROVIDED "AS IS" WITHOUT WARRANTY OF ANY

KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE

IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A

PARTICULAR PURPOSE.

</copyright>

<author>Roee Bloch</author>

<email>roeebloch@walla.co.il</email>

<date>August 2015</date>

also took servo from here:

Controlling a servo position using a potentiometer (variable resistor)

by Michal Rinott <http://people.interaction-ivrea.it/m.rinott>

modified on 8 Nov 2013

by Scott Fitzgerald

http://www.arduino.cc/en/Tutorial/Knob

#include <Servo.h>

#include <EEPROM.h>

Servo myservo; // create servo object to control a servo

int potpin = 0; // analog pin used to connect the potentiometer

int val; // variable to read the value from the analog pin

int time1, time2; // time

int data, degree1;

int first_run = 0;

int minutes, hours;

void setup()

{

degree1 = EEPROM.read(0); // reading address 0

myservo.attach(9); // attaches the servo on pin 9 to the servo object

delay(50);

myservo.write(degree1);

Serial.begin(9600);

time1 = millis();

// Serial.println(time1);

}

void loop()

{

if (first_run == 0) {

// waiting for reset command 30 seconds

Serial.println("waiting for Servo reset command to ZERO degrees, hours and minutes, press 'r' and ENTER to RESET");

time2 = millis();

while ((time2 - time1) < 10000) // we are in first 30 seconds waiting for commands

{

data = Serial.read();

if (Serial.available() > 0) {

// read the incoming byte:

data = Serial.read();

// say what you got:

Serial.print("I received: ");

Serial.println(data, DEC);

if (data == 114)

{

Serial.println("Reset to Zero degrees now and eeprom");

EEPROM.write(0, 0); // wiriting address 0 value 0 // not in use now

EEPROM.write(1, 0); // reseting hours

EEPROM.write(2, 0); // reseting minutes

}

Serial.flush();

}

time2 = millis();

}

Serial.println("Time passed - code continue");

first_run = 1;

}

hours = EEPROM.read(1); // reading hours

minutes = EEPROM.read(2); // reading hours

Serial.println("hours that passed");

Serial.println(hours);

Serial.println("minutes that passed");

Serial.println(minutes);

if (hours == 23)

{

Serial.println("Reseting hours to ZERO");

hours = 0;

}

if (minutes == 59)

{

Serial.println("Reseting minutes to ZERO");

minutes = 0;

}

while(1) // never ending loop

{

wait_day();

for (int x=0; x<4;x++)

{

myservo.write(0); // sets the servo position to 0

delay(1000);

myservo.write(180);

delay(1000);

myservo.write(0);

delay(1000);

}

void wait_day()

{

for (int y = hours; y < 24; y++) //counting 24 hours

{

EEPROM.write(1, y); // saving hours

for (int x = minutes; x < 60; x++) //minutes delay

{

EEPROM.write(2, x); // saving hours

delay(60000);

// delay(15); //for debug

}

Serial.println("day passed!");

//reseting hours and minutes now

hours = 0;

minutes = 0;

}

This code uses Servo motor, and just 2 holes in circular plastic box Every 24 hours that box will rotate 4 times throwing food out of holes if there was electricity power off – when the power on again it will continue from last time Since it saves hours and minutes to ARDUINO memory […] More

in Code Examples

Arduino Remote Controlled Car Code

Arduino Remote Controlled Car Code More

by RoeeBloch 10/07/2015, 7:38 PM
in Code Examples

Lesson 14 Arduino Capacitor Meter Code

Lesson 14 Arduino Capacitor Meter Code More

by RoeeBloch 10/07/2015, 11:00 AM

in Code Examples

Lesson 13 Resistor Meter code

// By Roee Bloch  Resistor-Meter
//All right Reserved
// Copyright (c) 2015 All Right Reserved, http://www.electronics-freak.com
//
// This source is subject to the Roee Bloch License.
// Please see the License.txt file for more information.
// All other rights reserved.
//
// THIS CODE AND INFORMATION ARE PROVIDED "AS IS" WITHOUT WARRANTY OF ANY
// KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
// PARTICULAR PURPOSE.
//
// </copyright>
// <author>Roee Bloch</author>
// <email>roeebloch@walla.co.il</email>
// <date>June 2015</date>
/*
Part of the CODE is LCD Taken from:

 Library originally added 18 Apr 2008
 by David A. Mellis
 library modified 5 Jul 2009
 by Limor Fried (http://www.ladyada.net)
 example added 9 Jul 2009
 by Tom Igoe
 modified 22 Nov 2010
 by Tom Igoe

 Formulas in use are:
 R(measured) = (RKnown(VCC-Vmeasured))/VMeasured
 V(measured) = ((ADC VALUE)/1024)*VCC

*/

#include <LiquidCrystal.h>

#define analog_in 1 // define analog input pin in use
#define VCC 5 //define VCC for calculation
#define R_known 46700 // define Reference resistor in use, I have found this value is very good to many measurements, but if you have another resistor you may change this value according
float R_measured, V_measured, R_measK ;
int analog_read;
char flag = 0;

// initialize the library with the numbers of the interface pins
LiquidCrystal lcd(8, 9, 4, 5, 6, 7);

void setup()
{
  Serial.begin(57600);
  Serial.println("Starting");
  lcd.begin(16, 2);
  lcd.print("Resistor Meter");
}
void loop()
{
  analog_read = analogRead(analog_in);
  while (analog_read == 0) {
    if (0 == flag)
    {
      Serial.println("Please connect resistor");
      lcd.setCursor(0, 1);
      lcd.print("Connect Resistor");
      flag = 1;
    }
    analog_read = analogRead(analog_in);
  }
  flag = 0;  // this is in order to print message connect resistor once only!
  V_measured = (analog_read) * VCC; // this is voltage *1024 since we did not divide by 1024
  V_measured = V_measured / 1024.0;
  R_measured = (R_known * (VCC - V_measured)) / V_measured;
  if (R_measured <= 1000)
  {
    Serial.print("Resistor is:");
    Serial.print(R_measured);
    Serial.println(" ohms");
    myclear();
    lcd.setCursor(0, 1);
    lcd.print("R=");
    lcd.print(R_measured);
    lcd.print(" ohms");
  }
  if (R_measured > 1000)
  {
    Serial.print("Resistor is:");
    R_measK = R_measured / 1000;
    Serial.print((R_measK));
    Serial.println(" K ohms");
    myclear();
    lcd.setCursor(0, 1);
    lcd.print("R=");
    lcd.print(R_measK);
    lcd.print(" K ohms");
  }
  delay(1000);
}
void myprint(float x, String param)
{
  int myprint;
  myprint = (x);
  Serial.print(param);
  Serial.print(" is:");
  Serial.println(myprint);
}
void myclear() // clear all second line
{
  lcd.setCursor(0, 1);
  lcd.print("                ");

}

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// By Roee Bloch Resistor-Meter

// This source is subject to the Roee Bloch License.

// Please see the License.txt file for more information.

// All other rights reserved.

// THIS CODE AND INFORMATION ARE PROVIDED "AS IS" WITHOUT WARRANTY OF ANY

// KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE

// IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A

// PARTICULAR PURPOSE.

// </copyright>

// <author>Roee Bloch</author>

// <email>roeebloch@walla.co.il</email>

// <date>June 2015</date>

Part of the CODE is LCD Taken from:

Library originally added 18 Apr 2008

by David A. Mellis

library modified 5 Jul 2009

by Limor Fried (http://www.ladyada.net)

example added 9 Jul 2009

by Tom Igoe

modified 22 Nov 2010

by Tom Igoe

Formulas in use are:

R(measured) = (RKnown(VCC-Vmeasured))/VMeasured

V(measured) = ((ADC VALUE)/1024)*VCC

#include <LiquidCrystal.h>

#define analog_in 1 // define analog input pin in use

#define VCC 5 //define VCC for calculation

#define R_known 46700 // define Reference resistor in use, I have found this value is very good to many measurements, but if you have another resistor you may change this value according

float R_measured, V_measured, R_measK ;

int analog_read;

char flag = 0;

// initialize the library with the numbers of the interface pins

LiquidCrystal lcd(8, 9, 4, 5, 6, 7);

void setup()

{

Serial.begin(57600);

Serial.println("Starting");

lcd.begin(16, 2);

lcd.print("Resistor Meter");

}

void loop()

{

analog_read = analogRead(analog_in);

while (analog_read == 0) {

if (0 == flag)

{

Serial.println("Please connect resistor");

lcd.setCursor(0, 1);

lcd.print("Connect Resistor");

flag = 1;

}

analog_read = analogRead(analog_in);

}

flag = 0; // this is in order to print message connect resistor once only!

V_measured = (analog_read) * VCC; // this is voltage *1024 since we did not divide by 1024

V_measured = V_measured / 1024.0;

R_measured = (R_known * (VCC - V_measured)) / V_measured;

if (R_measured <= 1000)

{

Serial.print("Resistor is:");

Serial.print(R_measured);

Serial.println(" ohms");

myclear();

lcd.setCursor(0, 1);

lcd.print("R=");

lcd.print(R_measured);

lcd.print(" ohms");

}

if (R_measured > 1000)

{

Serial.print("Resistor is:");

R_measK = R_measured / 1000;

Serial.print((R_measK));

Serial.println(" K ohms");

myclear();

lcd.setCursor(0, 1);

lcd.print("R=");

lcd.print(R_measK);

lcd.print(" K ohms");

}

delay(1000);

}

void myprint(float x, String param)

{

int myprint;

myprint = (x);

Serial.print(param);

Serial.print(" is:");

Serial.println(myprint);

}

void myclear() // clear all second line

{

lcd.setCursor(0, 1);

lcd.print(" ");

}

in Code Examples

Lesson 12 – Logic Gates code

Lesson 12 – Logic Gates code In this Lesson I will teach about LOGIC Gates, with a very FUN and Simple Program. The Program will Light LEDS and Print On Screen According to LOGIC GATES: AND, OR, NOT, NAND (other will be covered in Next lessons) More

by RoeeBloch 01/07/2015, 7:43 PM

in Code Examples

Lesson 11 Christmas Tree lights code Example

This is the Code of Christmas Tree

// By Roee Bloch  CHRISTMAS TREE
//All right Reserved
// Copyright (c) 2015 All Right Reserved, http://www.electronics-freak.com
//
// This source is subject to the Roee Bloch License.
// Please see the License.txt file for more information.
// All other rights reserved.
//
// THIS CODE AND INFORMATION ARE PROVIDED "AS IS" WITHOUT WARRANTY OF ANY
// KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
// PARTICULAR PURPOSE.
//
// </copyright>
// <author>Roee Bloch</author>
// <email>roeebloch@walla.co.il</email>
// <date>June 2015</date>

#define strips 5 // number of strip lamps to be used
#define mydelay 400 // delay of 1000 ms between changes
#define randompin 12 // when this digital pin conneted to GND will run RANDOM PATTERNS


int myrandom, mode = 1; // if mode=0 => random mode 1 is normal
byte cal = 1,my_top;
int num, func_num = 0,top,random_delay;
byte mypins[] = {2, 3, 4, 5, 6, 7, 8, 9};   //maximum 8 outputs for this program from LSB to MSB
void setup()
{
  pinMode(randompin, INPUT);           // set pin to input
  digitalWrite(randompin, HIGH);       // turn on pullup resistors
  Serial.begin(9600);
  if ((strips <= 8) && (strips > 1)) // check if number of Relays is between 2 and 8
  {
    for (int x = 0; x < strips; x++) // decalre all RELAYS as OUTPUTS in one loop
    {
 //     Serial.print("IO=");
 //     Serial.println(int(mypins[x]));
      pinMode (mypins[x], OUTPUT);
    }
  }
  Serial.println("started");
  pinMode (2, OUTPUT);
  top = pow(2, strips)-1; // max number for chosen strips
  my_top=byte(top); // for mask
}
void loop()
{
  digitalWrite(randompin, HIGH);
  if (digitalRead(randompin) == 0) //random mode
  {
    Serial.println("Random mode");
    mode = 0;
    func_num = random(1, 9); // random run
    random_delay= random(1,11)*100;
    Serial.print("Random delay is:");
    Serial.println(random_delay);
  }
  else
  {
    Serial.println("Regular mode");
    mode = 1;
    func_num++; // go pattern one by one 1,2,3,....
    random_delay=mydelay;
  }
  Serial.println(func_num);
  switch (func_num)
  {
    case 1: pattern1();
      break;
    case 2: pattern2();
      break;
    case 3: pattern3();
      break;
    case 4: pattern4();
      break;
    case 5: pattern5();
      break;
    case 6: pattern6();
      break;
    case 7: pattern7();
      break;
    case 8: func_num = 0;
      cal = 1;
      break;
  }
}

void LightLeds(byte x) {
  int mystart;
  String myNumber = String(x, BIN); // convert byte to string in order to work with it easily
  int binLength = myNumber.length();
  if (binLength < 8) {
    digitalWrite(mypins[binLength], 0);
  }
  for (int q = binLength, mystart = 0; q > 0; q--, mystart++)
  {
    if  (myNumber[q - 1] == '1')
    {
      digitalWrite(mypins[mystart], 1); // need to get to correct bit
    }
    else
    {
      digitalWrite(mypins[mystart], 0); // need to get to correct bit
    }
  }
}
void pattern1() // move left
{
  cal=1;
  for (int a = 1; a <= strips; a++)
  {
    LightLeds(cal);
    delay(random_delay);
    cal = cal * 2;
  }
  cal = 1;
  all_off();
}
void pattern2() // move right
{
  cal = pow(2, strips);
  for (int a = strips; a >= 0; a--)
  {
    delay(random_delay);
    cal = cal >> 1;
    LightLeds(cal);
  }
  all_off();
}
void mystop()
{
  Serial.println("stopped");
loop2:
  goto loop2;
}
void all_off()
{
  for (int i = 0; i < 8; i++)
  {
    digitalWrite(mypins[i], 0);
  }
}
void pattern3() //binary up
{
  cal = 1;
  byte limit;
  limit=my_top+1;
//  int top = pow(2, strips);
//  my_top=byte(top); // for mask
  for (int i = 1; i <=limit; i++)
  {
    delay(random_delay);
    cal = i;
    LightLeds(cal);
  }
}
void pattern4() //blink half half
{
  for (int i = 1; i < 6; i++)
  {
    delay(random_delay);
    LightLeds(170 & my_top); // equal to 10101010
    delay(random_delay);
    LightLeds(85  & my_top);// equal to 1010101
  }
  all_off();
}
void pattern5() // blink all together
{
  for (int i = 1; i < 6; i++)
  {
    delay(random_delay);
    LightLeds(my_top);
    delay(random_delay);
    all_off();
  }
}
void pattern6()
{
  for (int i = 1; i < 6; i++) // two and two
  { 
    delay(random_delay);
    LightLeds(204 & my_top);
    delay(random_delay);
    LightLeds(51 & my_top);
  }
  all_off();
}
void pattern7() //binary down
{
  cal = 1;
  for (int i = my_top; i >= 0; i--)
  {
    delay(random_delay);
    cal = i;
    LightLeds(i);
  }
  all_off();
}

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// By Roee Bloch CHRISTMAS TREE

// This source is subject to the Roee Bloch License.

// Please see the License.txt file for more information.

// All other rights reserved.

// THIS CODE AND INFORMATION ARE PROVIDED "AS IS" WITHOUT WARRANTY OF ANY

// KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE

// IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A

// PARTICULAR PURPOSE.

// </copyright>

// <author>Roee Bloch</author>

// <email>roeebloch@walla.co.il</email>

// <date>June 2015</date>

#define strips 5 // number of strip lamps to be used

#define mydelay 400 // delay of 1000 ms between changes

#define randompin 12 // when this digital pin conneted to GND will run RANDOM PATTERNS

int myrandom, mode = 1; // if mode=0 => random mode 1 is normal

byte cal = 1,my_top;

int num, func_num = 0,top,random_delay;

byte mypins[] = {2, 3, 4, 5, 6, 7, 8, 9}; //maximum 8 outputs for this program from LSB to MSB

void setup()

{

pinMode(randompin, INPUT); // set pin to input

digitalWrite(randompin, HIGH); // turn on pullup resistors

Serial.begin(9600);

if ((strips <= 8) && (strips > 1)) // check if number of Relays is between 2 and 8

{

for (int x = 0; x < strips; x++) // decalre all RELAYS as OUTPUTS in one loop

{

// Serial.print("IO=");

// Serial.println(int(mypins[x]));

pinMode (mypins[x], OUTPUT);

}

Serial.println("started");

pinMode (2, OUTPUT);

top = pow(2, strips)-1; // max number for chosen strips

my_top=byte(top); // for mask

}

void loop()

{

digitalWrite(randompin, HIGH);

if (digitalRead(randompin) == 0) //random mode

{

Serial.println("Random mode");

mode = 0;

func_num = random(1, 9); // random run

random_delay= random(1,11)*100;

Serial.print("Random delay is:");

Serial.println(random_delay);

}

else

{

Serial.println("Regular mode");

mode = 1;

func_num++; // go pattern one by one 1,2,3,....

random_delay=mydelay;

}

Serial.println(func_num);

switch (func_num)

{

case 1: pattern1();

break;

case 2: pattern2();

break;

case 3: pattern3();

break;

case 4: pattern4();

break;

case 5: pattern5();

break;

case 6: pattern6();

break;

case 7: pattern7();

break;

case 8: func_num = 0;

cal = 1;

break;

}

void LightLeds(byte x) {

int mystart;

String myNumber = String(x, BIN); // convert byte to string in order to work with it easily

int binLength = myNumber.length();

if (binLength < 8) {

digitalWrite(mypins[binLength], 0);

}

for (int q = binLength, mystart = 0; q > 0; q--, mystart++)

{

if (myNumber[q - 1] == '1')

{

digitalWrite(mypins[mystart], 1); // need to get to correct bit

}

else

{

digitalWrite(mypins[mystart], 0); // need to get to correct bit

}

void pattern1() // move left

{

cal=1;

for (int a = 1; a <= strips; a++)

{

LightLeds(cal);

delay(random_delay);

cal = cal * 2;

}

cal = 1;

all_off();

}

void pattern2() // move right

{

cal = pow(2, strips);

for (int a = strips; a >= 0; a--)

{

delay(random_delay);

cal = cal >> 1;

LightLeds(cal);

}

all_off();

}

void mystop()

{

Serial.println("stopped");

loop2:

goto loop2;

}

void all_off()

{

for (int i = 0; i < 8; i++)

{

digitalWrite(mypins[i], 0);

}

void pattern3() //binary up

{

cal = 1;

byte limit;

limit=my_top+1;

// int top = pow(2, strips);

// my_top=byte(top); // for mask

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

{

delay(random_delay);

cal = i;

LightLeds(cal);

}

void pattern4() //blink half half

{

for (int i = 1; i < 6; i++)

{

delay(random_delay);

LightLeds(170 & my_top); // equal to 10101010

delay(random_delay);

LightLeds(85 & my_top);// equal to 1010101

}

all_off();

}

void pattern5() // blink all together

{

for (int i = 1; i < 6; i++)

{

delay(random_delay);

LightLeds(my_top);

delay(random_delay);

all_off();

}

void pattern6()

{

for (int i = 1; i < 6; i++) // two and two

{

delay(random_delay);

LightLeds(204 & my_top);

delay(random_delay);

LightLeds(51 & my_top);

}

all_off();

}

void pattern7() //binary down

{

cal = 1;

for (int i = my_top; i >= 0; i--)

{

delay(random_delay);

cal = i;

LightLeds(i);

}

all_off();

}

Video for Theory: lesson-11-christmas-tree-part-1 Video of First Run: lesson-11-christmas-tree-lights-part-2 Video with Strong Leds: lesson-11-christmas-tree-lights-part-3 More

in Code Examples

Arduino Motor PWM code

Here is Arduino Motor PWM code More

by RoeeBloch 25/06/2015, 6:25 PM
in Code Examples

Lesson 10 – Timer Example Code

Lesson 10 Timer Code Example More

by RoeeBloch 24/06/2015, 4:12 AM
in Code Examples

Lessons 8 & 9 – code example

by RoeeBloch 20/06/2015, 9:42 PM
in Code Examples

Lesson 5 – RF UART code Example

by RoeeBloch 19/06/2015, 6:25 AM

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