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By Mahamudul Karim Khondaker - February 19, 2013

World wide freedom

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Arduino and MQ 2 gas sensor

By Mahamudul Karim Khondaker - March 30, 2019

Gas Sensor MQ2 Arduino code : #define MQ_PIN (0) //define which analog input channel you are going to use #define RL_VALUE (5) //define the load resistance on the board, in kilo ohms #define RO_CLEAN_AIR_FACTOR (9.83) //RO_CLEAR_AIR_FACTOR=(Sensor resistance in clean air)/RO, //which is derived from the chart in datasheet / **********************Software Related Macros*********************************** / #define CALIBARAION_SAMPLE_TIMES (50) //define how many samples you are going to take in the calibration phase #define CALIBRATION_SAMPLE_INTERVAL (500) //define the time interal(in milisecond) between each samples in the //cablibration phase #define READ_SAMPLE_INTERVAL (50) //define how many samples you are going to take in normal operation #...

Arduino to excel Communication

By Mahamudul Karim Khondaker - March 30, 2019

Arduino to excel Communication (Arduno code) : void setup(){ Serial.begin(9600); Serial.println("CLEARDATA"); Serial.println("LABEL,Acolumn,Bcolumn,..."); Serial.println("RESETTIMER"); } void loop(){ int sensorValue = analogRead(A0); Serial.print("DATA,TIME,TIMER,"); Serial.println(sensorValue); delay(1); }

Learning to Pray

By Mahamudul Karim Khondaker - March 21, 2013

We all get distracted and can be tempted to misdirect our worship. We end up placing supreme value upon people, things, or even ourselves. The Bible calls this “idolatry”. Repent of this attitude today and turn your attention to the Living God. You were made to love God, and magnify Him in all things! Make the verse below your prayer and declaration of faith today. Love of God: http://bit.ly/10zA7tX