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By Mahamudul Karim Khondaker - March 21, 2013

Wow art is a mirror..

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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); }

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