Passive Infrared Sensor ( Motion Sensor) PIR Motion Sensor is a highly integrated module used for human entry detection it can easily adopt in the system. There will be a 2 adjustable potentiometer in the module board, which is any
Installing drivers for Arduino Duemilanove, Nano, or Diecimilla
When you connect the board, Windows should initiate the driver installation process (if you haven’t used the computer with an Arduino board before). On Windows Vista, the driver should be automatically downloaded and installed. (Really, it works!) On Windows XP,
The Raspberry Pi Models and How to Address them
The Raspberry Pi Models and Version & the Difference. Lots of Makes, developers, hobbyist and engineers these days questioning what is the difference between Arduino & Raspberry. Even though both are made for solving difference problems. Raspberry Pi is a
Starter #10 Driving 7 Segment Digital Display with Arduino with Source Code
Here the steps how to wire and driving the 7 segment digital display using Arduino. Electronic Parts Required ARDUINO UNO/MEGA/PRO 4x Seven Segment Digital Display 8x 220 k Resistor
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/* . . ........ .... .. ...... ........ MMMM MMMMM MMMMMMMMMMMMMMMMMMM MMMMMMMMMM. MMMMMMMMM MMM.MMMMMMM MMM MMM .MM.MMM MMM ......... .... ... . . . MMM MMMMMMM . .MM. MM. MMM MM. . MMM MMMMMMMMM MMMM MMMMM.MM MM MMMMMMMMMMMM. .MMM MMM. .MMM.MMMMMMMMM ........ MMM MM . M .MMMMMMMM. MMM .MMM MMMMMMMM.MMMMMMM. MM .MMM. MMMMMMMM. MMM .MMMM MMMM MMMMMM. www.14core.com . ... . . ...... */ int a = 1; int b = 2; int c = 3; int d = 4; int e = 5; int f = 6; int g = 7; int p = 8; int d4 = 9; int d3 = 10; int d2 = 11; int d1 = 12; long n = 0; int x = 100; int del = 55; void setup() { pinMode(d1, OUTPUT); pinMode(d2, OUTPUT); pinMode(d3, OUTPUT); pinMode(d4, OUTPUT); pinMode(a, OUTPUT); pinMode(b, OUTPUT); pinMode(c, OUTPUT); pinMode(d, OUTPUT); pinMode(e, OUTPUT); pinMode(f, OUTPUT); pinMode(g, OUTPUT); pinMode(p, OUTPUT); pinMode(13,INPUT); } void loop() { clearLEDs(); pickDigit(1); pickNumber((n/x/1000)%10); delayMicroseconds(del); clearLEDs(); pickDigit(2); pickNumber((n/x/100)%10); delayMicroseconds(del); clearLEDs(); pickDigit(3); dispDec(3); pickNumber((n/x/10)%10); delayMicroseconds(del); clearLEDs(); pickDigit(4); pickNumber(n/x%10); delayMicroseconds(del); n++; /* When you need to put the numbers to zero, you may use this function ClearDigital(); */ //ClearDigital(); } void pickDigit(int x) { digitalWrite(d1, HIGH); digitalWrite(d2, HIGH); digitalWrite(d3, HIGH); digitalWrite(d4, HIGH); switch(x) { case 1: digitalWrite(d1, LOW); break; case 2: digitalWrite(d2, LOW); break; case 3: digitalWrite(d3, LOW); break; default: digitalWrite(d4, LOW); break; } } void pickNumber(int x) { switch(x) { default: zero(); break; case 1: one(); break; case 2: two(); break; case 3: three(); break; case 4: four(); break; case 5: five(); break; case 6: six(); break; case 7: seven(); break; case 8: eight(); break; case 9: nine(); break; } } void dispDec(int x) { digitalWrite(p, LOW); } void clearLEDs() { digitalWrite(a, LOW); digitalWrite(b, LOW); digitalWrite(c, LOW); digitalWrite(d, LOW); digitalWrite(e, LOW); digitalWrite(f, LOW); digitalWrite(g, LOW); digitalWrite(p, LOW); } void zero() { digitalWrite(a, HIGH); digitalWrite(b, HIGH); digitalWrite(c, HIGH); digitalWrite(d, HIGH); digitalWrite(e, HIGH); digitalWrite(f, HIGH); digitalWrite(g, LOW); } void one() { digitalWrite(a, LOW); digitalWrite(b, HIGH); digitalWrite(c, HIGH); digitalWrite(d, LOW); digitalWrite(e, LOW); digitalWrite(f, LOW); digitalWrite(g, LOW); } void two() { digitalWrite(a, HIGH); digitalWrite(b, HIGH); digitalWrite(c, LOW); digitalWrite(d, HIGH); digitalWrite(e, HIGH); digitalWrite(f, LOW); digitalWrite(g, HIGH); } void three() { digitalWrite(a, HIGH); digitalWrite(b, HIGH); digitalWrite(c, HIGH); digitalWrite(d, HIGH); digitalWrite(e, LOW); digitalWrite(f, LOW); digitalWrite(g, HIGH); } void four() { digitalWrite(a, LOW); digitalWrite(b, HIGH); digitalWrite(c, HIGH); digitalWrite(d, LOW); digitalWrite(e, LOW); digitalWrite(f, HIGH); digitalWrite(g, HIGH); } void five() { digitalWrite(a, HIGH); digitalWrite(b, LOW); digitalWrite(c, HIGH); digitalWrite(d, HIGH); digitalWrite(e, LOW); digitalWrite(f, HIGH); digitalWrite(g, HIGH); } void six() { digitalWrite(a, HIGH); digitalWrite(b, LOW); digitalWrite(c, HIGH); digitalWrite(d, HIGH); digitalWrite(e, HIGH); digitalWrite(f, HIGH); digitalWrite(g, HIGH); } void seven() { digitalWrite(a, HIGH); digitalWrite(b, HIGH); digitalWrite(c, HIGH); digitalWrite(d, LOW); digitalWrite(e, LOW); digitalWrite(f, LOW); digitalWrite(g, LOW); } void eight() { digitalWrite(a, HIGH); digitalWrite(b, HIGH); digitalWrite(c, HIGH); digitalWrite(d, HIGH); digitalWrite(e, HIGH); digitalWrite(f, HIGH); digitalWrite(g, HIGH); } void nine() { digitalWrite(a, HIGH); digitalWrite(b, HIGH); digitalWrite(c, HIGH); digitalWrite(d, HIGH); digitalWrite(e, LOW); digitalWrite(f, HIGH); digitalWrite(g, HIGH); } /* you can add a button, please refer to 14Core Starter #3 Button Control. keep the Pin13 all high. when push the button, it become LOW. n=0; */ void ClearDigital() { if(digitalRead(13)== LOW) { n=0; } } |
Download the source code here | 14Core Digital Display
Starter #9 Light Detection with (LDR) Light-Dependent Resistor with Arduino
Detecting a light or making a switch using Photoresistor interface with Arduino. Electronic Components Required Arduino UNO/MEGA/PRO 1x LED 1x 220k Ohm Resistor 1x 10k Resistor 1x LDR(Photo resistor)
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/* . . ........ .... .. ...... ........ MMMM MMMMM MMMMMMMMMMMMMMMMMMM MMMMMMMMMM. MMMMMMMMM MMM.MMMMMMM MMM MMM .MM.MMM MMM ......... .... ... . . . MMM MMMMMMM . .MM. MM. MMM MM. . MMM MMMMMMMMM MMMM MMMMM.MM MM MMMMMMMMMMMM. .MMM MMM. .MMM.MMMMMMMMM ........ MMM MM . M .MMMMMMMM. MMM .MMM MMMMMMMM.MMMMMMM. MM .MMM. MMMMMMMM. MMM .MMMM MMMM MMMMMM. . ... . . ...... */ int photocellPin = 2;//define the LDR to D2; int ledPin =12; int val =0; //val to store the data; void setup(){ pinMode(ledPin,OUTPUT);//set the ledPin to output; Serial.begin(9600); } void loop(){ val = analogRead(photocellPin); Serial.println("current light is"); Serial.println(val); if (val<350){ //512 =2.5V, you can modify this to adjust the sensitivity; digitalWrite(ledPin,HIGH); } else{ digitalWrite(ledPin,LOW); } delay(1000); } |
Download the source code here | 14Core Light Detection
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How to used ULN2003 Stepper Motor Driver Module in Arduino Tutorial Guide
The ULN2003 Stepper Motor Driver Module is small size & ease to use electronic module, it used ULN2003 Chip to amplify the signal from the micro controller, Input voltage max 15v Logic Control Voltage: 3 to 5.5v Motor Supply Voltage: 5 to