mousa

Traffic light using 4017 and 555 Parts List: IC555 IC4017 Transistor 2N2222 or any other NPN(3pcs) Red 3mm LED(35pcs) Yellow 3mm LED(35pcs) Green 3mm LED(35pcs) Potentiometer 1M Resistor 100K Resistor 200R 1W Resistor 1K(3pcs) Capacitor 10uF 16v Diode 1N4007 or 1N4148 (9pcs) Circuit: Note:  Use 3mm LEDs only Gerber File: https://drive.google.com/open?id=148pt9TWYS_L4lGvcN-ootc40P0dDy-2m Video:

This circuit is an LED Chaser with 81 LEDs using two 4017 ICs and 555 timer The circuit explained in this video here: https://www.youtube.com/watch?v=JoBsPduHEyc PCBWay is the sponsor of this project Website:  www.pcbway.com You can download the Gerber file or reorder this PCB here Circuit diagram: Parts list: IC 4017(2pcs) IC 555 5mm LEDs (81 pcs) 1K resistor(9pcs) 10K resitor 3.3K resistor 470R resistor 2N2222 transistor(9pcs) 1uF capacitor 100K potentiometer 1N4007 diode Video:

LED Chaser/Sequencer using IC 4017 & IC 555 Parts list: IC 4017 IC 555 LEDs (22pcs) Diode 1N4007 (10pcs) Potentiometer 100K Resistor 330 ohm Capacitor 2.2uF 16V I connect two LEDs in parallel to each output. The Diode through positive supply (VCC) used only for reverse polarity protection(not necessary).

Design and make a big LED 7-Segment for Arduino using BCD to 7segment IC 4511 Parts list: IC4511 LED (35pcs) Resisror 120R (7pcs) Male header pin (6 pin+3 pin) Connecting wires Gerber file: https://drive.google.com/open?id=11R5_IPifnDhEPtdtgeX3StvApPpHDora Circuit: IMPORTANT NOTE: IC 4511 has sourcing current=25mA for each segment, I used five parallel Green LEDs for each segment,i test the total current drawing is only 20mA(4mA each LED), but if you want to use another LED color which make the total current drawing more than 25mA for each segment so you have to add switching transistor for each segment. I chooses Green color LED because draw very very low current and make the circuit simple as possible(No switching transistor needed). Video:  Code:  void setup(){   pinMode(2, OUTPUT); //A   pinMode(3, OUTPUT); //B   pinMode(4, OUTPUT); //C   pinMode(5, OUTPUT); //D } void loop(){     //Number Zero   digitalWrite(2, LOW);   digitalWrite(...

Arduino spirit Level using gyroscope with 11-LED Parts list: Arduino Nano: https://goo.gl/Gox61E Gyroscope: https://goo.gl/vxP6zG Prototype Breadboard: https://goo.gl/jxEJx5 LED Kit: https://goo.gl/UDemfT Resistor Kit: https://goo.gl/TvFJWz Circuit: Video: Code: #include <Wire.h> //Declaring some global variables int gyro_x, gyro_y, gyro_z; long gyro_x_cal, gyro_y_cal, gyro_z_cal; boolean set_gyro_angles; long acc_x, acc_y, acc_z, acc_total_vector; float angle_roll_acc, angle_pitch_acc; float angle_pitch, angle_roll; int angle_pitch_buffer, angle_roll_buffer; float angle_pitch_output, angle_roll_output; long loop_timer; int temp; void setup() {   pinMode(3,OUTPUT);   pinMode(4,OUTPUT);   pinMode(5,OUTPUT);   pinMode(6,OUTPUT);   pinMode(7,OUTPUT);   pinMode(8,OUTPUT);   pinMode(9,OUTPUT);   pinMode(10,OUTPUT);   pinMode(11,OUTPUT);   pinMode(12,OUTPUT);   pinMode(13,OUTPUT);   Wire.begin();     ...

This is a wireless power transmitter that used IC 555 and power transistor. I used it for running 36 white LEDs. You can use any other NPN power transistor instead of 13003. Both coils are 30 turns enamelled wire 30 SWG with 5cm diameter. 10 ohm resistor that placed between base of transistor and pin3 of IC, can replaced by 5 to 75 ohm resistor or jumped, if you jumped it the max. distance range between two coils increased.(power consumption also increased) The circuit run by 3v battery and power consumption is 80 to 270mA. Parts list: IC555 https://goo.gl/R2x7X3 Transistor 13003 (Transistor Kit https://goo.gl/5csLJy ) Coils 30 turns, 5cm diameter, 30 SWG wire (CeramicCapacitor kit https://goo.gl/q29Du3 Capacitor 3.3nF Capacitor 47nF (Resistor kit https://goo.gl/p4JvQY ) Resistor 1k Resistor  10 ohm Resistor 10k LEDs https://goo.gl/SPCY5o Battery 3v Please subscribe to my YouTube channel here:  https://www.youtube.com/c/EngMousaalkaabi?sub_confirmation=1

LED chasers that using IC4017 always contain a timer ic for making clock pulse, but this circuit used a flashing RGB LED as a pulse source, so this is simplest, smallest and cheapest LED chaser with 10 LEDs. This circuit can run with 9v battery and draw only 20mA.  Parts list: IC4017 LEDs(10pcs) Flashing LED Resistor 470 ohm Resistor 330 ohm Battery 9v

1.5v LED flashlight circuit Parts list: White LED(20pcs) https://goo.gl/SPCY5o (Transistor Kit https://goo.gl/5csLJy ) Transistor S9012 Transistor S9013 Coil 100uH https://goo.gl/gtYu5u Capacitor 500pF (Ceramic Capacitor kit https://goo.gl/q29Du3 Capacitor 220uF 10v (Capacitor Kit https://goo.gl/6zqbJy ) (Resistor kit https://goo.gl/p4JvQY ) Resistor 5.6k Resistor 10k Resistor 100 ohm 1.5v AAA battery Use the coil of an old CFL lamp. Please subscribe to my YouTube channel here:  https://www.youtube.com/c/EngMousaalkaabi?sub_confirmation=1

LED chaser using Arduino Nano and 132 LEDs. Parts list: 1-Aluminum plate with 0.7mm thickness 2-Drill bit 5.2 mm(for 5mm LEDs) https://goo.gl/5KMRg6 3-LEDs 5mm blue, white, red, green, yellow https://goo.gl/SPCY5o 4-Black color spray 5-100 ohm resistors (Resistor kit https://goo.gl/p4JvQY ) 6-Connecting Wires https://goo.gl/BVC3pM 7-Arduino Nano https://goo.gl/Gox61E 8-Power supply 5v 1 to 2A https://goo.gl/HJwdof   Please subscribe to my YouTube channel here:  https://www.youtube.com/c/EngMousaalkaabi?sub_confirmation=1 Code: void setup(){   pinMode(2, OUTPUT);   pinMode(3, OUTPUT);   pinMode(4, OUTPUT);   pinMode(5, OUTPUT);   pinMode(6, OUTPUT);   pinMode(7, OUTPUT);   pinMode(8, OUTPUT);   pinMode(9, OUTPUT);   pinMode(10, OUTPUT);   pinMode(11, OUTPUT);   pinMode(12, OUTPUT);   pinMode(13, OUTPUT); } void loop(){     digitalWrite(4, HIGH);   delay(100);   digitalWrite(4, LOW);   delay(10...

By this circuit you can run more than 70 LEDs by an AA battery. The circuit draw 100 to 200 mA from the battery. you can find the choke coil from a mobile charger or old flash camera or rechargeable fly zapper. Parts list: Transistor 2N2222 Resistor 1k Chock coil LED(70pcs) Battery 1.5v NOTE: 1-test the output voltage before connecting that to the parallel LEDs. (2-3v is good) 2-using bigger transformer(choke coil) and power transistor maybe raise the output voltage up to 100v.    

This is simple distance meter with 6LEDs. you can replace the last red led with a buzzer. distance range: <5 to 30cm ultrasonic module: HC-SR04 NOTE: Ultrasonic module can detect distance range from 2cm to 450cm but in this project i set the distance range from <5 to 30cm. code: #define trigPin 7 #define echoPin 6 #define led 13 #define led2 12 #define led3 11 #define led4 10 #define led5 9 #define led6 8 int sound = 250; void setup() {   Serial.begin (9600);   pinMode(trigPin, OUTPUT);   pinMode(echoPin, INPUT);   pinMode(led, OUTPUT);   pinMode(led2, OUTPUT);   pinMode(led3, OUTPUT);   pinMode(led4, OUTPUT);   pinMode(led5, OUTPUT);   pinMode(led6, OUTPUT);   } void loop() {   long duration, distance;   digitalWrite(trigPin, LOW);   delayMicroseconds(2);   digitalWrite(trigPin, HIGH);   delayMicroseconds(10);   digitalWrite(trigPin, LOW);   duration = pulseIn(echoPin, HIGH);   distance = (d...

This is second method for making LED board. in first method i used breadboard for making a small LED board but since there aren't big breadboard in markets so that method not suitable for big size projects. In following video you can see how can make a LED board using aluminum plate. The aluminum plate with 0.7 mm thickness must puncture with 4.8 or 4.9 mm drill bit.(for 5mm LEDs) The LEDs must connect together in parallel means all positive connect together and all negative connect together so you can run that with 2 to 3.5v (according to led types). you have to using a resistor through positive line to protect your LEDs and increase its life period.(see the note) Parts list: Aluminum plate 0.7 mm thickness Drill bit 4.8 or 4.9 mm (for 5mm LED) Silicone adhesive Black color spray battery Text or shape printed on a paper Solder flux LED(number of LEDs depend on your text or shape bigness) Resistor (see the note) Note:  Protection resistor used when supply power is more than s...