Cell Phone Jammer Using IC555

A Simple Cell phone jammer using IC555.

GSM Controlled Robot

In the project the robot is controlled by a mobile phone that makes a call to the mobile phone attached to the robot. In the course of a call, if any button is pressed a tone corresponding to the button pressed is heard at the other end called ‘Dual Tone Multiple frequency’ (DTMF) tone.

8x8 Dotmatrix Scrolling LED Display

Here 64 leds which are connected to an Matrix display. The Anodes are drived through an Driver IC UDN2981 and the cathodes are drived through ULN2803. The Atmega8515 is used in this project to control the display. The microcontroller is programmed with Bascom AVR.

Infrared Remote Switch

A Simple Infrared remote control circuit.

Showing posts with label infrared remote control. Show all posts
Showing posts with label infrared remote control. Show all posts

Infrared Remote Switch Circuit

PCB Layout -

Schematic


PCB Parts Placement

Parts List -
R1 - 1 - 3 Meg 1/4W Resistor
R2 - 1 - 1.2 Meg 1/4W Resistor
R3 - 1 - 680 Ohm 1/4W Resistor
R4 - 1 - 2K 1/4W Resistor
R5 - 1 - 4.7K 1/4W Resistor
R6 - 1 - 150 Ohm 1/4W Resistor
C1 - 1 - 0.001uF Ceramic Disc Capacitor
C2, C5 - 2 - 1uF 50V Tantalum Electrolytic Capacitor
C3 - 1 - 47uF 50V Tantalum Electrolytic Capacitor
C4 - 1 - 10uF 50V Tantalum Electrolytic Capacitor
C5 - 1 - 150 Ohm 1/4W Resistor
D1 - 1 - 1N4733 5V Zener Diode
D2 - 1 - 1N4003 Rectifier Diode
Q1 - 1 - 2N6071A TRIAC
U1 - 1 - GP1U52X IR Module
U2 - 1 - MC74HC74 D-Type Flip Flop
U3 - 1 - MOC3011 Opto Isolator
MISC - 1 - Board, Sockets For ICs, Mains Socket, Mains Plug and Cord, Wire

Notes
1. Under normal circumstances, Q1 should not need a heatsink.
2. The circuit is designed for a supply voltage of 120V.
3. The printed circuit pattern is reproduced here larger then real life for clarity. It will need to be resized to the scale at the bottom of the image if you intend to transfer it to a board.
4. The circuit functions as an on/off flip flop. Illuminate it with your remote once to turn it on, then again to turn it off.


Next.gr
Courtsy-simple-electronics.com

Share

Twitter Delicious Facebook Digg Stumbleupon Favorites More