Mutchus

INFRARED (IR) FLASHER CIRCUIT is very much important for security or burglar systems. The Circuit is quite simple and easy to do for your projects. As we discussed in my previous posts IR SWITCHING CIRCUIT, Infrared rays are invisible to human eyes. We can only see it through a camera. Circuit diagram of Infrared flasher Circuit Specifications R1- 150K R2- 1.5K C- 0.01μF Ic 555 timer constitutes the heart of this circuit, it is wired as an ASTABLE MULTIVIBRATOR which will produce a Frequency determined by the RC(R1,R2,C) time constant of the circuit. You can use our 555 Frequency Calculator tool to find the output Frequency of this circuit. The output voltage from pin 3 will drive the IR Led to glow. You can use 2 led's in series to increase the brightness. This circuit can be used as a flasher for security cameras at night.

Battery life has always been a critical consideration for most of the electronic gadgets and equipment. When we talk about spy  cameras,  which  normally  function  round-the-clock, they often run out of power within a few days.  Many spy cameras (CCTV cameras) are powered by 9V PP3 type batteries that offer five times more energy  than the regular 9V alkaline battery. Mini CCTV cameras also accept 6-12V DC supply from AC mains adaptor through the DC IN jack. AC mains adaptor for the camera increases the capacity of the 9V PP3 battery but is bulky and noisy. Whether disposable  or rechargeable batteries, making frequent replacement or recharging them is a cumbersome job. The unique solar power box described here serves an alternative solution to the problem.  Circuit diagram : Spy Camera Solar Power Box Circuit Diagram The circuit of the solar power box is simple. It contains a  battery charger and a battery health indicator and  a few other components.  As shown in the circuit, ...

Closed-circuit television (CCTV) uses video cameras to transmit signals to specific monitors. It differs from broadcast television in that the signal is not openly transmitted, though it may employ point-to-point wireless links. CCTV is often used for surveillance in areas that need security,such as banks, casinos, shops, departmental stores and airports or military installations.  Here is a remote-controlled CCTV switcher circuit to monitor six cameras on a single or dual monitor/TV.  The salient features of this switcher are:  Cameras: Six cameras with one way audio (audio incoming only).   Operation: Fully remote controlled (infrared commander). Front display: LCD to display the camera selected and all other functions/parameters. Camera selection: Manual (you can select any camera of your choice by pressing number keys or camera up/down keys on the remote) and auto (the switcher selects the cameras one by one and holds videos of each camera till the preprogrammed ...

Canon has long been a leader in the world of DSLRs, but when it comes to smaller sized shooters, Canon had largely concentrated on commercially viable consumer and prosumer class digital cameras, not really treading on the mirrorless camera technology known as Micro Four Thirds which has been around for some years now. The mirrorless camera comes close to a DSLR in terms of image quality, and yet is far less bulkier in terms of size, not to mention allowing you to change a fair number of lenses (a market which is growing), making it a favorite secondary camera to many. Well, Canon has finally decided to dip their toes into this particular market, by offering the Canon EOS M digital camera which is said to deliver exceptional EOS Full HD video quality with continuous autofocus, not to mention having it accompanied by a notable and expansive range of lenses. Inspired by EOS technology, the EOS M will be able to leverage on the company’s core technologies, while distilling them down in or...