Mini black and white cameras are now available at a low cost. The proposed experimental setup allows wireless transmission of images from a CCD camera module. The entire system is completely autonomous, and numerous applications can be considered: video doorbell, monitoring of a child’s room, onboard video system, aerial photography (modeling), etc. The transmission is […]
Transmitter
Tracking Transmitter Circuit
When searching for an object, our initial instinct is to rely on our vision. However, the Tracking Transmitter circuit featured in this article offers an alternative by utilizing sound. The Tracking Transmitter emits a sequence of brief, modulated tones that can be detected by most FM receivers as a distinct beep. By: Ronit Roy Basically […]
Telephone Transmitter Circuit
In this post I have explained how a landline telephone can be rigged up wirelessly with a small transmitter circuit, enabling easy tapping of the telephone, by transmitting the conversations to a distant FM radio appropriately set up for the listening. Circuit Description The circuit diagram for the Telephone Transmitter can be witnessed in the […]
Transmitter Receiver Circuit for 80-meter Ham Radio
This tiny and simple transmitter, receiver set will allow you to communicate over 100 of miles across the world, by tuning to 80-meter amateur ham radio stations. What is 80-meter Band The 80-meter uses 3.5 MHz frequency band for radio communications, which gets the permissions under amateur radio use Between 3.5 to 4.0 MHz in […]
LiFi Internet Transmitter Circuit – USB Signal Transfer through LED
In this post I have explained how to transmit Internet data through LiFi using a class D amplifier as the transmitter and an ordinary audio amplifier circuit as the receiver. How Li-Fi Concept Works If you are wondering how a LiFi concept could be used for transmitting USB data, this article will provide with all […]
Long Range Transmitter Circuit – 2 to 5 Km Range
The proposed long range transmitter circuit really is very steady, harmonic free design which you can use with standard fm frequencies between 88 and 108 MHz. Technical Specifications of the Transmitter This will likely encompass 5km spectrum (long range). It includes an extremely consistent oscillator for the reason that you employ LM7809 stabilizer that is […]