RFID Meter Circuit Schematic | Next Electronics

Wireless Telephone Bug. This project enables monitoring of a phone line as soon as the phone is off-hook. A regular FM broadcast band radio can be utilized for this purpose. The Wireless Telephone Bug is a circuit designed to allow users...

RFID security access project using Arduino Uno

This project aims to develop a security system suitable for business environments or for simple home use. The system utilizes an Arduino Uno microcontroller in conjunction with RFID (Radio Frequency Identification) technology, enabling wireless user identification. Only registered users included...

Wireless Fm Microphone

A simple FM wireless microphone utilizes a single BC183C transistor as an audio amplifier, with the option to substitute it with a 2N3565. The transistor Q1 functions as an oscillator that is frequency-modulated by the signal from Q1. Other transistors...

Carport wireless alarm circuit a

The alarm circuit is composed of two main components: the transmitter and the receiver. The transmitter circuit, as illustrated in Figure A, features a smoke break reed switch labeled GT. When a magnet approaches the GT, the internal contacts open....

Schematic of The Infrared Rays Wireless Headphone

The transmitter circuit for inductive headphones must be installed on a wall or ceiling, limiting their use outdoors. This is a significant drawback of inductive headphones. In contrast, infrared wireless headphones do not have this limitation; their flexible infrared transmitter...

DIY FSK RFID Reader using Arduino

This document describes the construction of an RFID reader utilizing an Arduino (specifically tested with the Nano 3.0, although other models may also be compatible), a hand-wound wire coil, and various low-cost common components. RFID readers are devices manufactured by...

Objects in Flux

The Open Source Automation project is a free automation software that operates on Windows and does not require programming for setup. It features a user-friendly graphical interface and includes unique functionalities that are not typically found in high-end security and...

Quality Stereo Wireless Microphone or Audio Link

This stereo FM wireless microphone serves as an excellent audio link. Testing revealed a reliable range exceeding 50 meters. It is distinct from previous wireless microphones due to its stereo capability, which delivers unexpectedly high-quality sound. The range was tested...

Wireless Car AlarmCircuit With 2N3904 Transistor

The following circuit illustrates a Wireless Car Alarm Circuit Schematic Diagram. Features include the ability to detect sounds within a 20-meter radius, a 1/16 wavelength antenna, and the capability to transmit radio signals up to 2 kilometers. Q1 serves as...