Communication Circuit | Next Electronics

The circuit incorporates isolation at the sensors and actuators to ensure that the PC is also isolated. Various chips are available for this purpose. The circuit is constructed with discrete and passive components, with the exception of the opto-isolator 4N35....

MF10 Full Duplex Modem Filter Diagram Schematic and Applications

Later, there will be applications including a Basic Circuit Description, Block Diagram of the MF10, Programmable Dual Clock Generator, Butterworth Lowpass Filter, MF10 as an Input Filter and Sample/Hold, Generating Quadrature Sine Waves, and the Non-Inverting Integrator used in the...

Modem Off Indicator

The modem off indicator is designed specifically for avid Internet users. It is evident that the circuit for this indicator is quite simple. The modem off indicator serves a crucial function for users who rely heavily on internet connectivity. This circuit...

network rs232

A significant number of modules still utilize an RS232 interface. This is understandable, as RS232 can be easily implemented on a microcontroller using just two I/O pins and a line driver such as the MAX232. When the master device is...

Wireless alarm FM transmitter module

There are many alarm systems available, but building a custom one may be appealing. This project can be assembled using affordable components that are easily accessible. The alarm transmitter module features a delayed trigger and an automatic turn-off function, operating...

RS232 cable modem

First of all you have to build one cable adapter to connect the female 9pins connector of the modem, with female 9pins connector of the base of E-10G HPC. To build the null modem cable you will need: 2 male...

Wireless remote control switch circuit 5

The wireless remote control transmitter circuit consists of control buttons S1 to S16, resistors R1 to R3, a capacitor C1, a regulator diode VS, a crystal oscillator BC1, and DTMF encoder integrated circuits IC1 and IC2. The circuit components are...

Cheap I2C bus control stereo decoder TDA9853H

A cost-effective I2C bus-controlled stereo decoder, TDA9853H, is utilized for digital mediation in FM radio applications. It operates within a stereo decoding circuit, processing the baseband signal that has been encoded into stereo format. The chip interfaces with the stereo...

Overvoltage protection for RS232

RS-232C serial port lines are quite prone to be damaged by overvoltages. The damage to computer serial ports has become more and more expensive to replace because of higher integration: usually, you have to buy a new motherboard if one...