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laser communication – Circuit Schematic
laser communication
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FSK modem with driver for Atari ST or PC – Circuit Schematic
FSK modem with driver for Atari ST or PC
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RS-232 Laser Transceiver – Circuit Schematic
RS-232 Laser Transceiver
This project is designed for the entry level laser experimenter. The circuit allows any two computers with serial (RS-232) communication capability to communica...
PULSED MODULATED LASER – Circuit Schematic
PULSED MODULATED LASER
Boards are powered by two 9volt alkaline batteries. Circuits are a compilation of circuits found in the Radio Shack Engineering Handbook for making pulse modula...
High-Linearity Analog Optocouplers – Circuit Schematic
High-Linearity Analog Optocouplers
High linearity analog optocouplers provide the versatility required to meet a wide range of analog isolation needs. For designers of high voltage applications, ...
gsm interfacing with lpc2148 arm7 primer – Circuit Schematic
gsm interfacing with lpc2148 arm7 primer
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Interface Bluetooth with LPC2148 circuit – Circuit Schematic
Interface Bluetooth with LPC2148 circuit
The Interfacing Bluetooth module with LPC2148 program is very simple and straight forward, which send a message to mobiles from LPC2148 Primer Board through Blu...
bluetooth interfacing with 8051 – Circuit Schematic
bluetooth interfacing with 8051
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Command Station for DCC Adapter for Xpressnet – Circuit Schematic
Command Station for DCC Adapter for Xpressnet
Xpressnet is a bus system for model railways to interconnect input devices, computer interfaces and stationary decoder or feedback detectors. Many commercial in...
Wide-Body Low-Power Isolated CAN Transceiver – Circuit Schematic
Wide-Body Low-Power Isolated CAN Transceiver
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Modular Signal System Implementation – Circuit Schematic
Modular Signal System Implementation
This page serves as documentation for the circuits that I have built which make use of the Modular Signal System first documented by Gregg Fuhriman in Railmodel...
Interfacing to LVDS with the NI 655X Digital Waveform Generator/Analyzer – Circuit Schematic
Interfacing to LVDS with the NI 655X Digital Waveform Generator/Analyzer
The NI 655X is a versatile high-speed digital product that can interface to many different technologies. This application note shows how to interface the NI 655...
Adding sync pulses to the video signal – Circuit Schematic
Adding sync pulses to the video signal
This section contains details for providing a composite video output signal from the camera to drive an external monitor. The circuit described below, designed ...
Mini USB-DMX interface – Circuit Schematic
Mini USB-DMX interface
On the DMX line side a XLR connector should be used. Either a 5 or 3 pin connector. The pins/holes in a XLR connector are usually numbered so no need for a pict...
network rs232 – Circuit Schematic
network rs232
A surprising number of modules still have an interface based on RS232. No wonder, as RS232 is easy implemented on a microcontroller with two I/O pins and a line...
DS8500 HART Modem – Circuit Schematic
DS8500 HART Modem
Overview: The DS8500 is a single-chip modem with Highway Addressable Remote Transducer (HART®) capabilities and satisfies the HART physical layer requirements....
Improving USB 2.0 Switched-System Response – Circuit Schematic
Improving USB 2.0 Switched-System Response
By adding discrete inductors in series with the device, we can œtune out some of the capacitance, and improve the eye opening. If we add enough inductance to...
Combining the Composite Sync to the Green Signal – Circuit Schematic
Combining the Composite Sync to the Green Signal
In some video applications, the signal sources deliver RGB signals and a composite sync signal. The RGB signals contain no video sync. At the receiver side, som...
Understanding LVDS Fail-Safe Circuits – Circuit Schematic
Understanding LVDS Fail-Safe Circuits
LVDS receiver needs a failsafe function to avoid uncertain output state when it has an improper connection. In this appnote, we examine the circuits and charact...
rs-485 circuits – Circuit Schematic
rs-485 circuits
When a network needs to transfer small blocks of information over long distances, RS-485 is often the interface of choice. The network nodes can be PCs, microco...