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RS-232 Data Switch - In 1989, at university, after the success with submitting a writeup about my homemade 68008
single-board computer as a co-op work term report, I hatched the idea of building another piece of gear that I
wanted anyway, and submitting it as an EE499 project. EE499 was the course code. . . [Designed by Markus Wandel]
RS232 DB-9
switch to flip between two serial ports - Simple hardware
expands PC's COM port from COM1 to COM1/1 and COM1/2. No active parts. . . [Wichit Sirichote, designer]
RS-232 dB-9
Switch-To-Flip Between Two Serial Ports - got a problem
with my notebook, because it has only COM1. My programmer board, Easy-Downloader must use serial port and the
application board also needs to communicate via the same serial port. I do remembered I have to swap DB9
connector of both devices many times. So I spent 30 minutes built above simple hardware. Of course. . . [Wichit
Sirichote's web site]
RS232 Expander - Simple hardware expands COM1 to COM1/1 and COM1/2. . . . [Wichit Sirichote, designer]
RS-232
Interface Circuits for 3.3V Systems - DN75 Design Notes
(Linear Technology). . . [Linear Technology]
RS-232 Laser Transceiver - Laser based projects used to be expensive, until the development of solid state lasers. This
project is designed for the entry level laser experimenter. The circuit allows any two computers with serial
(RS-232) communication capability to communicate over 200 meters using a laser beam. A low cost transmitter only
circuit is also presented here for use in one way communication and other laser based projects. . .
[shaunwilson19 AT yahoo.com]
RS232 Level Conversion - RS232 Level conversion. . .
RS-232 Line Driver Power Supply - Application Note . . . [National Semiconductor]
RS-232 Line Monitor & Loopback Cables - . . . [by Airborn Electronics, Australia]
RS-232 Overvoltage Protection
Circuits - . . . [Designed by Tomi Engdahl]
RS-232 Protocol
Analyser - . . .
RS232 RS485 USB Converter
Board - . . .
RS-232 Serial Port Buffer Circuit - . . . [Designed by Tomi Engdahl]
RS232 Serial Port PIC
Programmer - PIC Programmer is an essential tool if you
wish to learn or build projects with Microchip PIC Micro Processors. This programmer is for those who do not have
a Parallel Port on their PC. Programmer may be used with Free Windows Software such as "PIC PROGRAMMER
Professional Serial" from Oshosoft and may work well with other serial programming software. . . .
RS232 Serial to USB
Converter - This is simple RS232 Serial to USB Converter
that doesn’t need any further explanations. You can use it for any projects that might need it. Diagrams for USB
and DB-9 female connectors are provided. . . .
RS232 snake - Scroll to find this one. Then snap all connectors on to the flat cable (a small vice will do
the job). You get an instant male-male, male-female, female-female serial adaptor, plus a short extender cord. A
must-have tool if you're planning to play with serial ports. You can even put an extra connector for monitoring
the RS232 traffic. This nice idea comes from Claudio Lanconelli. . . . [Alberto Ricci Bitti]
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