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RS 232 to TTL converter tests UARTs with a PC - 29-May-08 Issue
of EDN A simple RS-232-to-TTL converter tests UARTs using a PC's
serial port for power.... [Design Idea by Matthieu Bienvenüe, Malissard,
France] |
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RS-232 Autobaud for the PIC16c5x Devices - Microchip Application
Note Published 1-Apr-99 (app note added 3/06) |
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RS232 Booster - RS232 ports of modern laptops are not always
complying with the original RS232 standard. If RS232 levels are expected
to be +/- 12 volts,....(electronic circuit added 4/05) |
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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.... [Designed by Markus Wandel] |
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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...(electronic circuit added 4/05) |
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RS232 Expander - Simple hardware expands COM1 to COM1/1 and
COM1/2. (circuit added 09/09) |
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RS-232 Interface Circuits for 3.3V Systems - DN75 Design
Notes (Linear Technology) (app note added 1/06) |
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RS-232 Laser Transceiver - Laser based projects used to be
expensive, until the development of solid state lasers.....(electronic
circuit added 4/05) |
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[ad-DAJ-FS-split.htm]
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RS232 Level Conversion - RS232 Level conversion.... |
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RS-232 Line Driver Power Supply - National Semiconductor Application Note
(app note added 2/06) |
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RS-232 Line Monitor & Loopback Cables - (electronic circuit added 4/05)
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RS-232 Overvoltage Protection Circuits - (electronic circuit added 1/03)
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RS-232 Protocol Analyser - (electronic circuit added 4/05) |
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RS-232 Serial Port Buffer Circuit - (design circuit added 8/02) |
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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. ….(design added
11/08) |
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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. ….(electronic
schematic added 11/08) |
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RS-232 Surge Protection - (electronic circuit added 11/05) |
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RS-232 to IRDA Convertor using Vishay Toim3232 - (electronic circuit added
4/05) |
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RS-232 to TTL Cable - (electronic circuit added 4/05) |
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RS-232 to Wireless Instrument Data Channel - This is an adapter that allows
a terminal to communicate via a 100 MHz data channel with peripherals on the same desk
top. Keystrokes from the terminal are are received through the RS-232 connection and
sent through the 100 MHz RF data channel. (ATtiny2313, AT90S2313)....(added 6/07)
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RS-232 Transceiver with Automatic Power Shutdown Control - Design Notes
(Linear Technology) (app note added 1/06) |
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RS-232 Transceivers for Hand Held Computers Withstand 10kv Esd - DN64
Design Notes (Linear Technology) (app note added 3/06) |
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RS-232/485 converter has automatic flow control - 04/12/01 EDN-Design Ideas
RS-485 communications can provide longer range and better noise immunity than RS-232,
as well as multidrop capability. Because it does not have separate transmit and
receive lines, RS-485 requires flow control.….PDF contains multiple circuits, scroll
to find this circuit.... [Design Idea by John Howard, Kw Aware, Ventura, CA] |
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RS-232/DALI Bridge Interface - Microchip Application Note Published
26-Apr-02 (app note added 2/06) |
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RS-232: Lowe Hf-225 Interface - If you have access to a Lowe HF-225
shortwave receiver, then you might be interested in this page. If you don't, then
you'd probably be better off leaving now. What follows is a project I completed some
time ago, which allows the Lowe HF-225 to be controlled from a PC, or other device
with an available RS232 port. The Rx has an input for a remote keypad, and,
consequently, was begging for me to hook my PC up to it. I don't feel the need to
spell out the advantages,....(design added 07/08/09) |
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RS-232C circuit has galvanic isolation - 04-Feb-99 Issue of EDN
Galvanic, or electrical, isolation is a well-established technique for noise reduction
and works best in computer and industrial systems in which noise can seriously affect
data transfer. Isolation removes ground-loop currents and their associated noise
voltages from data lines....file has several circuits, scroll to this one.... [Design
Idea by Ioan Ciascai, REI Data, Napoca, Romania] |
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RS-232c Communication using UART - Toshiba 870X Series Application Note
(app note added 2/06) |
