RS232 Shield for Arduino

SKU: DFR0258

Price:
37.00 AED
Stock:
In stock

Description

This RS232 Shield For Arduino is designed for theArduino controller,and it can easily convert UART to RS232 interface.

The RS232 shield integrates DB9 connectors (female) that provide connection to various devices with RS232 interface. Also the RS232 shield headers will facilitate your connections and commissioning. It provides the welding areas to make full use of extra space on it, which is highly convenient forprototyping. It provides a run / program mode switch. When switched OFF, you'll be able to programme theArduino controller; When switched ON, you can use theshield normally. Gold immersionPCB. Long pins on the back that are compatible with mostArduino controllers such asarduino Uno,arduino Mega,Leonardo.

As an alternative of RS232, RS485 provides more reliable way to transfer data at a longer distance. We also have aRS485 shield (Arduino) for this scenario. 

RS232 DB9 Pinout Diagram

RS232 DB9 Pin out Diagram

RS-232 Maximum Cable Length

The maximum cable length for RS-232 is 50ft, but in practise depends on baud rate, cable specific capacitance and ambient noise. The table below contains some rules-of-thumb from experiments done by Texas Instruments years ago.

Baud rate Maximum range / cable length
19200 50ft
9600 500ft
4800 1000ft

What is RS232? 
"In telecommunications, RS-232 is a standard for serial communication transmission of data. It formally defines the signals connecting between a DTE (data terminal equipment) such as a computer terminal, and a DCE (data circuit-terminating equipment or data communication equipment), such as a modem. The RS-232 standard is commonly used in computer serial ports. The standard defines the electrical characteristics and timing of signals, the meaning of signals, and the physical size and pinout of connectors. The current version of the standard is TIA-232-F Interface Between Data Terminal Equipment and Data Circuit-Terminating Equipment Employing Serial Binary Data Interchange, issued in 1997." FromWikipedia
 
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