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아두이노 RS232 to TTL 변환 컨버터 모듈 / MAX202 RS232 to TTL Converter For Arduino
판매가격 : 9,900원 (부가세 포함)
상품코드 :[3097]ZAS-DFR-DFR0077
배송일 :당일발송
제조사 :DFRobot
브랜드 :DFRobot [브랜드몰 바로가기]
남은수량 : 2개
구매수량 :
총 금액 :
추가&대량구매 요청 053-588-4080

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MAX202 기반의 RS232 to TTL 변환 컨버터 모듈입니다. 이 컨버터는 TTL 레벨을 RS232로 변경하기 위해 MAX202 레벨 시프터를 
사용한 모듈입니다. 아두이노의 0번, 1번핀을 TTL 단자에 연결하여 RS232 로 변환할 수 있습니다.


INTRODUCTION

This converter uses MAX202-based level shifter for converting TTL (Transistor-Transistor Logic) -level serial to standard RS232 serial.   

RS232 is widely used in radio modifications,phone flash, XBOX360 flash, GPS, vehicle detection, DVD flash, hard disk repair set-top box upgrade. It can be used to program STC MCU, NXP MCU,Renesas MCU, STM32 MCU, N+-2EC MCU. 

This converter can be connected to an Arduino Serial pin (0,1) to convert standard Arduino ttl to RS232.  It allows arduino talk to hundreds of RS232 devices. 


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 rateMaximum range / cable length
1920050ft
9600500ft
48001000ft


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." From Wikipedia

SPECIFICATION

  • 4 pin connector - GND, Logic out (STX), +5v, Logic In (SRX)
  • Suitable for use with most microcontrollers
  • 300 to 115200 bauds
  • Pre-assembled board
  • DB9 Female Connector (RS-232)
  • Standard Header Connector (TTL)

DOCUMENTS

SHIPPING LIST

RS232-TTL Converter x1

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