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DFR0077

DFR0077

  • 厂商:

    DFROBOT

  • 封装:

  • 描述:

    MAX202 RS232 接口 Arduino 平台评估扩展板

  • 数据手册
  • 价格&库存
DFR0077 数据手册
          MAX202 RS232 to TTL Converter For Arduino SKU:DFR0077   INTRODUCTION This converter uses MAX202-based level shifter for converting TTL (Transistor-Transistor Logic) -level serial to standard RS232serial. 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 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." 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)    SHIPPING LIST RS232-TTL Converter x1    RS232 interface pinout                                                                                                     https://www.dfrobot.com/product‐196.html 8‐10‐18 
DFR0077 价格&库存

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DFR0077
  •  国内价格
  • 1+78.38403
  • 2+66.70548
  • 3+66.69350
  • 5+63.05219

库存:7