MAX202 RS232 to TTL Converter For Arduino
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This converter uses MAX202-based level shifter for converting TTL (Transistor-Transistor Logic) -level serial to standard RS232 serial.
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.
RS-232 Maximum Cable Length
| 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
- 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)
