RS-485 interface module using the MAX485 IC. RS-485 is ideal for longer distance communications compared to standard TTL or RS-232 serial. Arduino compatible
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This module is aimed to allow Arduino or other microcontrollers to interface with an RS-485 bus. RS485 is used for Serial Communications over longer distances than direct RS232 or TTL serial, and supports multiple units on the same bus (Multi-Drop).
Handy RS-485 guide based around Arduino: http://arduino-info.wikispaces.com/RS485-Modules
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