TTL-RS485 Serial Converter Card - MAX485

The RS485 to TTL Serial Level Signal Converter Module MAX485 converts the TTL signal to RS485 for long-range, high-data-rate error-prone differential communication. Digital communication networks implementing the EIA-485 standard can be effectively used over long distances and in electrically noisy environments. Multiple receivers can be connected to such a network in a linear, multi-drop configuration. These features make such networks useful in industrial environments and similar applications.

 

The modules operate from a standard 5V power supply and utilize 5V logic levels, enabling them to interface to the hardware serial ports of microcontrollers such as Arduino/PIC. The direction of communication can be controlled with just one digital pin. It is also possible to connect multiple modules together for communication between 2 or more Arduinos.