Elecbee MCU TTL to RS485 module 485 to serial port UART level conversion Hardware automatic flow control

RS485 automatic flow control module compatible with 3.3V and 5.0V power supply and signal

No need for "receive-send" control, using this module is as simple as operating the serial port

This transparent transmission module realizes the conversion between TTL signal and RS485 signal, but everyone must know that 485 is half-duplex communication, which

can realize two-way communication, but it cannot be carried out in two directions at the same time, and must be carried out alternately; that is, each end of the communication channel can be a sender or a receiver, but at the same time, information can only be transmitted in one direction.

Baud rate: supports 110~128000bps

 

Module features:

(1) This module fully considers the lightning protection design and anti-interference design of the 485 bus. When transmitting over long distances in the wild, connecting the "ground connection" end of the module to the ground can play a good anti-interference and lightning protection role, making the 485 bus safer; it can be disconnected from the ground when transmitting over short distances indoors.

(2) It adopts a standard 2.54 spacing design to facilitate your secondary development

(3) It has a 120 ohm matching resistor. Short-circuiting R0 can enable the matching resistor. It is recommended to short-circuit it for long-distance transmission.

(4) It supports multi-machine communication and allows connection to a bus of up to 128 devices

(5) This module can be hot-swapped, and the signal deadlock phenomenon that occurs when hot-swapping other 485 chips occurs

(6) Large area copper plating to prevent signal interference