TTL to RS485 module RS485 mutual turn TTL signal single -chip microcontroller automatic automatic hardware automatic

L to RS485 module RS485 mutual transfer TTL signal single -chip machine serial port UART lightning -proof hardware automatic flow control

This transparent module realizes the interoperability of the TTL signal and the RS485 signal, but everyone must know that 485 is a half -work communication. This communication method can achieve two -way communication, but it cannot be carried out at the same time in two directions. It must be at the same time. It must be necessary. It must be.Take turns alternately; in other words, each paragraph of the communication channel can be a sending end or a receiving end, but at the same time, the information can only have one transmission direction.

Implement the automatic flow control of the RS485 signal, automatically switch between the receiving and receiving direction, and the use of this module is as simple as your operation serial port

Potter rate: 110 ~ 256000bps

Module highlights:

(1) Width voltage supply (3.0V ~ 30V), an extreme voltage of 33V. It is recommended to use within 30V, and the low voltage is higher than 2.8V.

(2) Compatible with 3.3V and 5.0V signals can match the module

(3) There are extremely high EMC and EMI properties.

(4) Strong anti-interference ability, and also adopt a powerful 485 lightning protection design with a working temperature of -40 ° C to+85 ° C.

(5) It is very convenient to use with wiring terminals and silicone cables.

(6) Have RXD, TXD signal indicator lights

Module characteristics:

(1) This module has fully considered the lightning protection design and anti -interference design of the 485 bus. The high EMC (electromagnetic compatibility) and EMI (electromagnetic anti -interference) performance.Access to the earth can play a good role in anti -interference and lightning protection, making the 485 bus safer; the indoor short distance transmission can not be connected to the earth.

(2) With standard 2.54 spacing needle, it is convenient for your second development

(3) With 120 euros matching resistance, short -connect R0 can enable the resistance to match the resistance. It is recommended to be short -distance during long -distance transmission.

(4) Support multi -machine communication, the same network can connect at least 40 nodes

(5) The phenomenon of hot insertion can be performed without signal boring

(6) Anti -interference wiring and copper -paving methods to prevent the signal from being disturbed