Modul ini dapat menghubungkan Arduino atau mikrokontroller sejenis ke RS-485. Cocok digunakan untuk komunikasi dengan sensor ModBus. RS485 digunakan untuk Serial Communication dalam jarak yang lebih jauh dibandingkan RS232 atau TTL dan mendukung beberapa unit dalam bus yang sama.
Modul ini memiliki lubang untuk pin header, maupun ujung yang dilapisi timah untuk langsung disolder ke PCB. Membantu Anda membuat produk yang compact dengan PCB custom bikinan sendiri.
No need for "receive-send" control, using this module is as simple as operating the serial port
This transparent transmission module realizes the mutual conversion of TTL signal and RS485 signal , but everyone must know that 485 is half-duplex communication. This communication method can realize two-way communication, but it cannot be carried out in both directions at the same time. It must be Take turns alternately ; that is, each end of a communication channel can be either a sender or a receiver , but information can only travel in one direction at a time.
**Module Highlights:
(1) Wide power supply range: 3.3V~5.5V
(2) 3.3V and 5.0V signals are compatible
(3) Using original imported chips, industrial-grade design, strong anti-interference ability, and more effective 485 lightning protection design, can be used in industrial sites and harsh environments in the field, the working temperature is -40 ℃ to +85 ℃ , the transmission distance can reach kilometers (the test with 850 meters of 2*1.5 cable is recommended to use within 800 meters, if it exceeds 800 meters, please add a repeater)
(4) The half-hole process design is adopted, and the thickness of the board is 0.8mm, which can be easily used as a sub-motherboard, and can also be used as a solder terminal
(5) With RXD and TXD signal indicators, the sending and receiving status can be seen in full view