Arduino sending data over MAX485 - Arduino Stack Exchange
Jan 31, 2016 · On the Arduino side, you can use the Serial1 (or equal) to write data out to the MAX485, which drives the wires. I suggest again to start with a simplex system, i.e. Arduino only writes data, …
serial - When it comes to UART to RS485 communication, what is the ...
Apr 11, 2021 · The MAX485 module (MAX485 in Banggood) is the more commonly used module for this purpose and has been used in many projects. The MAX485 has the following pins DI (data in), RO …
Differences between two common RS485 to TTL modules
Aug 24, 2022 · Now, what to do with the MAX485 module's control lines? You can connect TXD to DI and RXD to RO, respectively. If your module simply uses the driver chip manufactured by Maxim, the …
How to make I2C work on RS485? - Arduino Stack Exchange
The simplest "Arduino" solution would be to create a new RS485 device on your RS485 bus using another MAX485 and a small Arduino (micro, nano, etc) that responds to MODBUS RTU instructions …
ESP8266: Interfacing MAX485 TTL-to-RS485 on serial port
Apr 30, 2021 · I need to interface MAX485 TTL-to-RS485 to the ESP8266 on different serial pins (other than GPIO3 and GPIO1). Is there a way to configure other pins as Rx and Tx?
Arduino Modbus - Rtu slave with Raspberry pi using MAX-485
I am trying to use Arduino as Modbus- RTU slave and Raspberry Pi as a Modbus master I have interfaced Max485 (RS485 to TTL converter) with Arduino and Rs485 to USB converter in Raspberry …
Arduino RS485 do I need MAX485? - Arduino Stack Exchange
May 13, 2023 · The sensor has RX/TX and +/- wires. Do I still need a component between the RX/TX pin from the Arduino UNO and the sensor itself? All the libraries I reviewed have an additional control …
Connecting multiple RS485 together - Arduino Stack Exchange
May 22, 2019 · I am trying to build communication across multiple Arduino using RS485. When i am trying to connect 3 Arudino nano together using breadboard my code doesn't reach slave where as if …
Controlling VFD with ModBus RTU via RS485 and Arduino
Feb 27, 2020 · I am attempting to control a Folinn VFD (Manual: Manual) with an Arduino Uno via a MAX485 module such as this. Pins for MAX485: DI > D8 DE & RE > D10 RO > D11 VFD …
NodeMCU Modbus interfacing with Pressure Multi-Switch
Jun 3, 2019 · 1 I've been trying to interface between a NodeMCU and a Dotech DPX200 Pressure Multi-Switch over Modbus RS485 using a MAX485 Module for the past few weeks, going through nearly …