a multi-purpose remote I/O (RIO) module for my DIY SCADA
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The example on my pictures shows a unit that has a motion sensor, a light sensor, and a 433Mhz transmitter ( to communicate to Smartwares https://www.smartwares.eu/en-gb/smartwares) packet in a 3D printed case. That case is designed to fit the wired variant of the remote I/O (with the Arduino ethernet shield) as well.
Hi, I used the stock Arduino ethernet library and ran Modbus-TCP/IP:
#include <SPI.h>
#include <Ethernet.h>
#include <ArduinoRS485.h> // ArduinoModbus depends on the ArduinoRS485 library
#include <ArduinoModbus.h>
...
byte mac[] = {...insert MAC...};
IPAddress IP(...insert IP...);
EthernetServer ethServer(502);
ModbusTCPServer modbusTCPServer;
...
BR Stefan
Thank you for your response
My question is about protocol between the Arduino, and the ESP8266, which acts as network processor, or I believe more exactly, TOE (TCP Offload Engine)
Thanks in advance
stefan.schnitzer
geekstips
Adam Porter
hIOTron
AskSensors
Hello. Very interesting project. I want to develop something similar but distributed instead of centralized.
One question: What protocol did you use for communication between microcontroller and network processor?