Int channel_2 = node.getResponseBuffer(0x0001)
Maintainer: William WoodallThis library provides a C++, object oriented interface for interacting with RS-232 like devices on Linux and Windows.
Result = node.readHoldingRegisters(0x0244, 2) Serial is a cross-platform, simple to use library for using serial ports on computers. Int channel_1 = node.getResponseBuffer(0x0001) Result = node.readHoldingRegisters(0x0050, 2) Can you maybe help me with the code: #include As I am using ModbusMaster library for communication I was reading the documentation how I can write to registers but none of the commands is doing it successfully. UART free for uploading and debug or other runtime communication between. Int channel_2 = node.getResponseBuffer(0x02) ĭo you have any idea what to do i am succesfuly getting the reading from the modbus connection. because the Serial data is directly wired from the USB chip to these pins. Result = node.readHoldingRegisters(0x50, 4) I was just trying to show the response that I get. I can not understand that from the documentation that I have.
Do you maybe know how to access the registers of other channels. After the installation, you can find the Demo of MAX30100 in the LIB library folder of LCD Arduino: Double-click the file to open it. I am able to read channel 1 with the commands in the provided code. Open the Arduino IDE and find the following buttons: Search for 'MAX30100' to find two libraries for MAX30100, then click download and install. Int channel_1 = node.getResponseBuffer(0x01) Result = node.readHoldingRegisters(0x50, 2) Callbacks allow us to configure the RS485 transceiver correctly I managet to make the Modbus connection work with the following sketch. Ok so a question if you can answer it based on the documentation that I provided in the first post. Add codes with the Sketch of UNO to select the mux channesl to select the RS232-1, RS232-2, and RS232-3 devices.
If step-7 works, then connect other RS232 devices one-by-one. Check that some message/data has appeared on the Serial Monitor of UNO.Ĩ. SoftwareSerial SUART(4, 5) //SRX = DPin-4, STX = DPin-5ĭigitalWrite(2, LOW) //UNO-2 is selected via multiplexerħ. Connect RS232-0 device (Top one) to 4052 mux as per wiring of Fig-1.Ħ. Solder one side of a jumper wire at the "minus sid" of C4 and connect other side of the jumper wire with Pin-7 of 4052.ĥ.
(4) With a multi-meter find "minus side ( - )" of C4 (-10V). Solder one side of a jumper wire at the "plus side' of C1 and connect other side of the jumper wire with Pin-16 of 4052. (3) With a multi-meter find "plus side (+)" of C1 (+10V). (2) Complete wiring connection among UNO, TTL RS232 Converter, 4052 MUX as per Fig-1.