communication

  1. Peter Simpson

    B4J Library B4X [B4J/B4A] Modbus TCP - WiFi Communication Library

    Hello everyone, Here is a Modbus TCP library designed to work with industrial Modbus WiFi hardware. Using this library, B4X developers can easily connect their B4J/B4A develooed software directly to industrial devices via WiFi (TCP) communications to read and write Modbus data. Using this...
  2. M

    Android Question Modbus TCP - Connect to multiple devices

    Hi everyone I found this library by @Walter95 and it seems pretty cool. I already did some test with a PLC and I’m able to read something. However, my question is: if I have multiple devices (PLC) is it possible to have them all connected simultaneously or I’ve to circle between them...
    • Mike1970
    • Thread
    • communication industrial modbus multiple slaves plc profinet siemens tcp
    • Replies: 0
    • Forum: Android Questions
  3. CorryWestSide

    Android Question Error: java.io.IOException: Error writing 8 bytes at offset 0 length=8 [UsbSerial AND AsyncStreams LIBRARY]

    Here Log when i plug-in and try to start a communication with my otg - USBToIrDa Manufacturer : ARKMICRO ������������������������������������ Product : USB TO IRDA �������������������������������������� Serial : not available DeviceName : /dev/bus/usb/001/014 DeviceClass ...
  4. yo3ggx

    Android Question Wait For with Astream

    Hello everybody. I have the following situation. I'm sending some data over usb serial and I have to wait for an answer from the other party (a hardware device) before sending data again. I want to use Wait For with AsyncStream, but there are situations when the other party does not answer at...
    • yo3ggx
    • Thread
    • astream asyncstreams communication serial usb serial wait for
    • Replies: 2
    • Forum: Android Questions
  5. Humberto

    B4R Question ESP32 serial comunication with bluetooth

    Can I communicate with cellphone through bluetooth with ESP32 ? It´s already implemented ? Thanks
Top