1. Lakhtin_V

    Android Question Local network using the Wi-Fi module of the smartphone.

    I wanted to create a local area network between 3 smartphones, using Wifi modules of the 5th generation. In the future, I wanted to place on one of them a SQL database server that 2 other smartphones can access to it. I won't be using a WiFi router. Only 3 smartphones to work within the range of...
  2. red30

    B4J Question Working with RS-485 to Ethernet converter in B4J

    I have an RS-485 line on which several devices are present. At the end of this line is an RS-485 to USB converter. When I insert this converter into a PC, it is defined as a COM port and I work with these devices using the "Serial" and "AsyncStreams" libraries sp.Initialize("")...
  3. R

    B4R Question Arduino Mega 2560 with Ethernet Shield: boot sketch from SD-Card

    Hi there, I spent a while searching the forum but didn't find hints targeting my question: I want the Mega to boot from a hex-file from the SD card. While it is obviously possible to transfer a compiled sketch to the Arduino Mega via an Ethernet connection, what is necessary to reset the board...