sd card

  1. 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...
  2. MitchBu

    Android Question Detect SD card with (File.ExternalWritable = True) does not seem to work

    I want to show a button only if an SD card is present, so I do: BtnRegisterOpen.Visible = (File.ExternalWritable = True) Unfortunately, the button stays visible, although I removed the SD card. Did I miss something ? Thank you.
  3. R

    Android Question Identify SD card or USB pendrive

    Hi All, I can successfully read folder structure of sd card or usb pendrive like this: Log(File.ListFiles("/storage")) I use only one type of android device, so the /storage is ok. I can sense attaching and removing on the fly. But: The result of the directory listing looks like that...