Check out our newest USB serial interface board—the ANDROID-232.
This RS-232 serial adapter for Android devices allows users to control
legacy RS-232 devices directly from modern Android devices. Use your
Android phone or tablet to control serial devices via the USB port. This
small and rugged board comes with industrial operating temperature
(-40°C to +85°C) and a high retention USB connector, perfect for
industrial and military/defense applications.
Also, a hard line wired connection eliminates security concerns associated with Wi-Fi and other radio frequency solutions