The ANDROID-232 uses the Android Open Accessory protocol to “convince” an Android device that its on-board USB port (normally limited to USB slave or OTG modes) is actually an RS-232 port. This two-way data port enables external hardware to control the Android unit or the Android unit to control external hardware.
The ANDROID-232’s key features include an Android USB 2.0 full-speed host-to-industry-standard RS-232 DB9M serial port; support for a UART interface with RX, TX, RTS, and CTS; a 5,512-byte RX buffer size; a 256-byte TX buffer size; ±15-kV ESD protection on USB data lines and all RS-232 signals; status and fault LEDs including external power, charging status, and USB status; a Type-A USB connector; a latching 5-V external power input connector with an external regulated power supply; a –40°C-to-85°C standard industrial operating temperature; and RoHS compliance.
The board includes an Android sample program with source code. This program enables you to verify proper operation of the ANDROID-232 device, including sending and receiving RS-232 data. The ANDROID-232’s Python test program can cooperate with the Android sample program to verify proper receipt of transmitted data.
The ANDROID-232 costs $139.
ACCES I/O Products, Inc.
www.accesio.com
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