Description: The SparkFun FTDI SmartBasic is a
variation on our classic FTDI Basic board which allows you to connect a
second device to the hardware serial port on an Arduino Pro, Pro Mini,
or other USB-less board without compromising the ability to bootload
code from the Arduino IDE. The FTDI SmartBasic hardware is pretty
simple, it routes the serial signals from any board which uses the
standard FTDI header footprint either to the programming PC via a
USB-to-serial bridge or to any other device with a FTDI header.
Normally, to use a device which requires a serial port resource on an
Arduino board, you would have to use a software serial port or plug and
unplug the device during programming. The SmartBasic board adds a
multiplexer to the serial port pins coming from the Arduino, which
allows the application code to switch the serial signals from the USB
port to another device. No special code is required to enable
The SmartBasic uses the venerable FT232RL chip used on the original
FTDI Basic boards and the TS3USB221A signal multiplexer from TI to make
connecting to multiple serial devices easy. On this board you will find
two main sets of headers, CLIENT (basically the same as the output
header on a standard FTDI Basic board) and HOST (which can enable the
application code to route serial data from the hardware port to either
the USB serial bridge or the device connected to the HOST header). With
this compact design and the power of TIs TS3USB221A multiplexer you
should find no issues switching high-speed USB signals.
- Operating Voltage: 3.3V-5V
- TS3USB221A Multiplexer
- Switches High-Speed USB Signals
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