The module is based on the CP2104 system allows the conversion of data between the USB - UART. With the Converter, you can exchange data between a computer equipped with a USB port, a system with a microcontroller that supports popular serial interface. In addition, the system has a digital output General purpose (GPIO) as the standard goldpin connectors - raster 2.54 mm. CP2104 is compatible with popular FT232, can be, for example, as a programmer for the Arduino.
By default, the working system voltage was 3.45 V, but the module Pololu tolerate higher values, including signals of 5 V. In the operating system, the adapter appears as a virtual COM port that can be used with any terminal or program that supports the standard serial interface RS232. The manufacturer supplies drivers for the operating systems: Windows XP, Windows Vista, Windows 7, Windows 8, Linux, and Mac OS X.
|VDD||Power||3.45 V output voltage|
|VBUS||Power||The voltage of the USB bus (5V)|
|CTS||In||“Clear to send” input|
|RTS||Out||“Ready to send” output|
|DSR||In||"Data set ready" input (active-low state)|
|DTR||Out||"Data terminal ready output (active-low state)|
|DCD||In||"Data carrier detect" input (active-low state)|
|RI||In||"Ring indicator" input (active-low state)|
|SUSPEND||Out||High when USB bus is busy|
|SUSPEND||Out||Low when USB bus is busy|
(output is connected to green led)
|GPIO.0||AND/O||Inputs / outputs digital General purpose|
The module has four digital output pins that can be controlled via the memory ROM type one-time programming. More details in the documentation.
CP2104 system voltage selection, which employs the insights. By default it is set to 3.45 V. to change this value to a lower need rozlutować jumper located at the bottom of the module. To output, VIO can be connected to other, lower voltage of 1.8 V.
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