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See
also Micro-USB Module
See
also Cable to suit
This
device comes with a loose 5 pin right angle connector that must be soldered
to the PCB, if you wish to use the signals that extend from the end of
the board
Product
Overview
The
microUSB (uUSB-MB5) is a USB to RS-232 bridge converter which is simple,
cost effective, very small and easy to use. It uses a mini-B type USB connector
to connect to your PC and is based on the CP2102 Bridge from Silicon Labs.
It provides the user with multi baud rate serial data and access to flow
control signals in a convenient 10 pin 0.1” pitch Dual-In-Line package.
The uUSB-MB5 is ideal for prototype or production.
Main
Features
-
USB 2.0
compliant Full Speed 12Mbps maximum speed; Suspend supported
-
Hardware
or Xon/Xoff handshaking supported; 300bps to 1Mbps
-
UART supports
5-8 bit data, 1-2 Stop bits, odd/even and no parity
-
Integrated
EEPROM for Vendor ID, product ID, serial number, release number
-
On-chip
3.3V regulator available; power on reset circuit
-
Virtual
COM port drivers allow operation with existing COM port PC applications
-
Supports
Windows, MAC (OSX-9 and above) and Linux (2.4 kernel and above)
-
Self powered
or USB powered; -40 to +85 deg C temp range
-
Small
size; 15.4mm x 17.7mm (0.5” x 0.5”) approx.
-
Traffic/Operation
LED indicates board status
figure
1: uUSB-MB5 Pin-Out Diagram
Typical
Applications
The
microUSB (uUSB-MB5) makes an easy USB-Serial interface, so you can easily
create USB to RS-232 converters , USB to RS-422/RS-485 converters , upgrade
legacy RS232 devices, make PDA and cellphone USB interface cables, barcode
readers, POS terminals, etc.
In
any application, make sure the TX and RX lines from the ?USB are crossed
over to the attached peripheral. That is, the TX from the ?USB connects
to the RX of the target and the RX from the ?USB connects to the TX of
the target device.
Note:
the TX and RX signal levels are between 0.0 Volts and 3.3 Volts.
 |
 |
| figure
2: typical interface with a microcontroller |
figure
3: Interface to any 4D serial device such as the uLCD-OLED
and uVGA modules with the extra 5pin header provided |
26-Apr-2006
Feedback to a customer having problems with a GPS system:
Please
ask John the following:
What's
the current consumption of the GPS? If it's more than 100mA he will
need to use this utility
http://www.dontronics.com/zip/microUSB%20CP210xSetIDs.zip
Is
the GPS a standard serial interface, i.e. normal RS232 voltage levels?
The
Rx/Tx signal levels from the micro-USB are 0 to 3.3V levels.
He
can try this as a quick test to see that the uUSB is working.
Attach
the anode of a LED to +3.3V - pin7 then the cathode of the led via a 1K
resistor to the Tx - pin1. Set the baud rate to say 300 or 600 baud and
use Hyperterminal or DockLight type of a serial terminal program to send
any character. Everytime a character is sent the LED should light up briefly.
I
think his problem is the GPS works on 5Volts and expects the Rx/Tx signal
levels to be at 0 to 5V and the uUSB signals are at 3.3Volts.
He
may need to insert 1K resistors in series between the GPS and the uUSB.
He
may wish to send me the data specs of the GPS and I can have a look and
see.
Regards,
Atilla |
Support:
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