USB UART
™
Manual
Additional Board
MikroElektronika
All Mikroelektronika’s development systems feature a large number of peripheral
modules expanding microcontroller’s range of application and making the
process of program testing easier. In addition to these modules, it is also
possible to use numerous additional modules linked to the development system
through the I/O port connectors. Some of these additional modules can operate
as stand-alone devices without being connected to the microcontroller.
USB UART
The USB UART additional board is used to connect USB devices to the UART module built into the microcontroller.
Key features:
- Serial data transfer via UART communication;
- 5V DC power supply voltage;
- Low power consumption; etc.
Figure 1:
USB UART additional board
How to connect the board?
The USB UART additional board is connected to USB devices via the USB MINIB connector CN1. Connection with the
microcontroller is established via a 1x6 connector CN2 and 1x9 connector CN3. Jumper J6 is used to select a logic
level to be sent to the VCCIO pin on 1x6 connector CN2. This logic level may be 3.3V or 5V.
CN3
26.92mm
RI
DCD
DSR
DTR
P4
P3
P2
P1
P0
U1
RX-MCU
DTR
RTS-MCU
DTR#
RTS#
VCCIO
OSCI
TEST
AGND
NC
CBUS0
CBUS1
GND
VCC
3V3OUT
VCCIO
C4
100nF
P0
P1
E1
10uF
TX-MCU
RXD
RI#
GND
NC
RX-MCU
TX-MCU
CTS-MCU
RTS-MCU
VCCIO
CN2
RI
DSR
DCD
CTS-MCU
P4
P2
P3
DSR#
DCD#
CTS#
CBUS4
CBUS2
CBUS3
VCC
C2
100nF
Figure 4:
Dimensions of the board
CN1
RESET#
GND
3V3OUT
USBDM
USBDP
USBDP
USBDM
FP1
FERRITE
FT232RL
VCC
3V3OUT
J6
C1
100nF
VCCIO
Figure 3:
USB UART additional board connection schematic
MikroElektronika
22.16mm
TXD
OSCO
MikroElektronika
If you want to learn more about our products, please visit our website at www.mikroe.com
If you are experiencing some problems with any of our products or just need additional information, please place your ticket at
www.mikroe.com/en/support
If you have any questions, comments or business proposals, do not hesitate to contact us at office@mikroe.com