Thinklabs UNIBOARD V1.1, User Manual

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Hardware Connections
The uNiBoard version 1.1 connects to the PC using USB port. As shown in the figure 1.1 on the board there is
a serial port and USB port connectors. The serial port is used for debugging purpose while USB port is used
for power and burning the hex files into ATmega128 microcontroller.
The USB cable (for power/programming purposes) and serial cable can be interfaced with the PC. The serial
cable is optional as we are not using it for programming the hex file into the Atmega128 chip. For any UART
related activities having the serial cable is a must.
Programming
Jumper
Programming
connector for
USB
programmer
LDR
Jumper
8 Sensor
inputs
Program
Enable/UART0
Selection
switch
USB power
switch
Test
LEDs
PORT
Ext Power
Connector
UART 0
USB
Port
Serial Port
(UART 1)
Motor 1
Motor 2
Joystick/Ext. ADC
switch
Reset switch
ADC
PORT
JTAG
PORT
PORTC
USB
programmer
FRC
Cable
LDR
RTC
RTC Backup
battery
LCD
connector
Joystick
PORTG
connector
8 LED’s
SW4, SW3,
SW2, SW1
switch i/p’s
4 SPI
Lines
Buzzer
beneath
Controller
8 GND
lines
8 VCC
lines