Pin Functionality - NEX ROBOTICS SPARK V ATMEGA16 Hardware Manual

5. Pin Functionality

ATMEGA16 microcontroller pin configuration
PINNO Pin name
1 (XCO/T0)PB0
2 (T1)PB1
3 (INT2/AIN0)PB2
4 (OC0/AIN1)PB3
5 (SS)PB4
6 (MOSI)PB5
7 (MISO)PB6
8 (SCK)PB7
9 RESET
10 VCC
11 GND
12 XTAL1
13 XTAL2
14 (RXD)PD0
15 (TXD)PD1
16 (INT0)PD2
17 (INT1)PD3
18 (OC1B)PD4
19 (OC1A)PD5
20 (ICP1)PD6
21 (OC2)PD7
22 PC0(SCL)
23 PC1(SDA)
24 PC2(TCK)
25 PC3(TMS)
26 PC4(TDO)
27 PC5(TDI)
28 PC6(TOSC1)
29 PC7(TOSC2)
30 AVCC
31 AGND
32 AREF
33 PA7 (ADC7)
34 PA6(ADC6)
35 PA5(ADC5)
36 PA4(ADC4)
37 PA3(ADC3)
© NEX Robotics Pvt. Ltd. and ERTS Lab IIT Bombay, INDIA
USED FOR
Logic output 1 for Left motor (Left back)
Logic output 2 for Left motor (Left back)
Logic output 1 for Right motor (Right back)
Logic output 2 for Right motor (Right back)
ISP (In System Programming)
Microcontroller reset
5V
Ground
Crystal 7.3728 MHz
UART Receive*
UART Transmit*
Position Encoder input for Left Motor, TSOP1738
output**
Position Encoder input for Right Motor
PWM output for Left Motor
PWM output for Right Motor
Ultrasonic Trigger Input Left (sensor no. 1) ultrasonic
sensor***
Boot loader switch / Servo Pod output
LCD control line RS (Register Select)
LCD control line RW(Read/Write Select)
LCD control line EN(Enable Signal)
Buzzer
LCD data lines (4-bit mode)
5V
Ground
ADC reference voltage pin (5V external) ****
ADC input for External ultrasonic sensor
ADC input for battery voltage monitoring
ADC input for white line sensor Right
ADC input for white line sensor Center
ADC input for white line sensor Left
SPARK V ATMEGA16 Hardware Manual
Status
Output
Output
Output
Output
Output
Output
Input
Output
Default
--
--
Default
Default
Input
Output
Input
Input
Output
Output
Output
Input /
Output
Output
Output
Output
Output
Output
--
--
--
Input*****
Input*****
Input*****
Input*****
Input*****
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