www.ply.me.uk panStamp pin numbering

A guide to panStamp pin numbers

Atmega 328P pin	Atmega 328P name	Pin Desc	Arduino Uno R3 physical pin	Arduino pin mapping	panStamp AVR v1 physical pin	Arduino pin mapping	panStamp AVR v2 physical pin	Arduino pin mapping
1	PD3	PCINT19, OC2B, INT1	5	D3, PWM	18	D3, PWM	27	D18, PWM
2	PD4	PCINT20, XCK, T0	- - -	- - -	19	D4	26	D19, PWM
3	GND	GND	- - -	- - -	- - -	- - -	- - -	- - -
4	VCC	VCC	- - -	- - -	- - -	- - -	- - -	- - -
5	GND	GND	- - -	- - -	- - -	- - -	- - -	- - -
6	VCC	VCC	- - -	- - -	- - -	- - -	- - -	- - -
7	PB6	PCINT6, XTAL1, TOSC1	- - -	- - -	- - -	- - -	- - -	- - -
8	PB7	PCINT7, XTAL2, TOSC2	- - -	- - -	- - -	- - -	- - -	- - -
9	PD5	PCINT21, OCB0, T1	11	D5, PWM	20	D5, PWM	25	D20
10	PD6	PCINT22, OC0A, AINO	12	D6, PWM	21	D6, PWM	24	D21
11	PD7	PCINT23, AIN1	13	D7	22	D7	23	D22
12	PB0	PCINT0, CLK0, ICP1	14	D8, PWM	2	D8	4	D14
13	PB1	PCINT1, OC1A	15	D9, PWM	3	D9, PWM	3	D15, LED
14	PB2	PCINT2, SS, OC1B	16	D10, PWM	- - -	- - -	- - -	- - -
15	PB3	PCINT3, OC2A, MOSI	17	D11, SPI MOSI, PWM	BR6¹	MOSI	22	D0, SPI MOSI
16	PB4	PCINT4, SPI MISO	18	D12, SPI MISO	BR5¹	MISO	21	D1, SPI MISO, PWM
17	PB5	PCINT5, SPI SCK	19	D13, LED, SPI SCK	BR4¹	SCK	20	D2, SPI SCK, PWM
18	AVCC	- - -	- - -	- - -	- - -	- - -	- - -	- - -
19	ADC6	- - -	- - -	- - -	11	A6	6	A6
20	AREF	- - -	21	AREF	- - -	- - -	11	AREF
21	GND	- - -	- - -	- - -	- - -	- - -	- - -	- - -
22	ADC7	- - -	- - -	- - -	12	A7	5	A7
23	PC0	PCINT8, ADC0	23	A0	4	D14, A0	10	D8, A0
24	PC1	PCINT9, ADC1	24	A1	5	D15, A1	9	D9, A1
25	PC2	PCINT10, ADC2	25	A2	6	D16, A2	8	D10, A2
26	PC3	PCINT11, ADC3	26	A3	8	D17, A3	7	D11, A3
27	PC4	PCINT12, I²C SDA, ADC4	27	A4, I²C SDA	9	D18, A4, I²C SDA	19	D3, A4, I²C SDA, PWM
28	PC5	PCINT13, I²C SCL, ADC5	28	A5, I²C SCL	10	D19, A5, I²C SCL	18	D4, A5, I²C SCL, PWM
29	PC6	PCINT14, RESET	1	RESET	13	RST	12	RESET
30	PD0	PCINT16, RXD	2	D0, RX	16	D0, UART_RX	17	D5, RXD
31	PD1	PCINT17, TXD	3	D1, TX	17	D1, UART_TX	16	D6, TXD
32	PD2	PCINT18, INT0	4	D2	- - -	- - -	- - -	- - -
¹ Bottom row pins, not numbered.
PORTB maps to Arduino digital pins 8 to 13 The two high bits (6 & 7) map to the crystal pins and are not usable DDRB - The Port B Data Direction Register - read/write PORTB - The Port B Data Register - read/write PINB - The Port B Input Pins Register - read only PORTC maps to Arduino analog pins 0 to 5. Pins 6 & 7 are only accessible on the Arduino Mini DDRC - The Port C Data Direction Register - read/write PORTC - The Port C Data Register - read/write PINC - The Port C Input Pins Register - read only PORTD maps to Arduino digital pins 0 to 7 DDRD - The Port D Data Direction Register - read/write PORTD - The Port D Data Register - read/write PIND - The Port D Input Pins Register - read only See Port Registers https://www.arduino.cc/en/Reference/PortManipulation and Atmega 328 datasheet http://www.atmel.com/

Last updated 30-01-2016

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