Portsdown 5 GPIO Connections

Pin No	BCM No	Wiring Pi	RPi Pri	RPi Alt0	Primary Use	Secondary Use	Notes & GPIO breakout board connections
1	-	-	3.3v	-	-	-	-
2	-	-	5v	-	-	-	-
3	2	8	GPIO 2	SDA1	I2C Control	-	-
4	-	-	5v	-	-	-	-
5	3	9	GPIO 3	SCL1	I2C Control	-	-
6	-	-	0v	-	-	-	-
7	4	7	GPIO 4	GPCLK0	-	-	-
8	14	15	GPIO 14	TXD0	-	-	-
9	-	-	0v	-	-	-	-
10	15	16	GPIO 15	RXD0	-	-	-
11	17	0	GPIO 17	FL1	-	-	-
12	18	1	GPIO 18	SPI6_CE0_N	-	-	-
13	27	2	GPIO 27	SD0_DAT3	"Active" LED	-	-
14	-	-	0v	-	-	-	-
15	22	3	GPIO 22	SD0_CLK	Shutdown Button	-	Active high
16	23	4	GPIO 23	SD0_CMD	-	-	-
17	-	-	3.3v	-	-	-	-
18	24	5	GPIO 24	SD0_DAT0	-	-	-
19	10	12	GPIO 10	SPI0_MOSI	MCP3002	-	-
20	-	-	0v	-	-	-	-
21	9	13	GPIO 9	SPI0_MISO	MCP3002	-	-
22	25	6	GPIO 25	SD0_DAT1	-	(SA Sweep Blank in)	-
23	11	14	GPIO 11	SPI0_SCLK	MCP3002	-	-
24	8	10	GPIO 8	SPI0_CE0_N	CE for MCP3002	-	-
25	-	-	0v	-	-	-	-
26	7	11	GPIO 7	SPI0_CE1_N	-	Noise source	Battery Test Load Switch
27	0	30	ID_SD	SDA0	-	-	DO NOT CONNECT
28	1	31	ID_SC	SCL0	-	-	DO NOT CONNECT
29	5	21	GPIO 5	GPCLK0	spi clock	-	-
30	-	-	0v	-	-	-	-
31	6	22	GPIO 6	GPCLK2	spi data	-	-
32	12	26	GPIO 12	PWM0	-	-	-
33	13	23	GPIO 13	PWM1	-	-	-
34	-	-	0v	-	-	-	-
35	19	24	GPIO 19	SPI6_MESO	-	-	-
36	16	27	GPIO 16	FL0	-	-	-
37	26	25	GPIO 26	SD0_DAT2	-	-	-
38	20	28	GPIO 20	SPI6_MOSI	-	-	-
39	-	-	0v	-	-	-	-
40	21	29	GPIO 21	SPI6_SCLK	TX LED/PTT Drive out	-	-

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