3.3v DC Power Vcc	PS	+3.3V	OUT	1	2	OUT	+5V	PS	5v DC Power
Relay 1 (Music Hd)	I2C SDA	GPIO2	OUT	3	4	OUT	+5V	PS	5v DC Power
Relay 2 (Movies0 Hd)	I2C SCL	GPIO3	OUT	5	6	OUT	GND	PS	Ground
Living Room: 19.4C (66.2F) , 48.0%	PCM GClk	GPIO4	IN	7	8	OUT	GPIO14	UART Txd	Serial Out
Ground	PS	GND	OUT	9	10	IN	GPIO15	UART Rxd	Serial In
Relay 3 (Movies1 Hd)	Gen	GPIO17	OUT	11	12	OUT	GPIO18	PCM Clk	Relay 4 (Movies2 Hd)
Relay 5 (TV Hd)	Gen	GPIO27	OUT	13	14	OUT	GND	PS	Ground
RF Receiver	Gen	GPIO22	OUT	15	16	OUT	GPIO23	Gen	Relay 6 (Backyard Main Light)
3.3v DC Power Vcc	PS	+3.3V	OUT	17	18	OUT	GPIO24	Gen	Relay 7 (Movies3 Hd)
Laundry Motion Detector	SPI MOSI	GPIO10	IN	19	20	OUT	GND	PS	Ground
Relay 8 (Alarm)	SPI MISO	GPIO9	OUT	21	22	OUT	GPIO25	Gen	RF Transmitter
Relay 9 (Family Room)	SPI SClk	GPIO11	OUT	23	24	IN	GPIO8	SPI CE0	Door Bell
Ground	PS	GND	OUT	25	26	IN	GPIO7	SPI CE1	Backyard Motion Detector
Not Used	EEPROM I2C	ID SD	OUT	27	28	OUT	ID SC	EEPROM I2C	Not Used
Relay 10 (MB Server)	GPclk1 *	GPIO5	OUT	29	30	OUT	GND	PS	Ground
Relay 11 (Library Server)	GPClk2 *	GPIO6	OUT	31	32	IN	GPIO12	PWM0 *	IR Transmitter
Relay 12 (Home Theater Server)	PWM1 *	GPIO13	OUT	33	34	OUT	GND	PS	Ground
Relay 13 (Music Server)	PCM FS *	GPIO19	OUT	35	36	OUT	GPIO16	Gen *	Relay 14 (Laundry LED Light)
Relay 15 (Backyard Patio Light)	Gen *	GPIO26	OUT	37	38	OUT	GPIO20	PCM Din*	Relay 16 (DTH11 Switch)
Ground	PS	GND	OUT	39	40	IN	GPIO21	PCM Dout*	Living Room Motion Detector

Pi2b GPIO (105) Pi2u GPIO (108) IoT Pi3b GPIO (106) Pi3g GPIO (107)

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