Monitoring System Spec.& IO Mapping

This is the sophie SEM2012 Monitoring System Spec.& IO Mapping sheet

I/O	Number of I/O	Measure point
Solar panel	6	VI
Converter	3	VI
Battery	1	VI
Motor driver	1	VI
Motor	1	V, speed( by reed switch )
Total
	12	23+1
Arduino	Number of Analog I/O
Mega2560	16	X2
Total
Mega2560 x2	32
Because of Arduino x2, need 2 analog I/O for I2C communication
Total	Analog I/O used	Number of analog I/O
	27+1	32
Radio Frequency	Features ( data rate )
	4800bps -> 600Bps ->75chars ps
1 point of measurement( e.g. 15.34 ) = 4 digits + dot + space = 6 chars
Total	Measurement (chars)	Data to stream (chars)
	23+1	144
Reading: 144(Data to stream) / 75(bandwidth) = 2
Specifications:		Comment
Point to measurement	23+1
Arduino mega2560 used	2
Analog I/O used	27+1	2 for I2C
Rf module used (pair Tx,Rx)	1
Reading per s	0.5 (2s 1 reading)

I/O diagram
Mega2560 1		Comment
0	RF receiver (RX)	(Option)
1	RF transmitter (TX)
2~13	Spare
14~19	Spare
20	I2C(SDA)
21	I2C(SCL)
22~53	Spare
A0	Converter 1 Voltage
A1	Converter 2 Voltage
A2	Converter 3 Voltage
A3	Converter 1 Current
A4	Converter 2 Current
A5	Converter 3 Current
A6	Battery Voltage
A7	Battery Current
A8	Motor driver Voltage
A9	Motor driver Current
A10	Motor Voltage
A11	Motor Speed	Reed Switch (Option)
A12	Spare
A13	Spare
A14	Spare
A15	Spare
I/O diagram
Mega2560 2(For Debug)		Comment
0	Spare(RX)
1	Spare(TX)
2~13	Spare
14~19	Spare
20	I2C(SDA)
21	I2C(SCL)
22~53	Spare
A0	Solar Panel 1 Voltage
A1	Solar Panel 2 Voltage
A2	Solar Panel 3 Voltage
A3	Solar Panel 4 Voltage
A4	Solar Panel 5 Voltage
A5	Solar Panel 6 Voltage
A6	Solar Panel 1 Current
A7	Solar Panel 2 Current
A8	Solar Panel 3 Current
A9	Solar Panel 4 Current
A10	Solar Panel 5 Current
A11	Solar Panel 6 Current
A12	Spare
A13	Spare
A14	Spare
A15	Spare