Table 1.

Values of power-consumption of Imote2 when hardware works jointly.

Mode	PXA271 - CPU	CC2420 - Radio module	OV7670 - Image sensor	Total
S0 (Deep-Sleep)	1.8 mW	144 nW	60 μW	1.86 mW
Cp	48.63 mJ 252 msec.	- -	691 pJ 970 μsec	48.63 mJ 253 msec.
S1 (Normal)	193 mW	712 μW	60mW	253.71 mW
CR	- -	- -	6.63 μJ 194 μsec	6.63 μJ 194 μsec
S2 (Receive)	193 mW	78 mW	60 mW	331 mW
S3 (Transmit)	193 mW	78 mW	60 mW	331 mW