Table 2.

ESC different structures with the power consumption of each device according to the operating mode in action.

Device Elements	Operating Mode
	Sleep	Upload	Sampling
Microcomputer	2.3 μA	7.8 mA	2.0 mA
Data logger	0.1 μA	400 μA	400 μA
Real-time clock	1.2 μA	1.2 μA	400 μA
Wake-up circuit	0.8 μA	0.8 μA	0.8 μA
Power module	0.0 μA	100 μA	0.0 μA
Transducer module	60 nA	150 μA	150 μA
Cumulative current	4.5 μA	9.65 mA	2.95 mA