Low-Cost, Low-Energy, Wireless Hydrological Monitoring Platform: Design, Deployment, and Evaluation

Table 1

Current and energy consumption figures for major components.

Component	Average current (mA)	Duration of an operation cycle (seconds)	Energy consumption/cycle of operation (mWh)
GSM	35.16	38	2.923
Ultrasonic sensor	20	3.3	0.145
SD card module	17.4	2.44	0.093
MCU + passive components	0.03	3600	0.237