The ultrasound sensor measures the distance between itself and the surface of water. This sensor is frequently used in similar applications, such as measuring liquid level or detecting presence. The sensor emits ultrasonic waves which rebound in the water and offers the system the distance between the node and the water. The water level of the river can be known by applying simple calculations.

Spesification

CPU                                     : ATMega328P 2KB SRAM 1KB EEPROM microprocessors

Clock Speed                       : Up to 20 MHz

RF Comm Interface          : Quad-band GSM / GPRS module, 800/900 /1800/1900 MHz

Temperature                     : -40°C ~ +80°C with <0~90% RH

Soil Moisture                     : 0-100% m3/m3, Accuracy : 2%0-50%;

                                               Output signal: 4-210Ma, 0-5V, 0-2V, Respone Time: 1a

LVDT                                    : Length sensing 10mm

Accelerometer                  : 3-D Angular Velocuty, Range: 16g

                                               Resolution: 6.1e-5g, Attitude Stability Measurement: 0.01

Dimension                          : 400 x 600 x 200 mm (LxWxH)

Power Supply                    : Grid Mode: AC 220V

Offgrid Mode                    : Solar Panel 100WP 12VDC

Battery                                : 65 AH Lithium Ion