Table 2 Specifications of IoT-integrated components for HAB monitoring.

From: Spatiotemporal modelling and monitoring of harmful algal blooms using IoT in Lake Victoria Basin Kenya

Component

Function

Technical specifications

Raspberry Pi model 3B + 

Single-board computer for data processing and system control & monitoring

1.4 GHz quad-core ARMv8 64-bit processor, operates as a server, runs Raspberry Pi OS

DHT11 air temperature sensor

Measures lake surface air temperature (LSAT)

Range: 0–50 °C, Accuracy: ± 2 °C, Input Voltage: 3.3–5.0 V,

Requires 10KΩ pull-up resistor and filtering capacitor

Neo-6 M-ublox GPS sensor

Collects (x, y) coordinate location data

Receives GPS signals at 1575 MHz, provides precise location for LSAT data collection

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