Underwater Imaging LTE-M/NB-IoT Telemetry System

Underwater camera housing, buoy unit and their PCBs

Droid Technologies designed and developed a complete underwater imaging and remote telemetry system for capturing photographs at depths of 30–50 meters and transmitting images and telemetry data to the AWS cloud.

The system consists of a waterproof underwater camera unit and a surface communication buoy. Images are transferred from the underwater unit to the buoy through a wired connection. The buoy then sends images and telemetry to AWS using LTE-M / NB-IoT connectivity with MQTT and HTTPS protocols.

Droid Technologies delivered the complete product development cycle, including hardware design, firmware development, mechanical design, PCB development, waterproof enclosure engineering, camera integration, cellular connectivity, and system testing.

Our engineers also designed the camera illumination system, performed lighting calculations, and optimized LED positioning to achieve reliable image quality in low-light underwater conditions.

Key features and engineering scope:

• Operation at 30–50 m underwater depth
• Digital camera and image acquisition
• Wired underwater data communication
• LTE-M / NB-IoT connectivity
• MQTT and HTTPS protocols
• AWS cloud integration
• Custom PCB and hardware design
• Embedded firmware development
• LED lighting and optical calculations
• Power management
• Waterproof and pressure-resistant mechanical design
• Complete hardware, firmware, and mechanical integration

This project demonstrates Droid Technologies’ expertise in underwater electronics, marine IoT, embedded imaging systems, LTE-M/NB-IoT development, MQTTS/HTTPS communication, AWS-connected devices, and waterproof product design.

Droid Technologies provides hardware design services, firmware development services, mechanical design services, PCB design, embedded systems development, IoT development, prototyping, and full-cycle electronic product development from concept to production.