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DIY robot concept

Robot parts list for autonomous boat

An autonomous boat build needs waterproofing, simple navigation and a recovery plan before advanced autonomy.

A small autonomous boat is a good robotics project because GPS works well outdoors and water removes many wheel-traction problems. The hard parts are waterproofing, power safety and recovery if the boat loses control.

Start with waypoint hold and manual override. Add missions only after the boat can return home and shut down safely.

Core parts

Catamaran hull

$60

Stable platform with room for electronics

Two waterproof thrusters

$90

Differential steering without rudder linkage

Bidirectional ESCs

$45

Forward and reverse thrust control

ESP32 controller

$8

Motor control, telemetry and failsafe

GPS module

$25

Waypoint position

Compass/IMU

$12

Heading hold and turns

Design variants

Pond mapper

Add sonar depth readings and slow grid missions.

Pool test boat

Shrink the hull and use lower-power thrusters for safe testing.

Practical safety note

Treat the generated output as a prototype plan, not a certified product. Body-adjacent, high-voltage, optical-energy and mobility builds need qualified review before real-world use.

FAQ

Do I need a rudder?

No. Two thrusters can steer by differential thrust.

What if it loses signal?

The controller should stop, return home or stay inside a geofence, depending on GPS quality.

How do I test safely?

Start in a pool or small pond with a recovery line attached.

Turn this concept into a sourced build

Start with this prompt prefilled, then let RoboHub generate the live parts list, wiring plan, CAD and firmware.

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