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Build concepts

Practical robot ideas with parts, tradeoffs and a live Builder handoff.

Each concept is written for a specific long-tail robotics problem, then connects directly to RoboHub's BOM, CAD and firmware generator.

Featured concept

Mosquito hunter concept

Contained mosquito trap variants with honest safety boundaries around optical energy.

Open feature
Featured concept

Phone-as-sensor architecture

Use an old phone as the camera, GPS, IMU and compute module for low-cost DIY robots.

Open feature

Build a DIY pool skimmer drone

Step-by-step guide and parts list to build an autonomous pool skimmer robot that collects leaves and bugs from the surface. AliExpress BOM, AI-designed chassis, ESP32 firmware.

DIY pool skimmer dronebuild pool cleaning robotESP32 marine robot
Open concept

E-bike motor wheelchair conversion (Bafang BBS02)

Convert a manual wheelchair into a power-assisted one using a Bafang BBS02 mid-drive motor. Full parts list, torque-sensor integration, 48V battery and safety considerations.

Bafang BBS02 wheelchairpower assist wheelchair conversionDIY motorized wheelchair
Open concept

DIY magnetic window cleaning robot

Build a magnetic window cleaning robot for your apartment building or single-pane windows. Parts list, magnet sizing, ESP32 firmware and edge-detection.

DIY window cleaning robotmagnetic window cleanerHobot DIY alternative
Open concept

ESP32 chicken coop automation

Automate your chicken coop with an ESP32: dawn/dusk door schedule, headcount via Pi camera, water level sensor, IR heater control. Full parts list and code.

ESP32 chicken coopautomatic chicken doorDIY coop automation
Open concept

AI birdfeeder with species identification

Build an AI-powered bird feeder with species identification, photo log and rare-bird seed reward. Parts list, YOLOv8 training tips and Raspberry Pi setup.

AI birdfeedersmart bird feeder DIYYOLO bird species ID
Open concept

DIY grocery cart that follows you

Build a follow-me grocery cart with UWB tracking, 12V hub motors and IR collision avoidance. Parts list and ESP32 firmware. Carries 30kg.

follow me cart DIYUWB grocery cartDIY robot cart
Open concept

Gutter cleaning snake robot

DIY gutter cleaning snake robot. Carbon fiber rod, vacuum/blower head, ESP32-CAM and AI line following. Cheaper and safer than a ladder.

DIY gutter cleaning robotsnake robot gutterESP32-CAM cleaning robot
Open concept

Anti-cat plant defender (humane)

Build a humane anti-cat plant defender with PIR motion sensor, water pump and ESP32. Detects cat-sized intruders, sprays a quick burst of water. Ignores humans.

cat plant deterrent DIYESP32 cat repellenthumane cat deterrent
Open concept