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.
Mosquito hunter concept
Contained mosquito trap variants with honest safety boundaries around optical energy.
Phone-as-sensor architecture
Use an old phone as the camera, GPS, IMU and compute module for low-cost DIY robots.
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.
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.
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.
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.
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.
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.
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.
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.
Robot companions are coming for pets, not just humans
Robot companion modules are extending from humans to pets in 2026. The science behind it, the early products, and what taste-driven design looks like in this category.
How to make a robot arm
How to make a robot arm at home: parts list, servo vs stepper tradeoffs, printable frame, Arduino/ESP32 control, gripper, firmware and safety notes.
How to make a line-following robot
How to make a line-following robot with IR sensors, PID control, motor driver, Arduino/ESP32 firmware and a printable chassis.
How to make a robot dog
How to make a robot dog with 12 servos, ESP32 control, IMU, printed legs, walking gaits and a realistic beginner BOM.
How to make a robot vacuum
How to make a robot vacuum with bumper sensors, suction fan, brush motor, cliff sensors, Arduino/ESP32 firmware and a printable round chassis.
How to make a robot lawn mower
How to make a robot lawn mower with perimeter wire, wheel motors, blade motor, safety cutoff, bumpers, rain sensor and ESP32 firmware.
How to make a solar panel cleaning robot
How to make a solar panel cleaning robot with microfiber roller, water mist, edge rails, geared motors and ESP32 control.
How to make a robot bartender
How to make a robot bartender with peristaltic pumps, ESP32 or Raspberry Pi control, recipe UI, load cell, rinse cycle and food-safe tubing.
How to make a delivery robot
How to make a delivery robot with differential drive, cargo box, GPS waypoint navigation, obstacle sensors, teleoperation and safety notes.
How to make an automatic cat feeder
How to make an automatic cat feeder with auger dispenser, ESP32, load cell, RTC schedule, jam detection and battery backup.
How to make a hydroponic robot
How to make a hydroponic robot with ESP32, pH sensor, EC sensor, peristaltic pumps, LED schedule, water level monitoring and grow alerts.
How to make a humanoid robot
How to make a humanoid robot at home: practical phased design with wheeled base, arms, camera, voice, servos, compute and safety tradeoffs.
How to make a voice-controlled robot
How to make a voice-controlled robot with wake word, Raspberry Pi or ESP32, motor controller, command parser, safety checks and fallback UI.
How to make a robot that follows you
How to make a robot that follows you with UWB tracking, BLE fallback, distance sensors, motor control and safe follow-me behavior.
How to make a security patrol robot
How to make a security patrol robot with camera, rover base, lights, scheduled patrols, teleoperation, motion alerts and safety stops.
How to make an autonomous boat
How to make an autonomous boat with GPS waypoints, twin thrusters, ESP32 or Pixhawk control, waterproofing and manual override.
How to make a robot that sorts objects
How to make a robot that sorts objects with camera vision, conveyor belt, servo gates, bins, Raspberry Pi and calibration steps.
How to make a plant watering robot
How to make a plant watering robot with ESP32, soil moisture sensors, peristaltic pump, reservoir level, leak detection and alerts.
How to make a trash-picking robot
How to make a trash-picking robot with rover base, camera, gripper, object detection, bin and teleoperation-first workflow.
How to make a robot
How to make a robot from scratch: choose the right beginner project, parts, controller, sensors, power system, safety limits and upgrade path.
How to make a robot dog
How to make a robot dog with servo legs, IMU stabilization, ESP32 or Raspberry Pi control, gait testing, battery sizing and safety tradeoffs.
How to make a robot arm
How to make a robot arm with servos or steppers, torque calculations, PCA9685 control, gripper design, power rails and calibration.
How to make a line-following robot
How to make a line-following robot with IR sensors, ESP32 or Arduino, motor driver, PID tuning, calibration and track design.
How to make a self-balancing robot
How to make a self-balancing robot with IMU, motor encoders, PID control, ESP32 or Arduino, battery placement and tuning steps.
How to make a robot vacuum cleaner
How to make a robot vacuum cleaner with bumper sensors, cliff detection, suction fan, brush, coverage behavior, battery and docking basics.
How to make an underwater robot
How to make an underwater robot or ROV with waterproof housing, thrusters, tether, camera, lights, buoyancy and leak testing.
How to make a telepresence robot
How to make a telepresence robot with rover base, tablet mount, WebRTC video, remote joystick, charging dock and privacy controls.
How to make a drawing robot
How to make a drawing robot with steppers, belts, pen lift, Arduino or ESP32 control, SVG plotting and calibration workflow.
How to make a robot car
How to make a robot car with Arduino or ESP32, gear motors, motor driver, battery, obstacle sensors, Bluetooth control and safe wiring.
How to make a rover robot
How to make a rover robot with chassis, gear motors, encoders, GPS, camera, motor drivers, battery sizing and outdoor safety checks.
How to make a sumo robot
How to make a sumo robot with wedge chassis, motors, tires, line sensors, opponent sensors, motor driver and match strategy.
How to make a maze-solving robot
How to make a maze-solving robot with wall sensors, encoders, mapping algorithm, motor control, turn calibration and test maze.
How to make a solar-powered robot
How to make a solar-powered robot with solar panel, charge controller, battery, low-power controller, motors and energy budget.
How to make a delivery robot
How to make a delivery robot with rover base, cargo box, route markers, sensors, battery, remote control and safety limits.
How to make a wall-climbing robot
How to make a wall-climbing robot with suction, magnets, crawler tracks, tether, sensors, power budget and fall safety testing.
How to make a robot hand
How to make a robot hand with 3D printed fingers, tendons, servos, controller, sensors, grip calibration and safety limits.
Best robot kit for beginners
Best robot kit for beginners: what parts to buy, what to avoid, and a simple ESP32 two-wheel robot build path.
Best robot for STEM classroom
Best robot for STEM classroom use: classroom-safe parts, repeatable lesson design and a robust ESP32 robot kit plan.
Best robot for warehouse inventory
Best robot for warehouse inventory: parts list for a shelf-scanning rover with barcode camera, lighting and safe teleop.
Best robot for farm monitoring
Best robot for farm monitoring: build a rugged rover with GPS, camera, soil sensors and LoRa telemetry.
Best robot for elder care reminders
Best robot for elder care reminders: build a local reminder and telepresence rover without medical or emergency claims.
Best robot for crawlspace inspection
Best robot for crawlspace inspection: rugged tracked rover parts list with camera, lights, tether and low-speed control.
Best robot for solar farm inspection
Best robot for solar farm inspection: rover concept with GPS, thermal camera, RGB camera and repeatable row routes.
Best robot for restaurant delivery
Best robot for restaurant delivery: indoor tray rover design with low-speed navigation, bumpers and stable payload.
Robot parts list for Arduino car
Robot parts list for Arduino car builds: chassis, motors, motor driver, battery, sensors and wiring choices.
Robot parts list for Raspberry Pi rover
Robot parts list for Raspberry Pi rover builds with camera, ESP32 motor controller, power system and chassis.
Robot parts list for ESP32 robot arm
Robot parts list for ESP32 robot arm: servos, stepper options, power supply, frame and control interface.
Robot parts list for autonomous boat
Robot parts list for autonomous boat: hull, thrusters, GPS, compass, ESP32, battery and waterproof enclosure.
DIY robot kit for kids
DIY robot kit for kids: safe starter parts, no-solder wiring, block coding options and durable robot design.
DIY robot kit for adults
DIY robot kit for adults: recommended architecture for a serious ESP32 or Raspberry Pi rover project.
DIY robot kit for warehouse
DIY robot kit for warehouse prototypes: payload rover parts, safety controller, sensors and data logging plan.
DIY robot kit for agriculture
DIY robot kit for agriculture: rugged rover chassis, GPS, camera, LoRa, solar and field-safe wiring.
Cheapest robot arm parts list
Cheapest robot arm parts list for a compact servo arm with ESP32, PCA9685, printed frame and gripper.
Cheapest robot dog parts list
Cheapest robot dog parts list: 12-servo quadruped with ESP32, PCA9685, IMU and printed frame.
Arduino robot car parts list
Arduino robot car parts list with motor driver, chassis, battery, sensors and beginner-friendly upgrade path.
Raspberry Pi security robot parts list
Raspberry Pi security robot parts list: camera rover with lights, dock, motion alerts and safe remote control.
Best servo motors for robot arm
Best servo motors for robot arm builds: torque sizing, metal gear choices, power supply needs and cheap upgrade paths.
Best motor driver for robot car
Best motor driver for robot car builds: TB6612FNG, DRV8833, BTS7960 and when to avoid L298N.
ESP32 robot parts list
ESP32 robot parts list with motor driver, sensors, battery, buck converter and beginner-friendly rover architecture.
Raspberry Pi camera robot parts
Raspberry Pi camera robot parts: Pi, camera, ESP32 motor controller, lights, chassis and power system.
Robot chassis kit for adults
Robot chassis kit for adults: what to look for in rover frames, wheelbases, mounting plates and upgrade paths.
Tracked robot chassis kit
Tracked robot chassis kit guide: when to use tracks, motor sizing, tensioning and inspection robot parts.
LiDAR vs ToF sensor for robot
LiDAR vs ToF sensor for robot builds: compare cost, range, mapping use cases and beginner-friendly choices.
Robot battery pack guide
Robot battery pack guide for DIY robots: Li-ion vs LiPo, voltage, current, fuses, BMS and buck converters.
Best geared motors for robot
Best geared motors for robot builds: TT motors, N20 motors, planetary gear motors and wheelchair motors compared.
Best wheels for robot car
Best wheels for robot car builds: rubber wheels, omni wheels, mecanum wheels and caster choices.
Robot arm gripper parts list
Robot arm gripper parts list: servo gripper, linkage, fingertips, force sensing and lightweight end effector choices.
Robot vacuum parts list
Robot vacuum parts list for DIY builds: motors, suction fan, bumper switches, cliff sensors, brush roller and battery.
Waterproof robot parts suppliers
Waterproof robot parts suppliers and buying checklist for marine, pool and outdoor robotics builds.
Robot dog servo buying guide
Robot dog servo buying guide for 8-servo and 12-servo quadruped builds with power and torque advice.
Autonomous rover sensor kit
Autonomous rover sensor kit guide: encoders, IMU, ToF, GPS, LiDAR, camera and telemetry tradeoffs.
Robot power distribution board guide
Robot power distribution board guide: fuses, buck converters, switches, current sensors and safe wiring.
Best camera for robot vision
Best camera for robot vision: Pi Camera, USB camera, ESP32-CAM, depth camera and lighting tradeoffs.
Cheap LiDAR for robot navigation
Cheap LiDAR for robot navigation: what to buy, what to avoid and how to pair it with encoders and IMU.
Best motor controller for wheelchair robot
Best motor controller for wheelchair robot builds using 24V motors, current limiting, e-stop and safety controller.
Open source robot parts suppliers
Open source robot parts suppliers checklist: standard parts, public drawings, replacement motors and documented electronics.