Comment développer son premier robot de zéro avec un budget limité
Guide pratique pour choisir un premier robot réaliste, comparer Arduino, ESP32, Raspberry Pi, Jetson, moteurs, drivers, capteurs, batteries, logiciel, sécurité, budget et limites réelles d’un projet robotique low cost.
Category: DIY robotics Published: 2026-06-29
Budget levels
- 40 to 90 USD: line follower or two-wheel obstacle-avoidance robot with ESP32 or Arduino compatible board, DC motors, driver and basic sensors.
- 120 to 280 USD: mobile robot with encoders, optional USB camera, stable obstacle avoidance, simple odometry and protected battery.
- 300 to 700 USD: basic ROS 2 robot with camera, encoders, IMU and low-cost 2D LiDAR when the budget allows.
Build order
- Choose one simple mission such as following a line, avoiding an obstacle or moving one meter and returning.
- Test motors, driver current, power rails and emergency stop before adding complex perception.
- Add sensors one by one, close the loop with encoders and log battery voltage, driver temperature and trajectory error.
- Upgrade to ROS 2 only when separate programs for sensing, control and navigation need structured messages.
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