: Equipped with ultrasonic sensors for obstacle avoidance and cameras for live-streaming, these bots simulate real-world search and rescue operations. Renewable Energy and Green Tech

If you're starting a new project, (What sensors? How many motors? Need TXT 4.0 or older TXT?). Then build the mechanical frame. The modularity means you can reuse 90% of parts across projects — so your initial investment stays "helpful" for years.