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2 is a compact 32-bit development board that gives you much more speed and memory than classic AVR boards while staying easy to prototype on a breadboard
Manual&Wiki
obstacle detection
the NRF24L01 module's maximum range is around 100 metres in open space
Seeed Grove Relay - Plug-and-Play Switch Module v2.0 2 is a compact 32-bitSimple Load Switching for Arduino, ESP32, and Automation Builds The Relay Grove is a practical relay module from Circuitrocks for students, makers, and repair friendly builds. It fits well in projects that need switching external loads, while keeping setup straightforward for testing and prototype work. Compared with generic parts, this product stands out through details such as relay module. That makes it a solid choice for Arduino, ESP32, Raspberry
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