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The Secret for a Freely Walking Robot
The output current is variable by soldering extra resistor on blank pad just below the SANYA label
SD card interface works with FAT16 or FAT32 formatted cards
provides power to Raspberry Pi
Laser Sensor 20kg The Secret for a FreelyLaser Sensor Principle: The emitting part of the laser sensor is a 180KHz oscillator emitted by an oscillator tube, amplified by a triode, the laser tube emits light, and the receiving part receives the returned light intensity from a matching 180KHz receiver tube. Since the laser sensor uses modulation processing, the receiving tube can only accept the reflected light of the same frequency, so the influence of visible light on the reflected laser can
