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Active buzzer
the sensor output value will increase
high level works
Technical Parameters
mPython board is a teaching and learning tool based on ESP32
Line Follower Sensor Active buzzerIt can be used for tracking line detection. When black is detected, it outputs a high level, and when white is detected, it outputs a low level. Based on the infrared reflection principle, the infrared emitting diode continuously emits infrared rays, and the infrared photoelectric transistor receives the reflected infrared light. Since white has strong infrared reflection and black has weak infrared reflection, black and white lines can be detected.
