10pcs IR Infrared Line Track Follower Sensor TCRT5000 Obstacle Avoidanc For 1 channel tracing module Automatic Voltage Regulator ARM PIC DC 5V
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10pcs IR Infrared Line Track Follower Sensor TCRT5000 Obstacle Avoidanc For 1 channel tracing module Automatic Voltage Regulator ARM PIC DC 5V