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flashtree 5pcs HC-SR04 Ultrasonic Module Distance Sensor for Arduino UNO Mega2560 Nano Robot XBee ZigBee Micro Controller
flashtree 5pcs HC-SR04 Ultrasonic Module Distance Sensor for Arduino UNO Mega2560 Nano Robot XBee ZigBee Micro Controller
$8.49

flashtree 5pcs HC-SR04 Ultrasonic Module Distance Sensor for Arduino UNO Mega2560 Nano Robot XBee ZigBee Micro Controller

  特征： 模块外有 4 个引脚：VCC、Trig、Echo、GND。 该模块自动发送八个40 kHz并检测是否有脉冲信号返回，如果信号返回，通过高电平，输出TTL电平信号。 电压：DC5V，静态电流：小于2mA，电平输出：高-5V，电平输出：末端0V，传感器角度：不超过15度，检测距离：2...

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$8.49

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