Uctronics K0066, Руководство пользователя

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Arduino Smart Bluetooth Robot Car Kit
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www.uctronics.com
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Input Voltage (limits): 6V-20V
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Digital I/O Pins: 14 (of which 6 provide PWM output)
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Analog Input Pins: 6
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DC Current per I/O Pin: 40 mA
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DC Current for 3.3V Pin: 50 mA
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Flash Memory: 32 KB (ATmega328) of which 0.5 KB used by bootloader
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SRAM: 2 KB (ATmega328)
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EEPROM: 1 KB (ATmega328)
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Clock Speed: 16 MHz
2.2 HC-SR04 Ultrasonic Sensor Module with Bracket / Holder
The HC-SR04 ultrasonic sensor module for Arduino is used for obstacle detection. Ultrasonic
sensor transmits the ultrasonic waves from its sensor head and again receives the ultrasonic
waves reflected from an object.
Ultrasonic sensor general diagram
2.2.1 Working Principle
The ultrasonic sensor emits the short and high frequency signal. These propagate in the air
at the velocity of sound. If they hit any object, then they reflect back echo signal to the