Data Sheet

Smart WIFI Robot Car Kit for Arduino
8
www.uctronics.com
2.1.2 Specification
Working voltage: 5V DC
Output signal: Electric frequency signal
Static current: < 2mA
Output voltage: 0V（no obstacle）,5V(obstacle in range)
Sensor angle: <= 15°
Echo signal: output TTL PWL signal
High precision: Up to 0.3cm
Input trigger signal: 10us TTL impulse
Detection distance: 2-450cm
Mode of connection: VCC, trig (T), echo, GND
2.1.3 Wiring diagram:
HC-SR04 Ultrasonic Sensor Module
UNO
VCC
5V
Trig
A2
Echo
A3
GND
GND
2.2 L293D Motor Drive Expansion Board