SunFounder ESP32 Starter Kit
• 5.3 Detect the Obstacle (Arduino Project)
• 5.3 Detect the Obstacle (MicroPython Project)
• 2.11 GAME - Shooting (Scratch Project)
• 2.18 GAME - Don’t Tap on The White Tile (Scratch Project)
5.32 Ultrasonic Module
• TRIG: Trigger Pulse Input
• ECHO: Echo Pulse Output
• GND: Ground
• VCC: 5V Supply
This is the HC-SR04 ultrasonic distance sensor, providing non-contact measurement from 2 cm to 400 cm with a range
accuracy of up to 3 mm. Included on the module is an ultrasonic transmitter, a receiver and a control circuit.
You only need to connect 4 pins: VCC (power), Trig (trigger), Echo (receive) and GND (ground) to make it easy to use
for your measurement projects.
Features
• Working Voltage: DC5V
• Working Current: 16mA
• Working Frequency: 40Hz
• Max Range: 500cm
• Min Range: 2cm
• Trigger Input Signal: 10uS TTL pulse
• Echo Output Signal: Input TTL lever signal and the range in proportion
• Connector: XH2.54-4P
• Dimension: 46x20.5x15 mm
Principle
The basic principles are as follows:
752 Chapter 5. Learn about the Components in Your Kit
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