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Table of Contents
Oak: Using an Ultrasonic Sensor
Currently a Work in Progress
In this lesson, we will connect an ultrasonic sensor to the Oak. An ultrasonic sensor, using the properties of sound, not only detect an object, but also how far away the object is. The sensor generates a high frequency sound, then listens to the echo received back to the sensor. The time interval from send to receive allows you to calculate the distance.
Components
| Part | Quantity | Identification |
|---|---|---|
| Oak with soldered headers | 1 | |
| Breadboard | 1 | |
| Ultrasonic Sensor | 1 | US-100 Y401 |
| Jumper wires | 6 |
Note: The HC-SR04 sensor is NOT being used in this tutorial as it uses 5v. Instead a US-100 sensor, which operates with 3.3v is used.
Particle.publish will be used to send the sensor data to the cloud. To view the data, you will need a free Particle account, which you can get here if you done have one already: https://build.particle.io/signup.
Concepts
PulseIn
Particle.publish
Circuit
Code
Conclusion
