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What is the function of ultrasonic sensor?
An ultrasonic sensor is an electronic device that measures the distance of a target object by emitting ultrasonic sound waves, and converts the reflected sound into an electrical signal. Ultrasonic waves travel faster than the speed of audible sound (i.e. the sound that humans can hear).
How accurate is HC SR04?
HC-SR04 Hardware Overview
| Operating Voltage | DC 5V |
|---|---|
| Min Range | 2cm |
| Ranging Accuracy | 3mm |
| Measuring Angle | 15 degree |
| Trigger Input Signal | 10µS TTL pulse |
What kind of motor is a bipolar stepper?
Basically there are two types of stepper motors: bipolar and unipolar. The bipolar stepper motor is a two-phase brushless motor which has two coils (windings), this motor has 4 wires (2 wires for each coil).
Can a buildbotics controller drive a stepper motor?
The Buildbotics CNC Controller provides four bipolar stepper motor drivers. It cannot drive unipolar stepper motors. Fortunately, most stepper motors can be wired up as bipolar motors. Connecting a stepper motor to a Buildbotics CNC Controller requires properly connecting the four wires from the driver to the right wires on the motor.
What are the different modes of stepper motor control?
The popular controlling modes of of the stepper motor are: full step and half step. The full step can be divided into 2 types: one-phase and two-phase. In full step one-phase mode the driver energizes one coil at a time.
How to control the direction of a motor?
In this project we will be controlling the direction of a motor using two ultrasonic ranging sensors. If the right sensor is triggered, the motor will spin counter-clockwise. If the left sensor is triggered, the motor will spin clockwise. If both of the sensors or none of the sensors are triggered at the same time, the motor will not spin