Electronics Bash – Arduino #3 – Steppers and Servos

In this stream, we’ll be looking at:

  • Stepper motor control
  • Serial control
  • The DO…WHILE loop
  • randomness and the random() funciton
  • Probably more!

This is the space where I’ll be posting code samples and circuit layouts sometime in advance of the stream, for those who want to follow along more directly. This is the first stream I’ll be doing this for, so you can expect the formatting and content here to change significantly over time as I figure out how to lay out this space.

Servo Motor Control

This circuit will be used for the following code examples:

Servo Basic

Shows the basic functionality of a Servo attached to pin 9. Steps from 0, to 90 degrees, to 180 degrees and back, pausing for 1 second in between each position.

Show Code

Servo Sweep

This code will sweep the Servo attached to pin 9 back and forth between 0 and 180 degrees using a pair of FOR loops. This is literally the Servo > Sweep example from the Servo library.

Show Code


SERVO CIRCUIT 2. This circuit will be used for the following examples:

Servo Knob

This code will control the position of a Servo attached to pin 9 using the position of a potentiometer attached to pin A0. This is literally the Servo > Knob example from the Arduino IDE.

Show Code

Servo Random

This code will control the position of a Servo attached to pin 9 in a random fashion, demonstrating the random() and randomSeed() functions to generate random numbers:

Show Code

Stepper Motor Control

Arduino bipolar stepper motor control circuit
This circuit will be used for the following test code:

Stepper Knob

This code will control the position of a stepper attached to pins 8, 9, 10, and 11 as shown in the diagram above, using the attached potentiometer. This is literally the Stepper > MotorKnob example from the Arduino IDE.

Show Code

Stepper Speed Control

This code will control the position of a stepper attached to pins 8, 9, 10, and 11 as shown in the diagram above, using the attached potentiometer to control the speed. This is literally the Stepper > speedControl example from the Arduino IDE.

Show Code

Stepper Homing

This code will control the position of a stepper attached to pins 8, 9, 10, and 11 as shown in the diagram above, using a microswitch attached to pin D4 to set a “home” position:

Show Code

Button DriveĀ 

This code will control the position of a stepper attached to pins 8, 9, 10, and 11 as shown in the diagram above, using a pair of buttons attached to pins 6 and 7.

Show Code

Button Go-Stop

This code will control the position of a stepper attached to pins 8, 9, 10, and 11 as shown in the diagram above, using a pair of buttons attached to pins 6 and 7. It will turn in one direction when one button is pressed, turn the other when the other button is pressed, and stop when both buttons are pressed.

Show Code


<< Return to all Electronics Bash Information