Notes.md

• https://thepihut.com/blogs/raspberry-pi-tutorials/how-do-i-power-my-arduino (MOVE TO CIRCUITS FILE)

Libraries Used

• https://github.com/wkoch/Debounce

VS Code for Arduino

• install arduino extension
• to access library manager - f1, then type library manager
• to install custom libraries - install through arduino ide
• setup for arduino type and serial port is on the bottom right of the window - click the plug to change the port
• you can only have one file in a folder at a time to be able to send and run it

Guides Used

• https://maker.pro/arduino/tutorial/how-to-use-visual-studio-code-for-arduino

TM1637 Digit Display

Code

• setSegments(segments[ ], length, position)
• showNumberDecEx(number, dots, leading_zeros, length, position)
• setBrightness(brightness, true/false)

Wiring

Guides Used

• https://www.makerguides.com/tm1637-arduino-tutorial/

Stepper Motor Control with A4988

Code

// turn the motor 5 times
for  (int i = 0; i < 5 * stepsPerRevolution; i++)  {
    // These four lines result in 1 step:
    digitalWrite(stepPin, HIGH);
    delayMicroseconds(500);
    digitalWrite(stepPin, LOW);
    delayMicroseconds(500);
}

Wiring

- Make sure to always connect sleep to reset pin

• Current Limit = V_ref ÷ (8 × Rcs), set this on the pot on the stepper motor driver
• The Rcs is the current sense resistance. Drivers sold after Jan 2017 have 0.068 Ω current sense resistors.
• So this means that for a current limit of 1.5A for a board with 0.068 Ω current sense resistors, the V_ref should be 0.816 mV.

Guides used

• https://www.makerguides.com/a4988-stepper-motor-driver-arduino-tutorial/