Chat
Welcome to Flux
Treat Flux like your intern. Tell it what you'd like to build and it'll get to work. You can also ask it questions, brainstorm ideas, and teach it your preferences. Learn More
Reviews
Decent Violet Transporter
Properties
Properties describe core aspects of the project.
Pricing & Availability
Distributor | Qty 1 |
|---|
Controls
Welcome 👋
Flux helps you build PCBs faster with an AI teammate!
Create your account to collaborate, stay updated, fork your own version, and get instant answers from our AI agent.
overhaul
copilot
- Power Supply to U2: The A4988 requires a motor supply (VMOT) and a logic supply (VDD). The motor supply voltage (connected to pin 16:VMOT of U2) should be appropriate for your stepper motor (often 8V to 35V). The logic supply voltage (connected to pin 10:VDD of U2) can be sourced from the Arduino Nano's +5V output.
- Ground Connections: Connect all the grounds together to ensure there is a common reference point for all components. This includes U1 pin 4 (COM/GND) or pin 29 (COM/GND__1), to U2 pin 9 (GND) and pin 15 (GND).
Control Connections- Step and Direction:
- Connect U1:6 (D3) to U2:7 (STEP) to control the steps of the motor.
- Connect U1:8 (D5) to U2:8 (DIR) to control the direction of the motor.
- Enable Pin (Optional):
- Connecting U1 to U2:1 (~ENABLE) allows you to turn the motor output on and off from the Arduino. If desired, you can connect this to another free GPIO pin on the Nano (e.g., U1:5 (D2)). Remember, this pin is active low, meaning that driving it low (or connecting it to GND) enables the motor driver, and driving it high disables the motor driver.
Microstepping Resolution (Optional)