1. Product introduction

Keyestudio CNC Kit V2.0

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1.1 Introduction

Keyestudio CNC Shield V2.0 can be used as driver expansion board for engraving machines . It has in total 3 channel slots for A4988 stepper motor driver modules (not included) for driving 3 channel of stepper motors. Each channel of stepper motor only needs 2 IO ports, which means 6 IO ports is sufficient to manage 3 stepper motors. This shield can make quick work for managing stepper motors in your project.

1.2 Specification

  1. Keyestudio CNC Shield Version 2.0

  2. GRBL 0.8c compatible. (Open source firmware that runs on an Arduino V4.0 board that turns G-code commands into stepper signals)

  3. 3-Axis support (X, Y, Z , )

  4. 2 x End stops for each axis (6 in total)

  5. Spindle enable and direction

  6. Coolant enable

  7. Uses removable A4988 compatible stepper drivers. (A4988, DRV8825 and others)

  8. Jumpers to set the Micro-Stepping for the stepper drivers. (Some drivers like the DRV8825 can do up to 1/32 micro-stepping )

  9. Compact design.

  10. Stepper Motors can be connected with 4 pin molex connectors or soldered in place.

  11. Runs on 12V DC.

1.3 Kit List

  • 1x keyestudio CNC Shield V2.0

  • 1x keyestudio V4.0 board

  • 3x A4988 Driver

  • 1x USB Cable

1.4 Connection Diagram

1.5 keyestudio V4.0 Development Board

We need to know keyestudio V4.0 development board, as a core of this smart car.

keyestudio V4.0 development board is an Arduino uno-compatible board, which is based on ATmega328P MCU, and with a cp2102 Chip as a UART-to-USB converter.

It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz quartz crystal, a USB connection, a power jack, 2 ICSP headers and a reset button.

It contains everything needed to support the microcontroller; simply connect it to a computer with a USB cable or power it via an external DC power jack (DC 7-12V) or via female headers Vin/ GND(DC 7-12V) to get started.

Microcontroller

ATmega328P-PU

Operating Voltage

5V

Input Voltage (recommended)

DC7-12V

Digital I/O Pins

14 (D0-D13) (of which 6 provide PWM output)

PWM Digital I/O Pins

6 (D3, D5, D6, D9, D10, D11)

Analog Input Pins

6 (A0-A5)

DC Current per I/O Pin

20 mA

DC Current for 3.3V Pin

50 mA

Flash Memory

32 KB (ATmega328P-PU) of which 0.5 KB used by bootloader

SRAM

2 KB (ATmega328P-PU)

EEPROM

1 KB (ATmega328P-PU)

Clock Speed

16 MHz

LED_BUILTIN

D13