- CNC Shield BoardVersion: 3.0Color: RedSize(L*W*H): 68 x 53 x 18 mmVoltage: DC 12~36 V (At the moment only the DRV8825 drivers can handle up to 36V so please consider the operation voltage when powering the board.)Features:1. Uses removable A4988 or DRV8825 compatible stepper drivers.2. The extension board can be used for carving machine, 3 d printer driver expansion board3. GRBL 0.8 compatible. (Open source firmware that runs on an Arduino UNO that turns G-code commands into stepper signals)4. PWM Spindle and direction pins,4-Axis support (X, Y, Z , A-Can duplicate X,Y,Z or do a full 4th axis with custom firmware using pins D12 and D13)5. Compact design. Stepper Motors can be connected with 4 pin molex connectors or soldered in place.6. Please note that this is an unassembled kit and Basic soldering skills are needed.- A4988 Stepper Motor DriverColor: RedSize(L*W*H): 20 x 15 x 10 mmThermal shutdown circuitry: YesCrossover-current protection: YesGround fault protection: YesLoad short-circuit protection: YesCompatible logic supply: 3.3V and 5 VFive selectable step modes: full, 1/2, 1/4, 1/8 and 1/16Features:1. Mix with slow current decay modes.2. Internal UVLO and Low RDS (On) Output.3. Automatic current decay mode detection/selection.4. Synchronous rectification for low power dissipation.5. Warning: Connecting or disconnecting a stepper motor while the driver is powered can destroy the driver.- Uno R3 BoardMCU: ATmega328Clock speed: 16 MHzUSB interface: ATmega16U2Operating voltage: 5 VI-I / O pin output current: 40 mA max3.3 V output current: 150 mA maxDigital I/O pins: 14 (including 6 with PWM capability)Analog input pins: 6EEPROM: 1 kBStatic RAM (SRAM): 2 kBFlash memory: 32 kBSize(L*W*H): 68 x 53 x 10 mmClick to download universal coursePackage included:1 x Uno R3 Board1 x CNC Shi
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