Description
Features
· Arduino UNO Compatible
- 14 digital input/output pins – 6 pins can be used as PWM outputs
- 6 analog inputs
- 16 MHz crystal oscillator
- Operates at 5V
- Recommended input voltage range: 7V to 12V
- Flash Memory: 32 KB (0.5KB used by bootloader)
- SRAM: 2KB
- EEPROM: 1KB
· CNC Shield
- Version 00
- 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)
- 2 x End stops for each axis (6 in total – each axis pair shared by same IO pin)
- Spindle enable and direction connection
- Coolant enable connection
- Uses GRBL as control software
- Power supply: DC 12-36V (only the DRV8825 drivers can handle up to 36V so if using A4988 do not exceed 24V)
- Uses removable stepper drivers (DRV8825 or A4988)
- Stepper Motors can be connected with 4 pins dupont/molex connectors
- Jumpers to set Micro-Stepping
· DRV8825 Stepper Drivers
- Low RDS (ON) outputs
- Automatic current decay mode detection / selection
- Internal UVLO
- Mixed with slow current decay modes
- Synchronous rectification for low power dissipation
- Crossover-current protection
- Thermal shutdown circuitry
- 3 and 5 V compatible logic supply
- Ground Fault Circuit
- Load short-circuit protection
- Six microstepping modes: full, 1/2, 1/4, 1/8, 1/16 and 1/32
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