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Geeetech 3D Printer RepRap Assembled Sanguinololu Board Kit - Red
The board is designed to be flexible in the user's power source availability£¬ allowing for an ATX power supply to power the board£¬ or the user can choose to install the voltage regulator kit for use with any power supply 7V-30V. The board features a developer friendly expansion port supporting I2C£¬ SPI£¬ UART£¬ as well as a few ADC pins. All 14 expansion pins can be used as GPIO as well. Notes: The Sanguinololu design is excellent but if you are going to run a heat bed the traces on the Sanguinololu board are NOT sufficient to carry the current required to operate the heat bed. Features: 1.Supports multiple communication configurations. Thermistor connectors with circuitry. N-MOSFETs for extruder/bed£¬ or whatever. Selectable 12V(or supply voltage)/5V end stop voltage. Edge connectors enabling right-angle connections. 13 Extra pins available for expansion and development. 6 analog and 8 digital£¬ with the following capabilities£¬ and SD CARD SUPPORT 2. Supports multiple power configurations. Logic & Motors supplied by ATX power supply (needs molex hard drive connector£¬ and optional 4pin atx connector for additional 12v/supply voltage). Logic supplied by USB bus£¬ optional on-board voltage regulator (molex hard drive connector cannot be installed at the same time). Motors supplied by 5mm screw terminal 7-35V 3.Small design - board is 100mm x 60mm - barely an inch longer than a business card 4.Sanguino clone£¬ Atmel's ATmega644P - ATmega1284 drop-in compatible 5.UART1 (RX and TX) 6. I2C (SDA and SCL) 7.SPI (MOSI£¬ MISO£¬ SCK) 8. PWM pin (1) 9.Analog I/O (5) Interface Layout Jumper Instruction£º Boot jumper cap: do remember to put the jumper cap£¬ or it will affect the connection with PC(the system can’t detect the corresponding COM port) and the upload of firmware.