Teensylu v0.8 controller
1. 4 pololu stepper driver( X, Y,Z and extruder) interface( no voltage adjuster).
2. Support multiple power supply structure.
- Logical and motor supplied by ATX( 12V 25A power supply with ATX-).
- Motor screw pin 7-35V 5mm(12V 5A power supply motor and logical supply also work).
- Logical part can be supplied 5V by USB.
3. 2 thermistor connector.
4. 2 N-MOSFET drive extruder and heated bed.
5. 1 MOSFET drive cooling fan.
6. 12V and 5V endstops voltage including 4 endstops. The fourth endstop is for extruder emergency stop use.
7. 14 unused pin for future developing. 6 analog and 8 digital( totally compatible with sanguinololu) with following function
- UART1 (RX and TX)
- I2C(SDA and SCL)
- SPI(MOSI, MISO, SCK)
- Analog I/O(6)
1. 2 circuits ADC interface for temperature measurement use. One is for extruder and the other is for heated bed.
2. 3 circuits PWM: one for extruder, one for heated bed and the last one for cooling fan.
3. 4 enstops: X,Y,Z,E can connect mechanical endstops, optical endstops or hoare sensor.
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