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Update time: 2020-08-04 09:28:45
Creation time: 2018-03-09 14:12:16
Description
Schematic for an Atmega328 based grbl controller with integrated PID control of RPM via a dedicated attiny85.
Design Drawing
schematic diagram
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PCB
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ID Name Designator Footprint Quantity
1 A4988 Stepper Motor Driver Carrier Y_AXIS,X_AXIS,Z_AXIS A4988 STEPPER MOTOR DRIVER CARRIER 3
2 100uF C2,C3,C1 CPOL-RADIAL-100UF-25V 3
3 PC817C OPT_Z,OPT_Y,OPT_X,OPT_Z1 DIP-4 4
4 200R R1,R3,R5,R7 0.125 RESISTOR 4
5 1K R2,R4,R6,R8 0.125 RESISTOR 4
6 ATMEGA328P_PDIP U1 DIP28-300 1
7 HC-49US 16.000MHz Y1 HC49US 1
8 22pF C4,C5 RAD-0.1 2
9 WJ2EDGVC-5.08-2P STEPPER_PWR,MCU_PWR WJ2EDGVC-5.08-2P 2
10 1x4 pin header SENSORS,SPINDLE,CONTROL,X_AXIS_CONN,Y_AXIS_CONN,Z_AXIS_CONN 1X4 PIN HEADER 2.54MM 6
11 ATTINY85-20P U2 PDIP08_300MIL 1
12 100nF C6,C7,C8 CERAMIC-2.54 3
13 NO P1 1X6 PIN HEADER 1

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