
Mechaduino Hardware KiCad
IDMIL/Mechaduino-Hardware-KiCad
An updated KiCad port of Tropical Labs' open-source industrial servo.

Custom Closed-Loop Driver for Stepper Motors
Motor is an open-source printed circuit board by ErnestWang31, from the ErnestWang31/CLND1 repository on GitHub, published under the MIT licence. It is a 2-layer board of 42 × 42 mm with 52 parts on 69 nets, routed with 1,277 tracks and 86 vias.
It is built around the ATSAMD21G18A-MF, AS5047D and A4954, with the SPX3819S, BSS138 and AO3401A among its other parts. Its parts include 15 capacitors, 12 resistors, 9 connectors, 4 ICs and 4 transistors. It belongs with the robots and motor control boards and the SAM D and SAM boards of this library.
Custom Closed-Loop Driver for Stepper Motors
| Qty | Value | Footprint | References |
|---|---|---|---|
| 10 | 0.1uF | NewLibCool:0603_C | C1, C2, C3, C4, C5, C6, C7, C11, C13, C14 |
| 6 | 10K | NewLibCool:0603_R | R7, R8, R9, R10, R11, R12 |
| 4 | 3.3K | NewLibCool:0603_R | R1, R2, R3, R4 |
| 4 | CONN_1 | NewLibCool:O_5.6_3mm | P1, P1, P1, P1 |
| 3 | BSS138 | NewLibCool:SOT-23 | Q1, Q2, Q3 |
| 2 | 0.1R | NewLibCool:0805_R | R5, R6 |
| 2 | 10pF | NewLibCool:0603_C | C9, C10 |
| 2 | LED | NewLibCool:0603_LED | D2, D3 |
| 1 | 100uF | Capacitor_SMD:CP_Elec_6.3x5.4_Nichicon | C15 |
| 1 | 1uF | NewLibCool:0603_C | C8 |
| 1 | 32.768KHz | NewLibCool:OSC_32.768_Mini | Y1 |
| 1 | 4.7uF | NewLibCool:0603_C | C12 |
| 1 | A4954 | Package_SO:TSSOP-16-1EP_4.4x5mm_P0.65mm | U1 |
| 1 | AO3401A | NewLibCool:SOT-23-L | Q4 |
| 1 | AS5047D | Package_SO:TSSOP-14_4.4x5mm_P0.65mm | U4 |
| 1 | ATSAMD21G18A-MF | NewLibCool:QFN-48-1EP_7x7mm_P0.5mm_ATSAMD21G18 | U2 |
| 1 | BAT54C | NewLibCool:SOT-23 | D1 |
| 1 | CONN_01X03 | NewLibCool:JLINK3 | P2 |
| 1 | CONN_01X04 | Connector_JST:JST_PH_S4B-PH-SM4-TB_1x04-1MP_P2.00mm_Horizontal | J1 |
| 1 | CONN_01X04 | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J3 |
| 1 | Conn_01x06_Male | Connector_JST:JST_XH_B6B-XH-A_1x06_P2.50mm_Vertical | J2 |
| 1 | ENTER | NewLibCool:SWITCH_PUSH | SW1 |
| 1 | MENU | NewLibCool:SWITCH_PUSH | SW2 |
| 1 | NEXT | NewLibCool:SWITCH_PUSH | SW3 |
| 1 | RESET | NewLibCool:switchx3x4 | SW4 |
| 1 | SPX3819 | NewLibCool:SOT23-5 | U3 |
| 1 | USB_C__USB2.0 | NewLibCool:USB-Type-C-NEW | P1 |

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It measures 42 × 42 mm and has 2 copper layers, 1.6 mm thick.
52 parts, built around the ATSAMD21G18A-MF, AS5047D, A4954 and SPX3819S. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
From the ErnestWang31/CLND1 repository on GitHub, at the commit this page was made from: the board is 5 Previous Version/1 Hardware/motor.kicad_pcb and its schematic 5 Previous Version/1 Hardware/motor.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).