Multistepper
Multistepper is an open source STM32 PCB design by eddyem: a 4-layer, 113.5 × 105.5 mm board with 234 components (93 distinct parts). It is built around the BME280, STM32F303CBT6, ISO1050DUB, 74HC4051 and more. Filed under sensors.
Code samples and ready projects based on bare-metal STM32
Management of 8 independend steppers ====================================
Eighth stepper could be changed to 8 dependent multiplexed. Based on STM32F303VDT6.
(all GPIO outs are push-pull if not mentioned another)
Each motor have next control signals: EN - enable driver, DIR - rotation direction, STEP - microstepping clock signal, L0 - zero end-switch, L1 - max end-switch (or Cable Select for SPI-based TMC).
Built around
Parts list
234 components, 93 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | BME280 STM32F303VDTx | LQFP-100_14x14mm_P0.5mm | U1 |
| 1 | STM32F303CBT6 ISO1050DUB | SOP-8_6.62x9.15mm_P2.54mm | U2 |
| 1 | ISO1050DUB USBLC6-2SC6 | SOT-23-6 | U3 |
| 1 | 74HC4051 LM4050A(b)EX3-3.3 | SOT-323_SC-70_Handsoldering | U4 |
| 1 | 74HC4051 LM2576-5.0 Texas Instruments | TO-220-5_P3.4x3.7mm_StaggerEven_Lead3.8mm_Vertical | U5 |
| 1 | PC844 LM1117-3.3 | SOT-223-3_TabPin2 | U6 |
| 1 | PC844 74HC4051 | SOIC-16_3.9x9.9mm_P1.27mm | U7 |
| 1 | LM2576HVS-5 LM1117-3.3 | SOT-223-3_TabPin2 | U8 |
| 1 | B0505S-1W B0505S | B0x0xS | Q1 |
| 1 | B0509S-1W IRF9310 | SO-8_3.9x4.9mm_P1.27mm | Q2 |
| 1 | SI2308 DTA114Y | SOT-323_SC-70_Handsoldering | Q3 |
| 1 | 8MHZ NX5032GA-8MHz | Crystal_SMD_5032-2Pin_5.0x3.2mm | Y1 |
| 1 | Prog | PinSocket_1x06_P1.27mm_Vertical | J1 |
| 1 | Buttons/I2C | IDC-Header_2x05_P2.54mm_Vertical | J2 |
| 1 | Screen | IDC-Header_2x05_P2.54mm_Vertical | J3 |
| 1 | ADC2 | JST_PH_B4B-PH-K_1x04_P2.00mm_Vertical | J4 |
| 1 | ADC1 | JST_PH_B4B-PH-K_1x04_P2.00mm_Vertical | J5 |
| 1 | MOT_MUL | JST_PH_B5B-PH-K_1x05_P2.00mm_Vertical | J6 |
| 1 | GPIO | JST_PH_B4B-PH-K_1x04_P2.00mm_Vertical | J7 |
| 1 | USB_B | USB_B_OST_USB-B1HSxx_Horizontal | J8 |
Show 73 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | RS-485 Screw_Terminal_01x03 | TerminalBlock_Phoenix_MKDS-1,5-3_1x03_P5.00mm_Horizontal | J9 |
| 1 | Screw_Terminal_01x02 | TerminalBlock_Phoenix_MKDS-1,5-2_1x02_P5.00mm_Horizontal | J10 |
| 8 | LimS | JST_EH_B4B-EH-A_1x04_P2.50mm_Vertical | J11, J14, J16, J18, J20, J22, J24, J26 |
| 8 | Stepper | JST_EH_B4B-EH-A_1x04_P2.50mm_Vertical | J12, J15, J17, J19, J21, J23, J25, J27 |
| 1 | UART | JST_PH_B3B-PH-K_1x03_P2.00mm_Vertical | J13 |
| 1 | SOLDERJUMPER_2_OPEN CAN | SolderJumper-2_P1.3mm_Open_TrianglePad1.0x1.5mm | JP1 |
| 1 | SOLDERJUMPER_2_OPEN USB5V | SolderJumper-2_P1.3mm_Open_TrianglePad1.0x1.5mm | JP2 |
| 1 | SOLDERJUMPER_2_OPEN MCU | SolderJumper-2_P1.3mm_Open_TrianglePad1.0x1.5mm | JP3 |
| 1 | SOLDERJUMPER_2_OPEN 3V3ADC | SolderJumper-2_P1.3mm_Open_TrianglePad1.0x1.5mm | JP4 |
| 1 | SOLDERJUMPER_2_OPEN 3V3 | SolderJumper-2_P1.3mm_Open_TrianglePad1.0x1.5mm | JP5 |
| 1 | SOLDERJUMPER_2_OPEN Vdrive | SolderJumper-2_P1.3mm_Open_TrianglePad1.0x1.5mm | JP6 |
| 1 | SOLDERJUMPER_2_OPEN Vio | SolderJumper-2_P1.3mm_Open_TrianglePad1.0x1.5mm | JP7 |
| 38 | SolderJumper_3_Open | SolderJumper-3_P2.0mm_Open_TrianglePad1.0x1.5mm | JP8, JP9, JP12, JP16, JP17, JP18, JP19, JP20 +30 |
| 2 | SOLDERJUMPER_2_OPEN SolderJumper_3_Open | SolderJumper-3_P2.0mm_Open_TrianglePad1.0x1.5mm | JP10, JP11 |
| 24 | SolderJumper_2_Bridged | SolderJumper-2_P1.3mm_Open_TrianglePad1.0x1.5mm | JP13, JP14, JP15, JP21, JP22, JP23, JP29, JP30 +16 |
| 1 | SW_DIP_X01 Reset | SW_SPST_FSMSM | SW1 |
| 1 | SW_DIP_X04 Boot | SW_SPST_FSMSM | SW2 |
| 1 | SW_DIP_x01 | SW_DIP_SPSTx01_Slide_6.7x4.1mm_W7.62mm_P2.54mm_LowProfile | SW3 |
| 1 | 5Vusb | TestPoint_THTPad_1.5x1.5mm_Drill0.7mm | TP1 |
| 1 | Vin | TestPoint_THTPad_1.5x1.5mm_Drill0.7mm | TP2 |
| 1 | Gnd | TestPoint_THTPad_1.5x1.5mm_Drill0.7mm | TP3 |
| 1 | 24V 5Vext | TestPoint_THTPad_1.5x1.5mm_Drill0.7mm | TP4 |
| 1 | 3.3V | TestPoint_THTPad_1.5x1.5mm_Drill0.7mm | TP5 |
| 1 | 4.6V 3V3ADC | TestPoint_THTPad_1.5x1.5mm_Drill0.7mm | TP6 |
| 1 | 3.3V 5V | TestPoint_THTPad_1.5x1.5mm_Drill0.7mm | TP7 |
| 1 | Vio | TestPoint_THTPad_1.5x1.5mm_Drill0.7mm | TP8 |
| 8 | stepper_module | stepper_module | XX1, XX2, XX3, XX4, XX5, XX6, XX7, XX8 |
| 8 | SP0505BAHT | SOT-23-6 | D1, D2, D3, D4, D5, D6, D7, D8 |
| 1 | SMBJ30A SS14 | D_SOD-323_HandSoldering | D9 |
| 1 | PESD1CAN SS14 | D_SOD-323_HandSoldering | D10 |
| 1 | 1N5822 SS14 | D_SOD-323_HandSoldering | D11 |
| 2 | B340A SS14 | D_SOD-323_HandSoldering | D12, D13 |
| 3 | SM712_SOT23 SS14 | D_SOD-323_HandSoldering | D14, D15, D17 |
| 1 | SS14 | D_SOD-323_HandSoldering | D16 |
| 5 | SS14 | D_SOD-323_HandSoldering | D18, D19, D20, D21, D23 |
| 2 | MBRS130L | D_SMB_Handsoldering | D22, D27 |
| 1 | PESD1CAN | SOT-23 | D24 |
| 1 | MM3Z7V5 | D_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D25 |
| 1 | 1N5822 | D_DO-201_P3.81mm_Vertical_AnodeUp | D26 |
| 1 | 100U 100u | L_Toroid_Horizontal_D6.5mm_P10.00mm_Diameter7-5mm_Amidon-T25 | L1 |
| 2 | 0.1 6 | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C1, C4 |
| 5 | 0.1 | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C2, C6, C7, C8, C27 |
| 6 | 0.1 | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C3, C5, C9, C13, C15, C18 |
| 2 | 1u | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C10, C12 |
| 1 | 0.1 1u | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C11 |
| 1 | 47u 35V | CP_EIA-6032-28_Kemet-C_Pad2.25x2.35mm_HandSolder | C14 |
| 1 | 47u 6V | CP_EIA-3216-18_Kemet-A_Pad1.58x1.35mm_HandSolder | C16 |
| 1 | 47u 10V | CP_EIA-6032-28_Kemet-C_Pad2.25x2.35mm_HandSolder | C17 |
| 7 | 100u 35V | CP_Radial_D8.0mm_P3.50mm | C19, C20, C21, C22, C23, C24, C25 |
| 1 | 0.1 100u 35V | CP_Radial_D8.0mm_P3.50mm | C26 |
| 1 | 0.1 47u 6V | CP_EIA-3216-18_Kemet-A_Pad1.58x1.35mm_HandSolder | C28 |
| 1 | SE-5R5-D105VYV3C 0.1 | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C29 |
| 1 | 10K 10k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R1 |
| 1 | 4K7 22 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R2 |
| 2 | 330 22 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R3, R9 |
| 1 | 330 7.5 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R4 |
| 1 | 330 5.1 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R5 |
| 3 | 330 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R6, R7, R8 |
| 1 | 330 91k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R10 |
| 1 | 330 10k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R11 |
| 1 | 4K7 47k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R12 |
| 1 | 3K3 47k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R13 |
| 2 | 3K3 330 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R14, R15 |
| 2 | 3K3 22 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R16, R17 |
| 1 | 3K3 120 | R_1210_3225Metric_Pad1.30x2.65mm_HandSolder | R18 |
| 2 | 3K3 4k7 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R19, R20 |
| 6 | 560 100 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R21, R22, R26, R27, R28, R29 |
| 1 | 120 100 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R23 |
| 2 | 560 22 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R24, R25 |
| 1 | 1K5 100 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R30 |
| 2 | 100 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R31, R32 |
| 1 | 10M 1k5 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R33 |
| 15 | 330 | R_Array_Convex_4x0603 | RN1, RN2, RN3, RN4, RN5, RN6, RN7, RN8 +7 |
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