Jana-Marie/mini-motor-controller13A controller for miniature stepper motors
Mini motor controller is an open-source printed circuit board by Jana-Marie, from the Jana-Marie/mini-motor-controller repository on GitHub, published under the CERN-OHL-S-2.0 licence. It is a 2-layer board of 28.2 × 24.5 mm with 39 parts on 35 nets, routed with 275 tracks and 140 vias.
It is built around the STSPIN220. Its parts include 15 resistors, 13 capacitors, 5 connectors, 3 ICs and 2 diodes. It belongs with the robots and motor control boards and the STM32 boards of this library.
A motor controller for miniature stepper motors, such as used in CD head drives. The additional ADC input allows for position feedback. This project was intended to be used in a DIY motor fader, however this motorfader has not been designed yet.
It features a cheap STM32F030 as brains with I2C as main IO to the host controller, an onboard regulator allows for an input voltage of up to 10V. The motor driver is a STSPIN220 with up to 1.3Arms.
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| Qty | Value | Footprint | References |
|---|---|---|---|
| 9 | 5k1 | otter:R_0402 | R1, R2, R4, R5, R6, R8, R9, R10, R12 |
| 8 | 100n | otter:C_0402 | C2, C3, C5, C6, C7, C8, C9, C13 |
| 3 | 1u | otter:C_0603 | C1, C4, C12 |
| 2 | 22.1k | otter:R_0402 | R3, R13 |
| 2 | R250 | otter:R_0805 | R14, R15 |
| 1 | 10u | otter:C_0805 | C11 |
| 1 | 1k | otter:R_0402 | R11 |
| 1 | 22n | otter:C_0402 | C10 |
| 1 | ADC | Connector_Molex:Molex_PicoBlade_53261-0371_1x03-1MP_P1.25mm_Horizontal | J2 |
| 1 | AP2204R-3.3 | Package_TO_SOT_SMD:SOT-89-3 | U1 |
| 1 | DNP | otter:R_0805 | R7 |
| 1 | FERRET | otter:R_0603 | FB1 |
| 1 | FPC | Connector_FFC-FPC:TE_84953-4_1x04-1MP_P1.0mm_Horizontal | J3 |
| 1 | GREEN | otter:LED_0603_1608Metric | D2 |
| 1 | IN | Connector_Molex:Molex_PicoBlade_53261-0471_1x04-1MP_P1.25mm_Horizontal | J1 |
| 1 | MOT | Connector_Molex:Molex_PicoBlade_53261-0471_1x04-1MP_P1.25mm_Horizontal | J4 |
| 1 | RED | otter:LED_0603_1608Metric | D1 |
| 1 | STM32F030F4Px | Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm | U2 |
| 1 | STSPIN220 | Package_DFN_QFN:VQFN-16-1EP_3x3mm_P0.5mm_EP1.8x1.8mm | U3 |
| 1 | TC2030 | otter:TC2030 | P1 |
stanleyondrus/LaserProjectorV2
LaserProjector V2 is a battery-powered, ESP32-based laser XY scanner using stepper motors to deflect the beam. It has auto-homing functionality, and can be controlled wirelessly (Wi-Fi & Bluetooth).
ISC-HEI/isc-motorbeep
ESP32 board driving two bipolar stepper motors and a speaker from 3x AA cells — a complete KiCad 9 schematic authored headlessly via MCP. ERC-clean, netlist-asserted, priced BOM.
It measures 28.2 × 24.5 mm and has 2 copper layers, 1.6 mm thick.
39 parts, built around the STSPIN220. 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 Jana-Marie/mini-motor-controller repository on GitHub, at the commit this page was made from: the board is mini-motor-controller.kicad_pcb and its schematic mini-motor-controller.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Its repository publishes it under the CERN-OHL-S-2.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
