
Cpu010
thorpej/pg68k
The 68k Playground, a 680x0-based home-brew computer with multiple CPU options

Nó de motor Klipper para braço SCARA: RP2040-Zero + TMC2209/DM556, face única fresada
Scaranode is an open-source printed circuit board by DanielMTorres7, from the DanielMTorres7/scaranode repository on GitHub, published under the CERN-OHL-S-2.0 licence. It is a 2-layer board of 76 × 64 mm with 42 parts on 41 nets, routed with 122 tracks and 0 vias.
It is built around the 74ACT245M, RP2040-ZERO and TMC2209, with the P6KE30A among its other parts. Its parts include 14 resistors, 9 connectors, 8 capacitors, 3 ICs and 3 diodes. It belongs with the robots and motor control boards and the RP2040 boards of this library.

Placa de nó de motor Klipper para braço SCARA: RP2040-Zero + TMC2209 (NEMA 17) e/ou driver externo DM556 (NEMA 23), cada um com STEP/DIR/enable próprios. Face única, 76 × 64 mm, feita para fresar em casa.
| Projetista | Revisão | Data | Estado |
|---|---|---|---|
| Daniel M. Torres | v18 | 27/09/2026 | Validada: 124 pinos, ERC e paridade 0, DRC de cobre sem erro, nenhuma curva de trilha de 90° |
📘 Manual completo · 📄 PDF · 🧾 Lista de materiais · 🔧 Montagem · ⚙️ Klipper · 🎛️ Painel web (como usar)
hardware/ placa e esquemático KiCad (ScaraNode.kicad_pro / .kicad_pcb / .kicad_sch + bibliotecas do projeto)
production/ arquivos para fabricar: gerber/, furação, BOM.csv
firmware/ configuração Klipper de referência; painel/ = painel web de bancada + firmware MicroPython
docs/ manual (Markdown + PDF), imagens, histórico de revisõesAbra hardware/ScaraNode.kicad_pro no KiCad 10: esquemático (ScaraNode.kicad_sch) e placa
(ScaraNode.kicad_pcb). As tabelas de biblioteca do projeto (sym-lib-table, fp-lib-table) apontam para as
bibliotecas padrão do KiCad 10 e para as próprias: ScaraNode.kicad_sym (RP2040-Zero, StepStick, 74ACT245, diodos)
e ScaraNode.pretty (soquetes do RP2040-Zero e do StepStick). Os comandos para
regerar Gerber e furação estão em docs/03-fabricacao.md.
Placa e esquemático foram gerados e conferidos por uma ferramenta própria em Python, que não faz parte deste
repositório (a paridade placa × esquemático é verificada pelo kicad-cli; a sincronização pela interface —
"Atualizar placa a partir do esquemático" — não foi testada). Os arquivos KiCad são completos e editáveis sem ela.
Hardware sob CERN-OHL-S-2.0 (ver LICENSE). Fotos de terceiros em docs/img/componentes/
mantêm as licenças listadas em CREDITOS.md.
Modelos 3D das peças: bibliotecas oficiais do KiCad. Fotos de componentes: Wikimedia Commons, com
autores e licenças em docs/img/componentes/CREDITOS.md.
| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | 10k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R4, R5, R6, R7, R11, R12, R13, R14 |
| 5 | 100nF | Capacitor_THT:C_Disc_D3.0mm_W1.6mm_P2.50mm | C1, C2, C3, C6, C7 |
| 4 | M3 | MountingHole:MountingHole_3.2mm_M3 | H1, H2, H3, H4 |
| 2 | 100k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R3, R15 |
| 2 | 10nF | Capacitor_THT:C_Disc_D3.0mm_W1.6mm_P2.50mm | C4, C5 |
| 2 | 1k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R2, R8 |
| 1 | 1N5822 | Diode_THT:D_DO-201AD_P12.70mm_Horizontal | D1 |
| 1 | 24V | Connector_Phoenix_MSTB:PhoenixContact_MSTBA_2,5_2-G-5,08_1x02_P5.08mm_Horizontal | J5 |
| 1 | 470uF 35V | Capacitor_THT:CP_Radial_D10.0mm_P5.00mm | C10 |
| 1 | 47k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R9 |
| 1 | 5k6 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R10 |
| 1 | 74ACT245 | Package_DIP:DIP-20_W7.62mm_Socket_LongPads | U2 |
| 1 | DM556 | Connector_JST:JST_XH_B4B-XH-A_1x04_P2.50mm_Vertical | J4 |
| 1 | FAN 24V | Connector_JST:JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J7 |
| 1 | FAN2 24V | Connector_JST:JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J9 |
| 1 | FIM1 | Connector_JST:JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J1 |
| 1 | FIM2 | Connector_JST:JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J2 |
| 1 | LED 24V | LED_THT:LED_D5.0mm | D3 |
| 1 | MOTOR | Connector_Phoenix_MSTB:PhoenixContact_MSTBVA_2,5_4-G-5,08_1x04_P5.08mm_Vertical | J6 |
| 1 | NTC1 | Connector_JST:JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J3 |
| 1 | NTC2 | Connector_JST:JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J8 |
| 1 | P6KE30A | Diode_THT:D_DO-15_P10.16mm_Horizontal | D2 |
| 1 | RP2040-Zero | ScaraNode:RP2040-Zero_Socket | U1 |
| 1 | TMC2209 | ScaraNode:StepStick_Socket | U4 |
| 1 | UART | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | JU |
It measures 76 × 64 mm and has 2 copper layers, 1.6 mm thick.
42 parts, built around the 74ACT245M, RP2040-ZERO, TMC2209 and P6KE30A. 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 DanielMTorres7/scaranode repository on GitHub, at the commit this page was made from: the board is hardware/ScaraNode.kicad_pcb and its schematic hardware/ScaraNode.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).

thorpej/pg68k
The 68k Playground, a 680x0-based home-brew computer with multiple CPU options





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