2 layers65 × 30 mm
Rgb to hdmi
hoglet67/RGBtoHDMI
Bare-metal Raspberry Pi project that provides pixel-perfect sampling of Retro Computer RGB/YUV video and conversion to HDMI
33 parts1kGPL-3.0
2 layers94.9 × 71.1 mm
Robot arm
Jorgehsm/SCARA_armBraço robótico com 4DOF baseado em esp32
- Size
- 94.9 × 71.1 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 33
- Nets
- 62
- Pads
- 176
- Tracks, vias
- 185, 0
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 22 Sep 2024
- Updated
- 26 Feb 2025
Overview
Robot arm is an open-source printed circuit board by Jorgehsm, from the Jorgehsm/SCARA_arm repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 94.9 × 71.1 mm with 33 parts on 62 nets, routed with 185 tracks and 0 vias.
Its parts include 20 connectors, 4 capacitors, 4 resistors and 1 IC. It belongs with the robots and motor control boards and the ESP32 boards of this library.
README
README.mdSCARA robotic arm
Braço robótico com 4DOF baseado em esp32.
Utiliza motores de passo com redução por correia para movimento e servo MG996r para controle da pinça.
Projeto pessoal em desenvolvimento
Projeto da placa de circuito
O projeto conta com o design de uma placa de circuitos para conectar o esp32 responsável pela comunicação e controle do robô com a alimentação e drivers dos motores.
Projeto CAD
A estrutura do robô foi pensada para fabricação por meio de impressão 3D juntamente com fuso trapezoidal e eixos de aço para movimento no eixo Z.
A transmissão para demais movimentos foi feita por meio de correias GT2 e polias impressas
A estrutura conta também com rolamentos para adicionar rigidez e auxíliar nos movimentos.
O projeto conta também com o design de uma garra atuada por meio de um motor servo e mecanismo pinhâo cremalheira para sua abertura e fechamento
Parts
33| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | microstepping | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J1, J3, J5, J7, J10, J11, J12, J13 |
| 4 | C | Capacitor_THT:CP_Radial_D6.3mm_P2.50mm | C1, C2, C3, C4 |
| 4 | Pololu_Breakout_DRV8825 | Module:Pololu_Breakout-16_15.2x20.3mm | A1, A2, A3, A4 |
| 4 | R | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal | R2, R3, R4, R5 |
| 4 | motor | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J2, J4, J6, J8 |
| 2 | Screw_Terminal_01x02 | TerminalBlock:TerminalBlock_bornier-2_P5.08mm | J14, J15 |
| 1 | ESP32-DEVKIT-V1 | ESP32-DEVKIT-V1:MODULE_ESP32_DEVKIT_V1 | U1 |
| 1 | I2C | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J16 |
| 1 | SW_PINS | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J19 |
| 1 | SW_V+ | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J20 |
| 1 | fan | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J18 |
| 1 | servo | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J9 |
| 1 | servo 2 | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J21 |
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Questions
How big is the Robot arm PCB?
It measures 94.9 × 71.1 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Robot arm use?
33 parts. 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.
Where can I download the Robot arm KiCad files?
From the Jorgehsm/SCARA_arm repository on GitHub, at the commit this page was made from: the board is robot_arm_board-double_sided/robot_arm.kicad_pcb and its schematic robot_arm_board-double_sided/robot_arm.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Robot arm design in my own project?
Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).