
Desk display
nepyope/Project-Homunculus
Project Homunculus is open-source, low-cost hardware for capturing human hand and arm motions. It has two parts.

KiCAD test - Op Amp desgin
Piaggio Amp Circuit is an open-source printed circuit board by edWho, from the edWho/Piaggio-Fasts-Forward repository on GitHub. It is a 2-layer board of 60 × 30 mm with 20 parts on 12 nets, routed with 44 tracks and 0 vias.
It is built around the OPA340UA and M20-9990345. Its parts include 3 capacitors, 3 resistors, 2 connectors, 1 IC and 1 diode. It belongs with the audio and music boards of this library.
KiCAD test - Op Amp desgin
| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | Mounting_Holes:MountingHole_3.2mm_M3_Pad | MTG1, MTG2, MTG3, MTG4 | |
| 3 | Fiducials:Fiducial_1mm_Dia_2.54mm_Outer_CopperBottom | FID1, FID2, FID3 | |
| 2 | 0.01nF | Capacitors_SMD:C_0603_HandSoldering | C1, C2 |
| 2 | 5k | Potentiometers:Potentiometer_Alps_RK09K_Horizontal | RV1, RV2 |
| 2 | M20-9990345 | Connectors_Samtec:SL-103-X-XX_1x03 | J1, J2 |
| 1 | 0 | Resistors_SMD:R_0603_HandSoldering | R3 |
| 1 | 0.1nF | Capacitors_SMD:C_0603_HandSoldering | C3 |
| 1 | 20V 500mA | Diodes_SMD:D_SOD-123 | D1 |
| 1 | 250mA | Capacitors_SMD:C_0603_HandSoldering | F1 |
| 1 | 3.3k | Resistors_SMD:R_0603_HandSoldering | R1 |
| 1 | 49.9 | Resistors_SMD:R_0603_HandSoldering | R5 |
| 1 | OPA340UA | Housings_SOIC:SOIC-8_3.9x4.9mm_Pitch1.27mm | U1 |

nepyope/Project-Homunculus
Project Homunculus is open-source, low-cost hardware for capturing human hand and arm motions. It has two parts.

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Projeto-Guarda-Rios/PCB
O repositório para a PCB do Projeto Guarda Rios! Inclui todos os ficheiros relacionados com a PCB!
It measures 60 × 30 mm and has 2 copper layers, 1.6 mm thick.
20 parts, built around the OPA340UA and M20-9990345. 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 edWho/Piaggio-Fasts-Forward repository on GitHub, at the commit this page was made from: the board is Piaggio Amp Circuit.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Its repository states no licence, so its author keeps all rights: ask edWho before reusing the design.