4 layers100 × 115 mm
Instrumentation v3
harrymander/fph-snippets-github
C project for Atmel (Microchip) ATSAM4S16B using Freertos. Modules of interest:
157 parts
4 layers100 × 50 mm
Instrumentation
harrymander/fph-snippets-githubC project for Atmel (Microchip) ATSAM4S16B using Freertos. Modules of interest:
- Size
- 100 × 50 mm
- Copper layers
- 4
- Thickness
- 4.69 mm
- Parts
- 74
- Nets
- 93
- Pads
- 359
- Tracks, vias
- 475, 79
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 12 Oct 2026
- Updated
- 12 Oct 2026
Overview
Instrumentation is an open-source printed circuit board by harrymander, from the harrymander/fph-snippets-github repository on GitHub. It is a 4-layer board of 100 × 50 mm with 74 parts on 93 nets, routed with 475 tracks and 79 vias.
It is built around the MAX4466EXK+. Its parts include 28 capacitors, 17 resistors, 13 connectors, 5 ICs and 2 diodes.
Main components
1README
README.mdCode samples
-
recap-instrumentation: Research data collection device.C project for Atmel (Microchip) ATSAM4S16B using Freertos. Modules of interest:
recap-instrumentation/sw/src/sensors.c: sensor reading in timer ISR.recap-instrumentation/sw/drivers/twi-async/twi-async.c: interrupt-driven 'asynchronous' I2C read.
-
recap-usb-reader: Host application for the device above.Cross-platform C++ project for realtime data acquisition and visualisation. Uses Dear ImGui immediate mode GUI framework. GUI and application logic run from the event loop of graphics framework (DirectX on Windows, GLFW on Linux).
Modules of interest:
recap-usb-reader/gui/src/device.hpp: boundary between the device library and the GUI. State pattern.recap-usb-reader/gui/src/observable.hpp: observer pattern used to decouple the device layer from the GUI views.recap-usb-reader/lib/usb-reader/include/recap/usb-reader/reader.hpp: device library interface.
-
swallow-labeller: Tool for annotating recordings from the device. (complete-swallow-labellingbranch).C++, Dear ImGui. Modules of interest:
swallow-labeller/src/gui/task-filter.cpp: defining filters for different items in GUI list. Example of runtime polymorphism.swallow-labeller/src/gui/task-view.cpp, lines 203-346: undo/redo using the command pattern.
Parts
74| Qty | Value | Footprint | References |
|---|---|---|---|
| 14 | 100n | Capacitor_SMD:C_0603_1608Metric | C1, C2, C3, C4, C5, C6, C9, C10, C11, C14, C15, C16, C27, C28 |
| 4 | 1M | Resistor_SMD:R_0603_1608Metric | R10, R11, R12, R13 |
| 4 | 1u | Capacitor_THT:C_Rect_L7.2mm_W4.5mm_P5.00mm_FKS2_FKP2_MKS2_MKP2 | C21, C22, C23, C24 |
| 4 | 2k2 | Resistor_SMD:R_0603_1608Metric | R1, R2, R3, R4 |
| 4 | MountingHole_Pad | MountingHole:MountingHole_3.2mm_M3_Pad_Via | H1, H2, H3, H4 |
| 3 | 1u | Capacitor_SMD:C_0603_1608Metric | C17, C19, C20 |
| 2 | 100p | Capacitor_SMD:C_0603_1608Metric | C25, C26 |
| 2 | 10k | Resistor_SMD:R_0603_1608Metric | R8, R9 |
| 2 | 200k | Resistor_SMD:R_0603_1608Metric | R16, R17 |
| 2 | 20k | Resistor_SMD:R_0603_1608Metric | R14, R15 |
| 2 | 22 | Resistor_SMD:R_0603_1608Metric | R5, R6 |
| 2 | 27p | Capacitor_SMD:C_0603_1608Metric | C7, C8 |
| 2 | 4u7 | Capacitor_SMD:C_0603_1608Metric | C12, C18 |
| 2 | MAX4466 | Package_TO_SOT_SMD:SOT-23-5 | U4, U5 |
| 2 | STATUS | LED_SMD:LED_0603_1608Metric | D1, D2 |
| 1 | 1 | Resistor_SMD:R_0603_1608Metric | R7 |
| 1 | 10u | Capacitor_SMD:C_0805_2012Metric | C13 |
| 1 | 12MHz | Crystal:Crystal_SMD_0603-4Pin_6.0x3.5mm | Y1 |
| 1 | ADCREF | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J11 |
| 1 | EAR | Connector_Audio:Jack_3.5mm_CUI_SJ-3523-SMT_Horizontal | J7 |
| 1 | ERASE | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | JP1 |
| 1 | Ear | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J9 |
| 1 | FerriteBead | Inductor_SMD:L_0805_2012Metric | FB1 |
| 1 | MANUAL | Button_Switch_SMD:SW_SPST_PTS645 | SW2 |
| 1 | MASK | Connector_Audio:Jack_3.5mm_CUI_SJ-3523-SMT_Horizontal | J8 |
| 1 | MAX1167 | Package_SO:QSOP-16_3.9x4.9mm_P0.635mm | U2 |
| 1 | Mask | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J10 |
| 1 | Micro SD | Connector_Card:microSD_HC_Molex_104031-0811 | J13 |
| 1 | RESET | Button_Switch_SMD:SW_SPST_PTS645 | SW1 |
| 1 | SAM4S16B | Package_DFN_QFN:QFN-64-1EP_9x9mm_P0.5mm_EP7.3x7.3mm | U1 |
| 1 | SDP810 | Connector_PinHeader_2.00mm:PinHeader_1x04_P2.00mm_Vertical | J6 |
| 1 | SERIAL | Connector_IDC:IDC-Header_2x05_P2.54mm_Vertical | J12 |
| 1 | SFM3000 | Connector_PinHeader_2.00mm:PinHeader_1x04_P2.00mm_Vertical | J5 |
| 1 | SPEC H2S | Connector_PinHeader_2.54mm:PinHeader_1x09_P2.54mm_Vertical | J4 |
| 1 | STDC | Connector_PinHeader_1.27mm:PinHeader_2x07_P1.27mm_Vertical_SMD | J3 |
| 1 | SWD | Connector_IDC:IDC-Header_2x05_P2.54mm_Vertical | J1 |
| 1 | TLV70233_SOT23-5 | Package_TO_SOT_SMD:SOT-23-5 | U3 |
| 1 | USB | Connector_USB:USB_Micro-B_GCT_USB3076-30-A | J2 |
Questions
How big is the Instrumentation PCB?
It measures 100 × 50 mm and has 4 copper layers, 4.69 mm thick.
What parts does the Instrumentation use?
74 parts, built around the MAX4466EXK+. 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 Instrumentation KiCad files?
From the harrymander/fph-snippets-github repository on GitHub, at the commit this page was made from: the board is recap-instrumentation/hw/board/instrumentation.kicad_pcb and its schematic recap-instrumentation/hw/board-v2/instrumentation-v2.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Instrumentation design in my own project?
Its repository states no licence, so its author keeps all rights: ask harrymander before reusing the design.
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