2 layers96.4 × 127.6 mm
2 layers96.4 × 127.6 mm
Bottom layer Panel
vekkax/Braille_Display1A braille learning aid for kids
- Size
- 96.4 × 127.6 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 396
- Nets
- 196
- Pads
- 808
- Tracks, vias
- 1,448, 316
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 3 Sep 2025
- Updated
- 24 Oct 2025
Overview
Bottom layer Panel is an open-source printed circuit board by vekkax, from the vekkax/Braille_Display repository on GitHub. It is a 2-layer board of 96.4 × 127.6 mm with 396 parts on 196 nets, routed with 1,448 tracks and 316 vias.
It is built around the MP2672GD-0000-P, ESD9B3.3ST5G and CMT-0525-75-SMT-TR. Its parts include 52 connectors, 40 capacitors, 28 resistors, 28 diodes and 12 ICs. It belongs with the STM32 boards of this library.
Main components
3MP2672GD-0000-P
QFN-18(2x3)-40℃~+125℃ 2 2A 5.75V QFN-18(2x3) Battery Management ROHSMonolithic Power SystemsBattery Management
ESD9B3.3ST5G
SOD-923(0402)ESD And Surge Protection (TVS/ESD)TECH PUBLICCMT-0525-75-SMT-TR
SMD,5x5mm-40℃~+85℃ 2.8mm 2V~5V 4kHz 5mm 5mm 75dB Electromagnetic Passive (Externally Driven) SMD,5x5mm Buzzers ROHSCUIBuzzers
Parts
396| Qty | Value | Footprint | References |
|---|---|---|---|
| 216 | NPTH | NPTH | KiKit_MB_10_1, KiKit_MB_10_2, KiKit_MB_10_3, KiKit_MB_10_4, KiKit_MB_11_1, KiKit_MB_11_2, KiKit_MB_11_3, KiKit_MB_11_4, KiKit_MB_12_1, KiKit_MB_12_2, KiKit_MB_12_3, KiKit_MB_12_4, KiKit_MB_13_1, KiKit_MB_13_2, KiKit_MB_13_3, KiKit_MB_13_4 +200 |
| 32 | Conn_01x02_Female | Connector_PinSocket_2.54mm:PinSocket_1x02_P2.54mm_Vertical | J10, J10, J10, J10, J11, J11, J11, J11, J12, J12, J12, J12, J13, J13, J13, J13 +16 |
| 24 | ESD9B3.3ST5G | Diode_SMD:D_SOD-923 | D1, D1, D1, D1, D2, D2, D2, D2, D3, D3, D3, D3, D4, D4, D4, D4 +8 |
| 12 | 22uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C18, C18, C18, C18, C19, C19, C19, C19, C21, C21, C21, C21 |
| 12 | Conn_01x03_Male | Connector_JST:JST_PH_S3B-PH-K_1x03_P2.00mm_Horizontal | J16, J16, J16, J16, J17, J17, J17, J17, J20, J20, J20, J20 |
| 8 | 10K | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R2, R2, R2, R2, R7, R7, R7, R7 |
| 8 | 10uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C16, C16, C16, C16, C22, C22, C22, C22 |
| 8 | 1uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C15, C15, C15, C15, C23, C23, C23, C23 |
| 4 | 1.5uH | Inductor_SMD:L_Vishay_IHLP-2525 | L1, L1, L1, L1 |
| 4 | 100nF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C20, C20, C20, C20 |
| 4 | 100nF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C14, C14, C14, C14 |
| 4 | 10k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R4, R4, R4, R4 |
| 4 | 24k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R6, R6, R6, R6 |
| 4 | 28.7k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R3, R3, R3, R3 |
| 4 | 30k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R5, R5, R5, R5 |
| 4 | 330R | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R1, R1, R1 |
| 4 | 4.7uF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C13, C13, C13, C13 |
| 4 | AP7583AQ-33MP-13 | KiCad:SOP65P490X110-9N | IC1, IC1, IC1, IC1 |
| 4 | CMT-0525-75-SMT-TR | CMT-0525-75-SMT-TR:XDCR_CMT-0525-75-SMT-TR | LS1, LS1, LS1, LS1 |
| 4 | Conn_01x02_Male | Connector_JST:JST_PH_S2B-PH-K_1x02_P2.00mm_Horizontal | J21, J21, J21, J21 |
| 4 | Conn_ARM_JTAG_SWD_10 | Connector_PinHeader_1.27mm:PinHeader_2x05_P1.27mm_Vertical | J9, J9, J9, J9 |
| 4 | D | Diode_SMD:D_SOD-323 | D7, D7, D7, D7 |
| 4 | Electromagnets_Layer_2 | Tesis:Electromagnets_Layer_2 | Layer_2, Layer_2, Layer_2, Layer_2 |
| 4 | LOGO | Tesis:LOGO-EIA | G***, G***, G***, G*** |
| 4 | MP2672GD-0000-P | imports:QFN-18_2MMx3MM_MP2672_MNP_MPS | U6, U6, U6, U6 |
| 4 | Q_NMOS_GSD | Package_TO_SOT_SMD:SOT-23-3 | Q1, Q1, Q1, Q1 |
| 4 | STM32C031Gx | imports:QFN50P400X400X60-28N | U5, U5, U5, U5 |
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Questions
How big is the Bottom layer Panel PCB?
It measures 96.4 × 127.6 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Bottom layer Panel use?
396 parts, built around the MP2672GD-0000-P, ESD9B3.3ST5G and CMT-0525-75-SMT-TR. 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 Bottom layer Panel KiCad files?
From the vekkax/Braille_Display repository on GitHub, at the commit this page was made from: the board is Circuit_design/Panelization/Bottom_layer_Panel.kicad_pcb and its schematic Circuit_design/Circuit_design.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Bottom layer Panel design in my own project?
Its repository states no licence, so its author keeps all rights: ask vekkax before reusing the design.