HardLabs

MosaicCore HAT (1)

MAHESH-THILAK-K·ADDITIONAL-PROJECT·MosaicCore HAT/OTHER FILES/MosaicCore HAT (1).kicad_pcb

MosaicCore HAT (1) layout, top view — open source Raspberry Pi board by MAHESH-THILAK-K

About the MosaicCore HAT (1)

MosaicCore HAT (1) is an open source Raspberry Pi PCB design by MAHESH-THILAK-K, published on GitHub under the Apache-2.0 license. It is a 4-layer board measuring 65 × 56.5 mm, with 37 components from 20 distinct parts.

Its main chip is the raspberrypi_hat_OX40HAT, from the Raspberry Pi family. Other key parts include the mosaic-X5, LD1117AS33TR, SN74AVC4T245PW and SN74LVC1G126DRLR. By type, the board carries 9 diodes, 7 connectors, 7 capacitors, 5 resistors, 4 ICs and 2 jumpers.

It belongs with the dev boards & breakouts designs in this gallery.

From the project

🧩 Overview · ✨ Features · 🔩 Architecture · 📐 PCB Specs · 📦 BOM · 🚀 Quickstart · 📁 File Tree · 🗺 Roadmap · 🤝 Contribute

🧩 Overview · ✨ Features · 🔩 Architecture · 📐 PCB Specs · 📦 BOM · 🚀 Quickstart · 📁 File Tree · 🗺 Roadmap · 🤝 Contribute

MosaicCore HAT is a modular, open-source edge compute attachment board engineered for multi-protocol sensor fusion, real-time data aggregation, and field-deployed embedded processing. Designed ground-up in KiCad on a hardened 4-layer stackup, it bridges the gap between raw sensor nodes and compute platforms — aggregating UART, SPI, I²C, and USB protocol streams onto a single, EMI-suppressed board with zero unrouted connections and full DRC clearance.

Main components on the MosaicCore HAT (1)

mosaic-X5LD1117AS33TRSN74AVC4T245PWSN74LVC1G126DRLR

MosaicCore HAT (1) bill of materials (BOM)

37 components, 20 distinct parts.

QtyPartRefs
1
mosaic-X5
U1
1
LD1117AS33TR
U2
1
SN74AVC4T245PW
U3
1
SN74LVC1G126DRLR
U4
2
Conn_Coaxial
J1, J2
1
USB_B_Micro
J3
1
raspberrypi_hat_OX40HAT
J4
1
Conn_01x04_Male
J5
1
Conn_01x06_Male
J6
1
Conn_01x02_Male
J7
1
ECMF02-2AMX6
FL1
2
Jumper_NC_Dual
JP1, JP2
3
MBRX120LF-TP
D1, D2, D3
5
LED
D4, D5, D6, D7, D8
1
D_TVS
D9
2
39nH
L1, L2
4
100nF
C1, C3, C4, C5
2
10uF
C2, C6
1
un-assembled
C7
5
R330
R1, R2, R3, R4, R5

MosaicCore HAT (1) design files

The KiCad project lives in the MAHESH-THILAK-K/ADDITIONAL-PROJECT repository on GitHub; these links point at the commit this page was built from.

MosaicCore HAT (1): common questions

What microcontroller does the MosaicCore HAT (1) use?

The MosaicCore HAT (1) is built around the raspberrypi_hat_OX40HAT, from the Raspberry Pi family.

How big is the MosaicCore HAT (1)?

The MosaicCore HAT (1) measures 65 × 56.5 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the MosaicCore HAT (1)?

37 components, from 20 distinct parts. The full bill of materials is listed on this page.

Where can I download the MosaicCore HAT (1) design files?

From the MAHESH-THILAK-K/ADDITIONAL-PROJECT repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the MosaicCore HAT (1) design in my own project?

Yes, under the terms of its Apache-2.0 license, which MAHESH-THILAK-K chose for the repository.

Can I test firmware for the MosaicCore HAT (1) without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug Raspberry Pi firmware against it before you order a PCB.

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