2 layers299.2 × 124 mm
4 layers120 × 120 mm
Yellow
NabuCasa/yellow116Home Assistant Yellow - hardware for Home Assistant which grows with your needs.
- Size
- 120 × 120 mm
- Copper layers
- 4
- Thickness
- 1.59 mm
- Parts
- 322
- Nets
- 376
- Pads
- 1,374
- Tracks, vias
- 3,355, 1,961
- Pours
- 43
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 12 Jan 2021
- Updated
- 25 Jun 2025
Overview
Yellow is an open-source printed circuit board by NabuCasa, from the NabuCasa/yellow repository on GitHub. It is a 4-layer board of 120 × 120 mm with 322 parts on 376 nets, routed with 3,355 tracks and 1,961 vias.
It is built around the 74LVC1G07, BD9D321EFJ-E2 and DF40C-100DS-0.4V, with the FSUSB30MUX, TCMT1107 and B1100-13-F(MS) among its other parts. Its parts include 112 capacitors, 62 resistors, 21 diodes, 16 ICs and 4 inductors. It belongs with the home automation and IoT boards of this library.
Main components
11
74LVC1G07
SOT-353-40℃~+105℃ 1 1 1.65V~5.5V 1.6ns@5.5V,50pF 24mA 4uA 74LVC Open-drain Power-off isolation、Level shifting Unidirectional SOT-353 Buffers, Drivers, Receivers, Transceivers ROHSWuxi I-core ElecBuffers, Drivers, Receivers, Transceivers
BD9D321EFJ-E2
SOP-8-EP-40℃~+85℃@(TA) 1 3A 4.5V~18V 700kHz 700uA 765mV~7V Adjustable Buck Buck Built-in Yes SOP-8-EP DC-DC Converters ROHSROHM SemiconductorDC-DC Converters
DF40C-100DS-0.4V
Board-to-Board/FPC Connector, 100pin, 0.4mm PitchHirose ElectricUncategorised
FSUSB30MUX
MSOP-10-40℃~+85℃ 12ns 13ns 250ps 2:1 3V~4.3V 6.5pF 6.5Ω 720MHz MSOP-10 Analog Switches, Multiplexers ROHSonsemiAnalog Switches, Multiplexers
TCMT1107
SOP-4-1.27mm-40℃~+100℃ 1 1.35V 160% 3.75kV 300mV@1mA,10mA 5.5us@2mA,100Ω 50mA 60mA 6V 70V 7us 80% DC Phototransistor SOP-4-1.27mm Transistor, Photovoltaic Output Optoisolators ROHSVishay IntertechnologyTransistor, Photovoltaic Output Optoisolators
B1100-13-F(MS)
SMASchottky DiodesMSKSEMI
SMTSO2515CTJ
-M2.5X1.5 Tin plated - Patch round nut ROHSSinhooSMD Round Nut
LTST-C19HE1WT
1.6x1.6mm-20℃~+80℃ 0.35mm 1.6mm 1.6mm 1.8V~2.4V 112mcd~450mcd 130° 2.8V~3.9V 2.8V~3.9V 20mA 20mA 20mA 28mcd~180mcd 45mcd~180mcd 468nm 470nm 520nm 525nm 624nm 632nm 75mW 80mW 80mW Common Anode White Lens SMD-4P,1.6x1.6mm RGB LEDs ROHSLite-OnLight Emitting Diodes (LED)
B340LB-13-F(MS)
SMBSchottky DiodesMSKSEMI
BAT41ZFILM
SOD-1231 Independent 100V 100nA@50V 1A 1V@0.2A 200mA SOD-123 Schottky Diodes ROHSSTMicroelectronicsSchottky DiodesCDBQR0130L
SOD-923F-40℃~+125℃ 1 Independent 100mA 10uA@10V 1A 30V 350mV@10mA SOD-923F Schottky Diodes ROHSComchipSchottky Diodes
README
README.mdHome Assistant Yellow
This repository contains the PCB design files of the Home Assistant Yellow. The design has been made using the open source design software KiCad 6.0. The project got successfully crowd funded on Crowd Supply in October 2021. For updated information on availability check yellow.home-assistant.io.
Overview
Home Assistant Yellow is a custom PCB and requires a Raspberry Pi Compute Module 4 (CM4) to be able to run. The PCB is design to run Home Assistant (using Home Assistant OS).
The main features are:
- Raspberry Pi Compute Module 4 (CM4) board-to-board connector
- Silicon Labs MGM210P 802.15.4 capable radio module
- M.2 slot with PCIe x1 connected to the CM4 (e.g. for NVMe storage)
- 12V DC power input
- Gigabit Ethernet with assembly option for PoE+
- USB 2.0 Hub
- TI Audio DAC
- CP2102N bulit-in USB-to-UART converter for serial console
More information about Home Assistant Yellow can be found at yellow.home-assistant.io.
System Design Overview
Parts
322| Qty | Value | Footprint | References |
|---|---|---|---|
| 29 | 100n | Capacitor_SMD:C_0402_1005Metric | C1, C2, C3, C11, C12, C15, C21, C22, C24, C28, C29, C30, C31, C107, C112, C113 +13 |
| 13 | 22u/25V | Capacitor_SMD:C_0805_2012Metric | C13, C42, C43, C97, C98, C99, C100, C101, C102, C103, C104, C105, C106 |
| 13 | TestPoint | TestPoint:TestPoint_Pad_D1.0mm | TP1, TP2, TP3, TP4, TP5, TP6, TP7, TP8, TP9, TP10, TP11, TP12, TP13 |
| 12 | 10k | Resistor_SMD:R_0402_1005Metric | R1, R8, R17, R18, R33, R34, R36, R39, R40, R43, R61, R62 |
| 10 | 10u | Capacitor_SMD:C_0805_2012Metric | C5, C14, C19, C20, C23, C25, C59, C60, C72, C111 |
| 8 | 1k | Resistor_SMD:R_0402_1005Metric | R3, R12, R16, R25, R35, R47, R55, R70 |
| 8 | B1100-13-F | Diode_SMD:D_SMA | D10, D11, D12, D13, D14, D15, D16, D17 |
| 8 | Fiducial | Fiducial:Fiducial_1mm_Mask2mm | FID1, FID2, FID3, FID4, FID5, FID6, FID7, FID8 |
| 6 | 100n/25V | Capacitor_SMD:C_0402_1005Metric | C46, C47, C52, C55, C56, C77 |
| 6 | 33u/25V | Capacitor_SMD:C_1206_3216Metric | C36, C37, C38, C39, C40, C41 |
| 6 | 47u | Capacitor_SMD:C_0805_2012Metric | C17, C18, C61, C62, C63, C64 |
| 4 | 10n/100V | Capacitor_SMD:C_0805_2012Metric | C16, C74, C83, C110 |
| 4 | 1nF/2kV | Capacitor_SMD:C_1812_4532Metric | C90, C93, C114, C115 |
| 4 | 1u/25V | Capacitor_SMD:C_0402_1005Metric | C48, C49, C65, C96 |
| 4 | 2k2/1% | Resistor_SMD:R_0402_1005Metric | R4, R6, R7, R9 |
| 4 | 2u2/100V | Capacitor_SMD:C_1206_3216Metric | C87, C89, C91, C116 |
| 4 | 470R | Resistor_SMD:R_0402_1005Metric | R20, R21, R22, R23 |
| 4 | 49k9 | Resistor_SMD:R_0402_1005Metric | R10, R45, R50, R53 |
| 4 | 74LVC1G07 | Package_TO_SOT_SMD:SOT-23-5 | U18, U19, U26, U27 |
| 4 | D_TVS | Diode_SMD:D_0402_1005Metric | D26, D27, D28, D29 |
| 4 | MountingHole | MountingHole:MountingHole_2.7mm_M2.5 | H1, H2, H3, H4 |
| 4 | SMTSO2515CTJ | Yellow:SMTSO2515CTJ | H7, H8, H9, H10 |
| 4 | TPD4EUSB30 | Package_SON:USON-10_2.5x1.0mm_P0.5mm | U8, U10, U14, U15 |
| 3 | 100n/100V | Capacitor_SMD:C_0805_2012Metric | C79, C82, C84 |
| 3 | 22k/1% | Resistor_SMD:R_0402_1005Metric | R30, R32, R37 |
| 3 | 2u2/25V | Capacitor_SMD:C_0805_2012Metric | C26, C27, C86 |
| 3 | LTST-C19HE1WT | LED_SMD:LED_LiteOn_LTST-C19HE1WT | D7, D8, D9 |
| 2 | 0R | Resistor_SMD:R_0402_1005Metric | R28, R54 |
| 2 | 100R | Resistor_SMD:R_0402_1005Metric | R38, R41 |
| 2 | 10R | Resistor_SMD:R_0402_1005Metric | R27, R51 |
| 2 | 10p | Capacitor_SMD:C_0402_1005Metric | C7, C8 |
| 2 | 10u/25V | Capacitor_SMD:C_0805_2012Metric | C44, C45 |
| 2 | 12k | Resistor_SMD:R_1206_3216Metric | R15, R63 |
| 2 | 1k@100MHz/600mA | Resistor_SMD:R_0805_2012Metric | FB2, FB3 |
| 2 | 1n/100V | Capacitor_SMD:C_0805_2012Metric | C76, C94 |
| 2 | 1u | Capacitor_SMD:C_0402_1005Metric | C6, C69 |
| 2 | 2n2/25V | Capacitor_SMD:C_0402_1005Metric | C108, C109 |
| 2 | 2u2 | Inductor_SMD:L_Taiyo-Yuden_NR-50xx | L2, L5 |
| 2 | 3n3 | Capacitor_SMD:C_0402_1005Metric | C50, C51 |
| 2 | 4u7 | Capacitor_SMD:C_0402_1005Metric | C9, C10 |
| 2 | 5k1 | Resistor_SMD:R_0402_1005Metric | R13, R14 |
| 2 | B340LB-13-F | Diode_SMD:D_SMB | D2, D23 |
| 2 | BAT41ZFILM | Diode_SMD:D_SOD-123 | D20, D21 |
| 2 | BD9D321EFJ | Yellow:HTSOP-8-1EP_3.9x4.9mm_P1.27mm_EP2.4x3.2mm_9ThermalVias | U16, U17 |
| 2 | CDBQR0130L | Diode_SMD:D_0402_1005Metric | D30, D31 |
| 2 | Conn_01x02 | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | JP3, JP4 |
| 2 | Conn_01x03_Male | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | JP1, JP5 |
| 2 | DF40C-100DS-0.4V | Yellow:Hirose_DF40_DF40C-100DS-0.4V_2x50_P0.40mm_Vertical_Virtual | U2, U3 |
| 2 | FSUSB30MUX | Package_SO:MSOP-10_3x3mm_P0.5mm | U5, U6 |
| 2 | MountingHole | Yellow:DrillSlot_Plated_3.5x2.5mm | H5, H6 |
| 2 | TCMT1107 | Package_SO:SOP-4_4.4x2.6mm_P1.27mm | U24, U28 |
| 1 | 0R05/1% | Resistor_SMD:R_1206_3216Metric | R60 |
| 1 | 100R | Resistor_SMD:R_0805_2012Metric | R65 |
| 1 | 100n/25v | Capacitor_SMD:C_0402_1005Metric | C67 |
| 1 | 10u | Inductor_SMD:L_Taiyo-Yuden_NR-50xx | L4 |
| 1 | 124k/1% | Resistor_SMD:R_0402_1005Metric | R29 |
| 1 | 12MHz/10pF | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | 12k/1% | Resistor_SMD:R_0402_1005Metric | R26 |
| 1 | 191k | Resistor_SMD:R_0402_1005Metric | R52 |
| 1 | 1k@100MHz/500mA | Yellow:L_CommonModeChoke_Murata_DLW5B | FL1 |
| 1 | 1n/1kV | Capacitor_SMD:C_1206_3216Metric | C32 |
| 1 | 2.7k/1% | Resistor_SMD:R_0402_1005Metric | R11 |
| 1 | 220R | Resistor_SMD:R_0402_1005Metric | R2 |
| 1 | 220n/100V | Capacitor_SMD:C_0805_2012Metric | C92 |
| 1 | 220n/50V | Capacitor_SMD:C_0805_2012Metric | C75 |
| 1 | 220p/25V | Capacitor_SMD:C_0402_1005Metric | C78 |
| 1 | 220u/25V | Capacitor_Tantalum_SMD:CP_EIA-7343-31_Kemet-D | C95 |
| 1 | 22R | Resistor_SMD:R_0805_2012Metric | R57 |
| 1 | 22k | Resistor_SMD:R_0402_1005Metric | R46 |
| 1 | 24k9/1% | Resistor_SMD:R_0402_1005Metric | R19 |
| 1 | 28R7/1% | Resistor_SMD:R_0402_1005Metric | R42 |
| 1 | 2k | Resistor_SMD:R_0402_1005Metric | R48 |
| 1 | 300R/3A | Resistor_SMD:R_0805_2012Metric | FB1 |
| 1 | 32768Hz/12.5pF | Crystal:Crystal_SMD_3215-2Pin_3.2x1.5mm | Y2 |
| 1 | 33k | Resistor_SMD:R_0805_2012Metric | R64 |
| 1 | 3k3 | Resistor_SMD:R_0805_2012Metric | R44 |
| 1 | 3k3 | Resistor_SMD:R_0402_1005Metric | R56 |
| 1 | 3k6 | Resistor_SMD:R_0402_1005Metric | R5 |
| 1 | 3u3 | Inductor_SMD:L_Taiyo-Yuden_NR-80xx | L1 |
| 1 | 41R2/1% | Resistor_SMD:R_0402_1005Metric | R24 |
The 256 most common of 322 parts.
Questions
How big is the Yellow PCB?
It measures 120 × 120 mm and has 4 copper layers, 1.59 mm thick.
What parts does the Yellow use?
322 parts, built around the 74LVC1G07, BD9D321EFJ-E2, DF40C-100DS-0.4V and FSUSB30MUX. 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 Yellow KiCad files?
From the NabuCasa/yellow repository on GitHub, at the commit this page was made from: the board is Yellow.kicad_pcb and its schematic Audio.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Yellow design in my own project?
Its repository states no licence, so its author keeps all rights: ask NabuCasa before reusing the design.
Similar boards
- 4 layers160 × 62 mm
- 4 layers100 × 100 mm
- 2 layers38 × 24 mm
BMS
SMalasGit/2s-BMS
A repository for a 2s lithium ion BMS that utilizes the BQ28Z620. This IC is an all-in-one chip that features battery protection, cell balancing, battery charging, battery current and voltage monitoring, and gas gauging…
82 parts2 - 2 layers100 × 100 mm
Controller
jft-t/Rotator-Controller
Rotator Controller for SPID BigRAS rotator, suited for use within SatNOGS stations
62 parts1GPL-3.0 - 2 layers100.3 × 100.3 mm
- 2 layers57 × 58.8 mm
5V SMPS with Timer
sanketh0103/5V_SMPS-with-Timer
240V - 5V SMPS 1A Power supply, it has a relay that can be used to control mains powered devices. This PCB can also act as a timed switch.
57 parts - 6 layers187 × 109 mm
