

PicoHome2
Raspberry Pi Pico Home Automation - PCB
- Size
- 99.1 × 99.1 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 36
- Nets
- 78
- Pads
- 216
- Tracks, vias
- 402, 12
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 28 Oct 2024
- Updated
- 29 Oct 2024
Overview
PicoHome2 is an open-source printed circuit board by skmatik, from the skmatik/picohomepcb repository on GitHub. It is a 2-layer board of 99.1 × 99.1 mm with 36 parts on 78 nets, routed with 402 tracks and 12 vias.
It is built around the WIZ850IO, MCP41010-E/P and PC817X1NIP1B, with the BSS138 and BC847 among its other parts. Its parts include 11 connectors, 8 resistors, 4 ICs, 4 transistors and 2 capacitors. It belongs with the RP2040 boards of this library.
Main components
5WIZ850IO
插件,25x23mm10Mbps、100Mbps 132mA 2.97V~3.63V Short-Circuit Protection、Data encryption、Built-in signature detection、Thermal Protection、Overvoltage Protection Plugin,25x23mm Ethernet Modules ROHSWIZNETEthernet ModulesMCP41010-E/P
PDIP-8-40℃~+125℃ 1 10kΩ 1LSB 1MHz 1uA 2.7V~5.5V 256 52Ω、73Ω 800ppm/℃ Linear SPI Soft reset、Power-on reset、Mute function ±20% PDIP-8 Digital Potentiometers ROHSMicrochip TechnologyDigital PotentiometersPC817X1NIP1B
SMD-4P-30℃~+100℃ 1.2V 200mW 3us 4us 50mA 50mA 5kV 6V 80V SMD-4P Transistor, Photovoltaic Output Optoisolators ROHSSharp MicroelectronicsTransistor, Photovoltaic Output OptoisolatorsBSS138
SOT-23-55℃~+150℃ 1 N-channel 1.1Ω@10V、1.2Ω@4.5V 1.2V 1.7nC@10V 17.5pF 340mA 350mW 50V 6.5pF N-Channel SOT-23 MOSFETs ROHShongjiachengMOSFETsBC847
SOT-231 NPN 100MHz 100mA 100nA 110 200mW 45V 500mV 6V NPN SOT-23 Bipolar (BJT) ROHSShikuesBipolar (BJT)
README
README.mdpicohomepcb
Raspberry Pi Pico Home Automation - PCB
Schematics

PCB

Parts
36| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | 10k | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R1, R2, R3, R4, R6, R7 |
| 3 | BSS138 | Package_TO_SOT_SMD:SOT-23 | Q1, Q2, Q3 |
| 2 | 1uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C2 |
| 1 | 1-Wire | Wago 233-503:233-503 | J3 |
| 1 | 1k | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R8 |
| 1 | 4k7 | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R5 |
| 1 | AT-Pressure | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J6 |
| 1 | BC847 | Package_TO_SOT_SMD:SOT-23 | Q4 |
| 1 | DH1 | MountingHole:MountingHole_3.2mm_M3 | DH1 |
| 1 | DH2 | MountingHole:MountingHole_3mm | DH2 |
| 1 | DH3 | MountingHole:MountingHole_3.2mm_M3 | DH3 |
| 1 | DH4 | MountingHole:MountingHole_3mm | DH4 |
| 1 | GH-Relay | Wago 233-502:233-502 | J11 |
| 1 | LCD | Connector_PinSocket_2.54mm:PinSocket_1x04_P2.54mm_Vertical | J8 |
| 1 | LED | LED_SMD:LED_1206_3216Metric_Pad1.42x1.75mm_HandSolder | D1 |
| 1 | M7 | M7:SMA&slash_DO-214AC_DTC | D2 |
| 1 | MCP41010 | MCP41010:SOIC8-N_MC_MCH | U3 |
| 1 | Out-Sensors | Wago 233-504:233-504 | J7 |
| 1 | PC817X1NIP1B | PC817:PC817XI_SHP | U4 |
| 1 | Pico | RPI Pico:RPi_Pico_SMD_TH | U1 |
| 1 | Power | Wago 233-502:233-502 | J10 |
| 1 | RTC | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J5 |
| 1 | Rotary-Enc | Connector_PinSocket_2.54mm:PinSocket_1x05_P2.54mm_Vertical | J9 |
| 1 | SRD-05DC-SL-C | Relay_THT:Relay_SPDT_SANYOU_SRD_Series_Form_C | K1 |
| 1 | Serial | Wago 233-504:233-504 | J1 |
| 1 | W-Pressure | Wago 233-503:233-503 | J2 |
| 1 | WH-Term | Wago 233-502:233-502 | J4 |
| 1 | WIZ850io | WIZ850io:WIZ850io | U2 |
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Questions
How big is the PicoHome2 PCB?
It measures 99.1 × 99.1 mm and has 2 copper layers, 1.6 mm thick.
What parts does the PicoHome2 use?
36 parts, built around the WIZ850IO, MCP41010-E/P, PC817X1NIP1B and BSS138. 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 PicoHome2 KiCad files?
From the skmatik/picohomepcb repository on GitHub, at the commit this page was made from: the board is PicoHome2.kicad_pcb and its schematic PicoHome2.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the PicoHome2 design in my own project?
Its repository states no licence, so its author keeps all rights: ask skmatik before reusing the design.