6 layers64.2 × 17.3 mm
OpenRX panel rev2.2
OpenDrone-hw/OpenRX
OpenRX open-source ExpressLRS receiver family hub; board sources live in four dedicated hardware repositories.
254 parts489CERN-OHL-S-2.0
4 layers75 × 32 mm
LaundrySensor
samomat05/LaundrySensorMy first ever PCB design
- Size
- 75 × 32 mm
- Copper layers
- 4
- Thickness
- 1.63 mm
- Parts
- 29
- Nets
- 39
- Pads
- 157
- Tracks, vias
- 277, 47
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 16 Jul 2026
- Updated
- 16 Jul 2026
Overview
LaundrySensor is an open-source printed circuit board by samomat05, from the samomat05/LaundrySensor repository on GitHub. It is a 4-layer board of 75 × 32 mm with 29 parts on 39 nets, routed with 277 tracks and 47 vias.
It is built around the ESP32-C3FH4 and AMS1117. Its parts include 11 capacitors, 8 resistors, 4 switches, 3 connectors and 2 ICs. It belongs with the ESP32 and RISC-V boards of this library.
Main components
2
ESP32-C3FH4
QFN-32-EP(5x5)160MHz 32 Bit 3V~3.6V 400KB RISC-V Watchdog reset、Software reset、Built-in general-purpose timer、Programmable watchdog、Built-in temperature sensor、True random number generator (TRNG)、Storage encryption、Infrared remote control QFN-32-EP(5x5) Microcontrollers (MCU/MPU/SOC) ROHSEspressif SystemsMicrocontrollers (MCU/MPU/SOC)
AMS1117
1.0 A Low-Dropout Fixed RegulatorAdvanced Monolithic SystemsUncategorised
README
README.mdLaundry Sensor PCB
This is my first ever PCB design, this was designed to use an ESP-32 microcontroller and interface with an ADXL-345 accelerometer. THIS DESIGN DOES NOT WORK AS INTENDED and is only to document my progress. I will be redesigning this.
Schematic
ik this is bad
Routing/Trace Layout
3D Render
Parts
29| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | 1uF | PCM_JLCPCB:C_0603 | C3, C4, C5, C6, C7 |
| 4 | 10kΩ | PCM_JLCPCB:R_0603 | R3, R4, R5, R8 |
| 2 | 22pF | PCM_JLCPCB:C_0603 | C9, C10 |
| 2 | 5.1kΩ | PCM_JLCPCB:R_0603 | R1, R2 |
| 2 | C | Capacitor_SMD:C_0603_1608Metric | C2, C8 |
| 1 | 0Ω | PCM_JLCPCB:R_0603 | R7 |
| 1 | 100uF | PCM_JLCPCB:C_CASE-B-3528-21(mm) | C11 |
| 1 | 10uF | PCM_JLCPCB:C_CASE-A-3216-18(mm) | C1 |
| 1 | 4.7kΩ | PCM_JLCPCB:R_0603 | R6 |
| 1 | 40MHz, 15pF | PCM_JLCPCB:OSC-SMD_4P-L3.2-W2.5-BL_SIT8008BI | X1 |
| 1 | AMS1117 | PCM_JLCPCB:SOT-223-3_L6.5-W3.4-P2.30-LS7.0-BR | U1 |
| 1 | BOOT | PCM_JLCPCB:SW_TS-1088-AR02016 | S2 |
| 1 | Calibration | Button_Switch_Keyboard:SW_Cherry_MX_1.00u_PCB | SW2 |
| 1 | Conn_01x08_Pin | Connector_PinHeader_2.54mm:PinHeader_1x08_P2.54mm_Vertical | J2 |
| 1 | Connector, USB-TYPE-C-16P | PCM_JLCPCB:TYPE-C-SMD_HX-TYPE-C-16PIN | J1 |
| 1 | EN | PCM_JLCPCB:SW_TS-1088-AR02016 | S1 |
| 1 | ESP32-C3FH4 | PCM_JLCPCB:QFN-32-1EP_5x5mm_P0.5mm_EP3.7x3.7mm_ThermalVias | U2 |
| 1 | NetRst | Button_Switch_Keyboard:SW_Cherry_MX_1.00u_PCB | SW1 |
| 1 | U.FL | PCM_JLCPCB:IPEX-SMD_BWIPX-1-001E | J3 |
Questions
How big is the LaundrySensor PCB?
It measures 75 × 32 mm and has 4 copper layers, 1.63 mm thick.
What parts does the LaundrySensor use?
29 parts, built around the ESP32-C3FH4 and AMS1117. 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 LaundrySensor KiCad files?
From the samomat05/LaundrySensor repository on GitHub, at the commit this page was made from: the board is LaundrySensor.kicad_pcb and its schematic LaundrySensor.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the LaundrySensor design in my own project?
Its repository states no licence, so its author keeps all rights: ask samomat05 before reusing the design.
Similar boards
- 4 layers46.5 × 40 mm
- 6 layers17 × 15.7 mm
OpenRX Gemini
OpenDrone-hw/OpenRX-Gemini
Open-source dual-radio, dual-band ExpressLRS receiver for Gemini and Xrossband.
86 parts11CERN-OHL-S-2.0 - 4 layers95.9 × 46 mm
Dragon 4L R02
CyberSaiyanIT/why2025-badge
Cyber Saiyan community has designed and developed a special gadget for WHY2025. The badge was designed to recall the dragon spheres, and is an updated version of RomHack Camp 2022 badge, both in term of design and…
127 parts10MIT - 2 layers93 × 173 mm
Batch 1
CDFER/Business-Cards
Showcasing a collection of functional PCB business cards, each demonstrating a unique embedded electronics project.
479 parts9 - 2 layers110 × 220 mm
Fin ltm
HekiNav/finland-live-train-map
Some of the LEDs are missing because they were removed after making the initial layout
423 parts7MIT - 6 layers10 × 11.5 mm
OpenRX Lite
OpenDrone-hw/OpenRX-Lite
Open-source 2.4 GHz ExpressLRS receiver with an on-board ceramic antenna.
47 parts6CERN-OHL-S-2.0 - 6 layers10 × 17.3 mm
OpenRX Mono
OpenDrone-hw/OpenRX-Mono
Open-source dual-band ExpressLRS receiver with one LR1121 radio and one U.FL antenna.
62 parts6CERN-OHL-S-2.0