2 layers95 × 85 mm
Fiberboard logic min
nguyenduchan/fiberboard
Fiberboard là bo mạch điều khiển logic tích hợp (AIO), không có driver stepper Nema. Cùng chức năng module ESP32 công nghiệp thông dụng: 4 ngõ vào cách ly + 4 relay + RS485.
108 parts
2 layers84 × 66 mm
Pomodoro timer v5 routed
hinewboy/pomodoro-timer番茄钟 PCB 项目（KiCad）：原理图、布局布线自动化脚本、JLCPCB 打样生产文件
- Size
- 84 × 66 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 46
- Nets
- 30
- Pads
- 204
- Tracks, vias
- 418, 33
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 4 Sep 2026
- Updated
- 4 Sep 2026
Overview
Pomodoro timer v5 routed is an open-source printed circuit board by hinewboy, from the hinewboy/pomodoro-timer repository on GitHub, published under the MIT licence. It is a 2-layer board of 84 × 66 mm with 46 parts on 30 nets, routed with 418 tracks and 33 vias.
It is built around the CH340C, ESP32-WROOM-32E and AMS1117-3.3, with the MMBT3904 and 1N4148W among its other parts. Its parts include 14 resistors, 13 capacitors, 5 switches, 4 diodes and 3 ICs. It belongs with the ESP32 boards of this library.
Main components
5
CH340C
SOP-16-20℃~+70℃ 2Mbps 3.3V、5V 50uA 7mA Transceiver USB 2.0 SOP-16 USB Converters ROHSWCH (Nanjing Qinheng Microelectronics)USB Converters
ESP32-WROOM-32E
SMD,18x25.5mmSMD,18x25.5mm WiFi Modules ROHSEspressif SystemsWiFi Modules
AMS1117-3.3
SOT-223-40℃~+125℃ 0.003%Vout 1 1.1V@(800mA) 15V 1A 3.3V 5mA 72dB@(120Hz) Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSAdvanced Monolithic SystemsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
MMBT3904
SOT-23-55℃~+150℃ 1 NPN 100 100nA 200mA 200mW 300MHz 300mV 40V 6V NPN SOT-23 Bipolar (BJT) ROHSJiangsu Changjing Electronics Technology (CJ)Bipolar (BJT)
1N4148W
SOD-123150mA 1A 1V@50mA 1uA@75V 400mW 4ns 75V Independent SOD-123 Switching Diodes ROHSSTMicroelectronicsSwitching Diodes
README
README.md番茄钟 Pomodoro Timer — PCB
KiCad 番茄钟定时器 PCB 项目：原理图 + 程序化布局/布线 + JLCPCB 打样文件。
状态
- v5 布线完成（
pomodoro_timer_v5_routed），DRC 已过 - JLCPCB 生产文件已导出（Gerber / BOM / POS / 钻孔）
目录结构
├── 项目日志.md # 开发过程日志
├── src/ # 布局/布线/导出自动化脚本（KiCad Python API + Freerouting）
├── build/ # 工程文件：.kicad_pcb / .kicad_sch / DRC 报告 / 3D 渲染
└── gerber/ # JLCPCB 打样文件（zip + BOM + POS + 打样说明）打样
生产文件见 gerber/jlc/，一键打包 gerber/pomodoro_timer_jlc.zip，说明见 gerber/打样说明.md。
Parts
46| Qty | Value | Footprint | References |
|---|---|---|---|
| 9 | 100nF | C_0603_1608Metric | C2, C4, C6, C7, C8, C9, C10, C11, C13 |
| 6 | 10k | R_0603_1608Metric | R4, R5, R8, R9, R10, R12 |
| 3 | MMBT3904 | SOT-23 | Q1, Q2, Q3 |
| 2 | 1k | R_0603_1608Metric | R3, R11 |
| 2 | 22uF | C_0603_1608Metric | C3, C12 |
| 2 | 4.7k | R_0603_1608Metric | R6, R7 |
| 2 | 470R | R_0603_1608Metric | R13, R14 |
| 2 | 5.1k | R_0603_1608Metric | R1, R2 |
| 1 | 10uF | C_0603_1608Metric | C1 |
| 1 | 1N4148W | D_SOD-123 | D3 |
| 1 | 1uF | C_0603_1608Metric | C5 |
| 1 | AMS1117-3.3 | SOT-223-3_TabPin2 | U2 |
| 1 | BEEP | Buzzer_12x9.5RM7.6 | LS1 |
| 1 | BOOT | SW_PUSH_6mm | SW2 |
| 1 | BREAK | LED_0603_1608Metric | D5 |
| 1 | CH340C | SOIC-16_3.9x9.9mm_P1.27mm | U3 |
| 1 | EN | SW_PUSH_6mm | SW1 |
| 1 | ESP32-WROOM-32E | ESP32-WROOM-32E | U1 |
| 1 | EXP | PinHeader_1x06_P2.54mm_Vertical | J3 |
| 1 | MODE | SW_PUSH_6mm | SW4 |
| 1 | OLED | PinHeader_1x04_P2.54mm_Vertical | J2 |
| 1 | PWR | LED_0603_1608Metric | D2 |
| 1 | RESET | SW_PUSH_6mm | SW5 |
| 1 | START | SW_PUSH_6mm | SW3 |
| 1 | USB-C | USB_C_Receptacle_HRO_TYPE-C-31-M-12 | J1 |
| 1 | WORK | LED_0603_1608Metric | D4 |
Questions
How big is the Pomodoro timer v5 routed PCB?
It measures 84 × 66 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Pomodoro timer v5 routed use?
46 parts, built around the CH340C, ESP32-WROOM-32E, AMS1117-3.3 and MMBT3904. 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 Pomodoro timer v5 routed KiCad files?
From the hinewboy/pomodoro-timer repository on GitHub, at the commit this page was made from: the board is build/pomodoro_timer_v5_routed.kicad_pcb and its schematic build/pomodoro_timer.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Pomodoro timer v5 routed design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
Similar boards
- 2 layers81.3 × 72.9 mm
- 2 layers90 × 60 mm
- 2 layers114 × 105 mm
Smell monitor v1 1
OpenSmell/smell-monitor
The enclosure is the simple one a builder can hold in their head: an open tray, a board on four standoffs, modules plugged into eight headers, a flat lid with four M3 screws, a filter pad that drops into the front, and…
64 parts - 2 layers30 × 60 mm
Test routed
Shmcandi/esp32-devkit-hardware
Production-grade ESP32-WROOM-32E and ESP32-S3 (N16R8) Dual USB-C development board PCB designs created with Atopile & KiCad 10
26 parts - 2 layers100 × 100 mm
Hour meter board microfit can handroute
ilomon10/embedded-totalizer-hour-meter
ESP32 engine hour meter & totalizer: firmware, SensorFrame protocol, Node host tools, KiCad PCB and a Deno device simulator
152 parts - 2 layers57.5 × 72 mm
ESP32-Based Sensor PCB
blazjerman/ESP32-Based-Sensor-PCB
For updates or additional library formats, visit SnapEDA.
77 parts4MIT - 2 layers210 × 297 mm
Fra clock
albertoboffi-PERSONAL/fra-clock
A one-off gift PCB designed in KiCad 10: an ESP32 clock with a ring of 180 WS2812B‑2020 LEDs, a photo printed in exposed copper on the front, two Makerverse 8 Ω / 5 W speakers driven by two MAX98357A I²S amplifiers…
428 parts