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Focus bar panel v1

StuckAtPrototype·FocusBar·hardware/panel/focus_bar_panel_v1.kicad_pcb

Focus bar panel v1 PCB layout, top view — open source ESP32 board by StuckAtPrototype
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About the Focus bar panel v1 PCB

Focus bar panel v1 is an open source ESP32 PCB design by StuckAtPrototype, published on GitHub under the Apache-2.0 license. It is a 2-layer board measuring 120 × 95 mm, with 66 components from 20 distinct parts.

Its main chip is the ESP32-H2-MINI-1, from the ESP32 family. Other key parts include the AP2205. By type, the board carries 22 capacitors, 22 resistors, 10 LEDs, 6 switches, 2 ICs and 1 transistor.

It belongs with the iot & wireless designs in this gallery.

From the project

A compact Pomodoro timer device with visual LED progress bar, tactile button controls, and audio feedback. Designed to help you stay focused and productive.

A compact Pomodoro timer device with visual LED progress bar, tactile button controls, and audio feedback. Designed to help you stay focused and productive.

- Visual Progress Bar: 10 WS2812 addressable RGB LEDs show timer progress - 5 Preset Durations: Quick-select buttons for 5, 15, 30, 45, and 60 minute focus sessions - Audio Feedback: Piezo buzzer for startup jingle, completion notification, and alert sounds - Intuitive States: Color-coded LED feedback for different timer states - USB-C Powered: Modern, reversible connector for easy power - Compact Design: Custom PCB with 3D-printable…

Main components on the Focus bar panel v1

AP2205ESP32-H2-MINI-1

Focus bar panel v1 bill of materials (BOM)

66 components, 20 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
AP2205
U6
1
ESP32-H2-MINI-1
U7
1
BSS138
Q1
1
USB_C_Plug_USB2.0
P1
1
SMT1240SHT
LS1
1
SWITCH_0SMTRLFS
S2
5
TL1016AAF220QG
S3, S4, S5, S6, S7
10
IN-PI15TAT5R5G5B
LED1, LED2, LED3, LED4, LED5, LED6, LED7, LED8 +2
1
TPD1E10B06
D5
1
47uF
C9
1
1uF
C10
18
0.1uF
C11, C12, C13, C16, C17, C18, C19, C20 +10
2
10uF
C21, C22
9
10k
R1, R4, R11, R12, R20, R24, R26, R28 +1
1
470
R5
2
1M
R16, R31
2
5K1
R17, R18
5
100k
R19, R23, R25, R27, R29
2
22
R21, R22
1
100
R32

Focus bar panel v1 design files

The KiCad project lives in the StuckAtPrototype/FocusBar repository on GitHub; these links point at the commit this page was built from.

Focus bar panel v1: common questions

What microcontroller does the Focus bar panel v1 use?

The Focus bar panel v1 is built around the ESP32-H2-MINI-1, from the ESP32 family.

How big is the Focus bar panel v1 PCB?

The Focus bar panel v1 measures 120 × 95 mm, has 2 copper layers and is 1.66 mm thick.

How many components are on the Focus bar panel v1?

66 components, from 20 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Focus bar panel v1 design files?

From the StuckAtPrototype/FocusBar repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the Focus bar panel v1 design in my own project?

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

Can I test firmware for the Focus bar panel v1 without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.

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