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UI V1 WROOM

Gamu2124·RoboCupJunior2026-RobotDatas·Circuit/JapanOpen/UI_WROOM/UI_V1_WROOM.kicad_pcb

UI V1 WROOM PCB layout, top view — open source ESP32 board by Gamu2124
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About the UI V1 WROOM PCB

UI V1 WROOM is an open source ESP32 PCB design by Gamu2124, published on GitHub. It is a 2-layer board measuring 80 × 49 mm, with 51 components from 28 distinct parts.

Its main chip is the ESP32-WROOM-32, from the ESP32 family. Other key parts include the CH340K, UMH3N, BD50FC0FP and CH340E. By type, the board carries 12 capacitors, 11 resistors, 8 diodes, 5 ICs, 5 connectors and 3 switches.

It belongs with the robotics & motion, displays & leds and sensors designs in this gallery.

From the project

Complete data for the robot that won the Japan and World championships / 日本大会優勝 & 世界大会優勝したロボットの全データ

RoboCupJunior Soccer Lightweight 2026 シーズンにおいて、ジャパンオープン優勝、そして世界大会（韓国・仁川）で競技優勝・総合優勝・コミュニティ賞を達成したロボット「AIR」の設計・開発データを公開するリポジトリです。

This repository contains the design, hardware, and software data of AIR, the RoboCupJunior Soccer Lightweight 2026 Japan Open Champion and World Championship Champion.

本リポジトリは、次世代のRCJコミュニティおよび学生ロボティクスエンジニアへの情報共有を目的として公開されています。

2026シーズンの開発で使用した回路設計、組み込みソフトウェア、マルチマイコンによる分散処理システム、3D CADデータなど、AIRのロボット開発に関する設計データを公開しています。

UI V1 WROOM, from the project README
From the project README

Main components on the UI V1 WROOM

ESP32-WROOM-32CH340KUMH3NBD50FC0FPCH340E

UI V1 WROOM bill of materials (BOM)

51 components, 28 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ESP32-WROOM-32
U1
1
CH340K
U2
1
UMH3N
U3
1
BD50FC0FP
U4
1
CH340E
U5
1
TYPE-C_Line
J1
1
TYPE-C_ESP32
J2
1
CONN_01X02_SOCKET
Conn_01x02_Socket
J3
1
CONN_01X04_SOCKET
Conn_01x04_Socket
J4
1
CONN_01X04_SOCKET
Conn_01x04_Socket
J5
1
Buzzer
BZ1
3
SW_Push
SW1, SW2, SW3
1
Conn_01x06_Socket
ffc1
1
BSS138
neopix1
3
SW_Push
tact_1, tact_2, tact_3
1
SW_SPDT
toggle_1
1
GREEN
D1
6
RED
D2, D4, D5, D6, D7, D8
1
D
D3
9
0.1U
0.1u
C1, C3, C4, C5, C6, C8, C9, C11 +1
Show 8 more
QtyPartRefs
1
0.1
C2
1
10U
10u
C7
1
47U
47u
C10
3
10K
10k
R1, R7, R8
1
1k
R2
1
56
R3
4
5.1K
5.1k
R4, R6, R9, R11
2
110
R5, R10

UI V1 WROOM design files

The KiCad project lives in the Gamu2124/RoboCupJunior2026-RobotDatas repository on GitHub; these links point at the commit this page was built from.

UI V1 WROOM: common questions

What microcontroller does the UI V1 WROOM use?

The UI V1 WROOM is built around the ESP32-WROOM-32, from the ESP32 family.

How big is the UI V1 WROOM PCB?

The UI V1 WROOM measures 80 × 49 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the UI V1 WROOM?

51 components, from 28 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 UI V1 WROOM design files?

From the Gamu2124/RoboCupJunior2026-RobotDatas repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the UI V1 WROOM design in my own project?

The repository has no license, so all rights stay with Gamu2124. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the UI V1 WROOM 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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