Main 2026 V1
About the Main 2026 V1 PCB
Main 2026 V1 is an open source ESP32 PCB design by Gamu2124, published on GitHub. It is a 2-layer board measuring 156.7 × 149.9 mm, with 127 components from 45 distinct parts.
Its main chip is the XIAO-ESP32-S3-DIP_USS, from the ESP32 family. Other key parts include the LM1117MP-3.3_MODULE, BD50FD0W_CPU, BD50FD0W_CAM, LM1117MP-3.3 and XIAO-ESP32-S3-DIP_UI. By type, the board carries 42 capacitors, 26 diodes, 17 resistors, 16 connectors, 6 ICs and 4 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。
Main components on the Main 2026 V1
Main 2026 V1 bill of materials (BOM)
127 components, 45 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | LM1117MP-3.3_MODULE LM1117MP-3.3_module | SOT-223 | U1 |
| 1 | BD50FD0W_CPU BD50FD0W_cpu | DPAK172P1054X200-6N | U2 |
| 1 | BD50FD0W_CAM BD50FD0W_cam | DPAK172P1054X200-6N | U3 |
| 1 | LM1117MP-3.3 | SOT-223 | U4 |
| 1 | XIAO-ESP32-S3-DIP_USS XIAO-ESP32-S3-DIP_uss | XIAO-ESP32-S3-DIP | U6 |
| 1 | XIAO-ESP32-S3-DIP_UI XIAO-ESP32-S3-DIP_ui | XIAO-ESP32-S3-DIP | U7 |
| 1 | CONN_01X03_SOCKET Conn_01x03_Socket | JST_XH_B3B-XH-A_1x03_P2.50mm_Vertical | J1 |
| 2 | CONN_01X04_SOCKET Conn_01x04_Socket | PinSocket_1x04_P2.54mm_Vertical | J2, J17 |
| 1 | CONN_01X06_SOCKET Conn_01x06_Socket | PinSocket_1x06_P2.54mm_Vertical | J3 |
| 2 | CONN_01X24_SOCKET Conn_01x24_Socket | PinSocket_1x24_P2.54mm_Vertical | J4, J5 |
| 1 | TYPE-C_LINE | USB_C_Receptacle_XKB_U262-16XN-4BVC11 | J6 |
| 1 | TYPE-C_BALL | USB_C_Receptacle_XKB_U262-16XN-4BVC11 | J8 |
| 1 | TYPE-C_main | USB_C_Receptacle_XKB_U262-16XN-4BVC11 | J9 |
| 3 | CONN_02X02_COUNTER_CLOCKWISE Conn_02x02_Counter_Clockwise | PinHeader_2x02_P2.54mm_Vertical | J10, J13, J16 |
| 1 | USS_1 | JST_XH_B4B-XH-A_1x04_P2.50mm_Vertical | J11 |
| 1 | USS_2 | JST_XH_B4B-XH-A_1x04_P2.50mm_Vertical | J12 |
| 1 | USS_3 | JST_XH_B4B-XH-A_1x04_P2.50mm_Vertical | J14 |
| 1 | USS_4 | JST_XH_B4B-XH-A_1x04_P2.50mm_Vertical | J15 |
| 2 | Conn_01x06_Socket | TE_84952-6_1x06-1MP_P1.0mm_Horizontal | Motor_1, line_1 |
| 4 | SW_Push | Switch_SKRPABE010 | SW1, SW2, SW3, SW4 |
Show 25 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | Conn_01x04_Socket | PinSocket_1x04_P2.54mm_Vertical | bno_1, none_1 |
| 3 | Conn_01x04_Socket | SEEED_110990030 | cam_1, cam_2, cam_3 |
| 1 | Conn_01x02_Socket | PinSocket_1x02_P2.54mm_Vertical | dpdm_1 |
| 1 | Conn_01x03_Socket | JST_XH_B3B-XH-A_1x03_P2.50mm_Vertical | kick_1 |
| 2 | Conn_01x02_Socket | JST_XH_B2B-XH-AM_1x02_P2.50mm_Vertical | led_1, photo_1 |
| 1 | BSS138 | SOT-23 | neopix1 |
| 3 | SW_Push | SW_PUSH-12mm | tact_1, tact_2, tact_3 |
| 1 | SW_SPDT | PinSocket_1x03_P2.54mm_Vertical | toggle_1 |
| 2 | D_Schottky | D_A-405_P10.16mm_Horizontal | D1, D2 |
| 24 | WS2812B | LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mm | D3, D4, D5, D6, D7, D8, D9, D10 +16 |
| 5 | 10 | C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C1, C2, C8, C9, C14 |
| 1 | 1000 | CP_Radial_D10.0mm_P5.00mm | C3 |
| 2 | 10UF 10uf | C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C4, C6 |
| 2 | 100UF 100uf | CP_Elec_6.3x5.4 | C5, C7 |
| 27 | 0.1 | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C12, C16, C18, C21, C22, C23, C24, C25 +19 |
| 4 | 100 | CP_Elec_6.3x5.4 | C13, C17, C19, C20 |
| 1 | 0.1 | C_Disc_D5.0mm_W2.5mm_P2.50mm | C15 |
| 2 | 10K 10k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1, R2 |
| 1 | 1k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R3 |
| 6 | 5.1K 5.1k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R4, R5, R8, R9, R10, R11 |
| 2 | 3.3K 3.3k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R12, R13 |
| 2 | 1k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R14, R17 |
| 1 | 50 | R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal | R15 |
| 1 | 100K 100k | R_0603_1608Metric | R16 |
| 2 | 10K 10k | R_1206_3216Metric | R18, R19 |
Main 2026 V1 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.
Main 2026 V1: common questions
What microcontroller does the Main 2026 V1 use?
The Main 2026 V1 is built around the XIAO-ESP32-S3-DIP_USS, from the ESP32 family.
How big is the Main 2026 V1 PCB?
The Main 2026 V1 measures 156.7 × 149.9 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Main 2026 V1?
127 components, from 45 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 Main 2026 V1 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 Main 2026 V1 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 Main 2026 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.
More boards in RoboCupJunior2026-RobotDatas
RP2040/RP2350Line 2026 v1
196 × 158 mm272 parts2LNo license1
AVR/ArduinoLine V7 ATmega2560
120.9 × 152.5 mm188 parts4LNo license1
ESP32Ball V4 32u4
100.2 × 102.7 mm97 parts2LNo license1
SideLine V3
37.5 × 84.2 mm66 parts4LNo license1
RP2040/RP2350Ball 2026 v1
150 × 150 mm56 parts2LNo license1
ESP32UI V1 WROOM
80 × 49 mm51 parts2LNo license1
ESP32Dcdc V8
80 × 42 mm42 parts2LNo license1
Dcdc 2026 v1
76.1 × 45.4 mm40 parts2LNo license1
Teensy V4
101.4 × 99.9 mm36 parts2LNo license1
Kicker V1
73.1 × 30.3 mm20 parts4LNo license1
MD Boost V1
80 × 57 mm16 parts2LNo license1
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