

Main v02
open source files of the teams www.bohlebots.de
- Size
- 80 × 100 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 79
- Nets
- 95
- Pads
- 340
- Tracks, vias
- 844, 99
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 24 Sep 2022
- Updated
- 28 Jun 2026
Overview
Main v02 is an open-source printed circuit board by bohlebots, from the bohlebots/soccer repository on GitHub. It is a 2-layer board of 80 × 100 mm with 79 parts on 95 nets, routed with 844 tracks and 99 vias.
It is built around the ESP32-WROOM-32, CP2102N-A02-GQFN24R and LM1117IMPX-3.3/NOPB-HXY, with the GT-USB-7043, LMBT3904DW1T1G and IFX9201SGAUMA1 among its other parts. Its parts include 26 resistors, 14 ICs, 12 connectors, 5 capacitors and 4 diodes. It belongs with the ESP32 boards of this library.
Main components
7ESP32-WROOM-32
SMD,18x25.5mm-40℃~+85℃ -98dBm 2.4GHz 2.7V~3.6V 20dBm Bluetooth4.2 ESP32-DOWDQ6 UART、SDIO、SPI、I2C、GPIO、PWM、ADC、DAC SMD,25.5x18mm WiFi Modules ROHSEspressif SystemsWiFi ModulesCP2102N-A02-GQFN24R
QFN-24-EP(4x4)-40℃~+85℃@(Ta) 1.3uA 3V~3.6V 9.5mA USB 2.0 USB to UART QFN-24-EP(4x4) USB Converters ROHSSilicon LabsUSB ConvertersLM1117IMPX-3.3/NOPB-HXY
SOT-223-20℃~+85℃ 1.3V@(800mA) 15V 2mA 3.3V 800mA Fixed Thermal Shutdown SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSHXY MOSFETVoltage Regulators - Linear, Low Drop Out (LDO) RegulatorsGT-USB-7043
SMD-40℃~+85℃ 1 10,000 cycles 16P 24V 3.18mm 5A 7.9mm Black Female Surface Mount, Right Angle Type-C USB 2.0 SMD USB Connectors ROHSG-SwitchUSB ConnectorsLMBT3904DW1T1G
SC-88-55℃~+150℃ 100 150mW 2 NPN 200mA 200mV 300MHz 40V 50nA 6V NPN SC-88 Bipolar (BJT) ROHSLeshan Radio (LRC)Bipolar (BJT)IFX9201SGAUMA1
SO-12-EP-300milSO-12-EP-300mil SMT ROHSInfineon TechnologiesUncategorisedXT30UPB-F
--、Aviation model plug 0.65mΩ 15A DC 500V Female Gold Plated PA Yellow - Power connector / plug connector ROHSAMASSPlug
README
README.mdBohlebots
collection of all published and open source software and hardware from the Bohlebots.
We are a team of students at the Gymnasium Haan in Germany. We call ourselves Bohlebots due to the support of the Bohle company at our home town Haan.We decided to put all our robotic stuff opensource. This includes arduino files and libraries, eagle pcb files () and eagle libraries (lbr) for all our baords. This page is under construction and it suffers from the inactivity of the author. BUT:
We have a teams-account for all the informarmation of the international bohlebots teams: https://github.com/rstiebel
We are also taking part at the development of the https://github.com/CoRoSoN-Kit/CoRoSoN-Kit. The aktual bohlbots CoRoSoN Kit is lokated under https://github.com/ItzJannis/CoRoSoN-Package_Draft
Here is a photo of the prototypes of a mainboard and an IR-seeker-ring:

Parts
79| Qty | Value | Footprint | References |
|---|---|---|---|
| 12 | SMD-10K | footprint:R0603 | R1, R2, R3, R4, R5, R6, R7, R9, R10, R11, R14, R15 |
| 9 | SMD-470R | footprint:R0603 | R16, R17, R20, R21, R22, R23, R24, R25, R26 |
| 8 | MountingHole | MountingHole:MountingHole_4.3mm_M4 | H1, H2, H3, H4, H5, H6, H7, H8 |
| 6 | SMD-PUSH-BTN | footprint:SW-TH_5P-L6.0-W6.0-P4.50-LS6.5 | U5, U6, U7, U9, U14, U15 |
| 4 | IFX9201SGAUMA1 | footprint:SO-12_L6.4-W7.5-P1.00-LS10.3-BL-EP | IFX1, IFX2, IFX3, IFX4 |
| 4 | Pinhead_01x02_horizontal | footprint:HDR-TH_2P-P2.54-H-M-W10.4 | J1, J2, J3, J4 |
| 3 | SMD-100nF | footprint:C0603 | C4, C6, C7 |
| 3 | SMD-RGB-LED | footprint:LED-SMD_6P-L5.0-W5.0-TL_TC5050RGBF08 | LED1, LED2, LED3 |
| 3 | XT30UPB-F | footprint:CONN-TH_XT30UPB-F | CN1, CN2, CN3 |
| 2 | Conn_01x02_Pin | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J8, J9 |
| 2 | Conn_02x02_Row_Letter_First | footprint:HDR-TH_4P-P2.54-H-M-R2-C2-S2.54-W12.3-N | J6, J7 |
| 2 | LM1117IMPX-3_3_NOPB | footprint:SOT-223_L6.5-W3.5-P2.30-LS7.0-BR | U3, U11 |
| 2 | SMD-100R | footprint:R0603 | R18, R19 |
| 2 | SMD-1uF | footprint:C0603 | C3, C5 |
| 2 | SMD-5K1 | footprint:R0603 | R12, R13 |
| 1 | 5V | BohleBots:D36V28FX | D36V28FX1 |
| 1 | CP2102N-A02-GQFN24R | footprint:QFN-24_L4.0-W4.0-P0.50-TL-EP2.6 | U10 |
| 1 | Conn_02x04_Row_Letter_First | footprint:HDR-TH_8P-P2.54-H-M-R2-C4-S2.54 | J5 |
| 1 | ESP32-WROOM-32 | footprint:WIFIM-SMD_ESP32-WROOM-32-N4 | U1 |
| 1 | GT-USB-7043 | footprint:USB-C-SMD_GT-USB-7043 | U8 |
| 1 | LMBT3904DW1T1G | footprint:SOT-363_L2.0-W1.3-P0.65-LS2.1-BR | U12 |
| 1 | LOGO | footprint:github | G*** |
| 1 | LOGO | footprint:logo | G*** |
| 1 | LOGO | footprint:logo_klein | G*** |
| 1 | MICROMATCH-4 | BohleBots:MICROMATCH-4 | X3 |
| 1 | SMD-1K | footprint:R0603 | R8 |
| 1 | Switch | footprint:SW-TH_MT-0-103-A101-M200-RS | U2 |
| 1 | XT30_horizontal | footprint:CONN-TH_XT30PW-M | U4 |
| 1 | ~ | BohleBots:MICROMATCH-4 | X1 |
| 1 | ~ | BohleBots:MICROMATCH-10 | X2 |
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Questions
How big is the Main v02 PCB?
It measures 80 × 100 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Main v02 use?
79 parts, built around the ESP32-WROOM-32, CP2102N-A02-GQFN24R, LM1117IMPX-3.3/NOPB-HXY and GT-USB-7043. 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 Main v02 KiCad files?
From the bohlebots/soccer repository on GitHub, at the commit this page was made from: the board is KiCad/Main_v02.kicad_pcb and its schematic KiCad/IR_ring_v05.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Main v02 design in my own project?
Its repository states no licence, so its author keeps all rights: ask bohlebots before reusing the design.