4 layers65 × 56 mm
Copilot Lite
BayLibre/Copilot
Manage a DUT power and serial through a single USB port, no additional software required.
80 parts22MIT
4 layers87.5 × 129.5 mm
Shell bms
anshinx/shell-bmsshell-eco-marathon pehlivan team bms
- Size
- 87.5 × 129.5 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 196
- Nets
- 186
- Pads
- 777
- Tracks, vias
- 954, 370
- Pours
- 18
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 1 Jan 2026
- Updated
- 24 Apr 2026
Overview
Shell bms is an open-source printed circuit board by anshinx, from the anshinx/shell-bms repository on GitHub. It is a 4-layer board of 87.5 × 129.5 mm with 196 parts on 186 nets, routed with 954 tracks and 370 vias.
It is built around the ESP-WROOM-02, CH340K and LM5017MR, with the BQ76952PFBR, BUK7M27-80EX and BC817 among its other parts. Its parts include 71 resistors, 63 capacitors, 11 transistors, 11 connectors and 8 diodes. It belongs with the power boards and the STM32 boards of this library.
Main components
6
ESP-WROOM-02
SMD-18P-40℃~+85℃ -98dBm 170mA 2.4GHz 2.7V~3.6V 20dBm 50mA、56mA ESP8266EX On-board PCB Antenna UART、SPI、I2C、GPIO、PWM、I2S SMD-18P WiFi Modules ROHSEspressif SystemsWiFi Modules
CH340K
ESSOP-10-150mil-1mm-20℃~+70℃ 2Mbps 3.3V、5V USB 2.0 USB to serial ESSOP-10-150mil-1mm USB Converters ROHSWCH (Nanjing Qinheng Microelectronics)USB Converters
LM5017MR
SO-8-40℃~+125℃@(TJ) 1 1.75uA 225kHz~1MHz 600mA 7.5V~100V Adjustable Buck Buck Built-in Yes SO-8 DC-DC Converters ROHSTexas InstrumentsDC-DC Converters
BQ76952PFBR
TQFP-48(7x7)-40℃~+85℃ 100mA 1uA 3~16 4.7V~80V I2C、SPI、HDQ Lithium Battery、LiFePO4 Battery Protection IC、Monitoring IC Support TQFP-48(7x7) Battery Management ROHSTexas InstrumentsBattery Management
BUK7M27-80EX
LFPAK33-8-55℃~+175℃ 1 N-channel 1.306nF 19.5nC@10V 27mΩ@10V 30A 3V 62W 80V 89pF LFPAK33-8 MOSFETs ROHSNexperiaMOSFETs
BC817
SOT-231 NPN 100nA 150MHz 300mW 40 45V 500mA 5V 700mV NPN SOT-23 Bipolar (BJT) ROHSShikuesBipolar (BJT)
Parts
196| Qty | Value | Footprint | References |
|---|---|---|---|
| 17 | 22 | Resistor_SMD:R_1210_3225Metric_Pad1.30x2.65mm_HandSolder | R1, R2, R3, R4, R5, R6, R7, R8, R10, R11, R12, R13, R14, R15, R16, R17 +1 |
| 17 | 220nF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C2, C3, C4, C5, C6, C7, C8, C10, C11, C12, C13, C14, C15, C16, C17 +1 |
| 13 | 100nF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C32, C42, C43, C44, C47, C48, C50, C52, C54, C60, C61, C62, C63 |
| 6 | 0R | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R18, R19, R20, R21, R47, R48 |
| 6 | 10K | Resistor_SMD:R_0612_1632Metric_Pad1.18x3.40mm_HandSolder | R62, R63, R64, R65, R66, R67 |
| 6 | 47 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R25, R31, R37, R39, R60, R73 |
| 6 | BUK7M27-80EX | Package_TO_SOT_SMD:LFPAK33 | Q2, Q3, Q8, Q9, Q10, Q11 |
| 6 | MountingHole | Mounting_Wuerth:Mounting_Wuerth_WA-SMST-2.25mm_H2.5mm_9774025943 | H1, H2, H3, H4, H5, H6 |
| 5 | 10uF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C45, C46, C53, C59, C64 |
| 4 | 5.1K | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R42, R49, R70, R71 |
| 4 | 5.1k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R33, R34, R35, R36 |
| 4 | BC817 | Package_TO_SOT_SMD:SOT-23 | Q4, Q5, Q6, Q7 |
| 3 | 0.1uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C24, C29, C30 |
| 3 | 10nf | Capacitor_SMD:C_1210_3225Metric_Pad1.33x2.70mm_HandSolder | C18, C19, C20 |
| 3 | 1K | Resistor_SMD:R_1210_3225Metric_Pad1.30x2.65mm_HandSolder | R51, R56, R58 |
| 3 | 1N4148 | Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal | D5, D7, D8 |
| 3 | 1uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C22, C26, C27 |
| 3 | 1uF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C38, C39, C49 |
| 3 | 260 | Resistor_SMD:R_1210_3225Metric_Pad1.30x2.65mm_HandSolder | R53, R54, R72 |
| 3 | 4.7K | Resistor_SMD:R_1210_3225Metric_Pad1.30x2.65mm_HandSolder | R52, R57, R59 |
| 3 | NetTie_2 | NetTie:NetTie-2_THT_Pad0.3mm | NT1, NT2, NT3 |
| 2 | 100R | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R26, R27 |
| 2 | 10k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R28, R29 |
| 2 | 16V Zener | Diode_SMD:D_SMF | D3, D4 |
| 2 | 1K | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R23, R24 |
| 2 | 1M | Resistor_SMD:R_2512_6332Metric_Pad1.40x3.35mm_HandSolder | R32, R38 |
| 2 | 2.2uF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C40, C41 |
| 2 | 22R | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R68, R69 |
| 2 | 22pF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C56, C57 |
| 2 | Conn_01x02 | Connector_PinSocket_2.00mm:PinSocket_1x02_P2.00mm_Vertical | J7, J8 |
| 2 | Conn_01x04 | Connector_PinSocket_2.00mm:PinSocket_1x04_P2.00mm_Vertical | J4, J9 |
| 2 | Jumper_3_Bridged12 | Jumper:SolderJumper-3_P1.3mm_Bridged2Bar12_Pad1.0x1.5mm | JP2, JP3 |
| 2 | USB_C_Receptacle_USB2.0_16P | Connector_USB:USB_C_Receptacle_HCTL_HC-TYPE-C-16P-01A | J5, J11 |
| 1 | .1uF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C34 |
| 1 | 0.470uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C23 |
| 1 | 100K | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R43 |
| 1 | 100R | Resistor_THT:R_Axial_DIN0309_L9.0mm_D3.2mm_P15.24mm_Horizontal | R22 |
| 1 | 100nF | Capacitor_THT:C_Disc_D10.5mm_W5.0mm_P5.00mm | C58 |
| 1 | 100nF | Capacitor_SMD:C_1210_3225Metric_Pad1.33x2.70mm_HandSolder | C55 |
| 1 | 100nf | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C65 |
| 1 | 100pF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C25 |
| 1 | 100pf | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C21 |
| 1 | 10K | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R45 |
| 1 | 10K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R55 |
| 1 | 10uf | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C51 |
| 1 | 120R | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R50 |
| 1 | 12R | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | FB1 |
| 1 | 15nF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C35 |
| 1 | 1N914 | Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal | D2 |
| 1 | 1m | Resistor_SMD:R_1210_3225Metric_Pad1.30x2.65mm_HandSolder | R61 |
| 1 | 1uF | Capacitor_SMD:C_1210_3225Metric_Pad1.33x2.70mm_HandSolder | C33 |
| 1 | 220uH 2A | Inductor_SMD:L_1210_3225Metric_Pad1.42x2.65mm_HandSolder | L1 |
| 1 | 22nF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C28 |
| 1 | 3.3nF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C36 |
| 1 | 300 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R30 |
| 1 | 46k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R46 |
| 1 | 86.6K | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R44 |
| 1 | 8MHz | Crystal:Crystal_HC18-U_Vertical | Y1 |
| 1 | AP2204K-5.0 | Package_TO_SOT_SMD:SOT-23-5 | U4 |
| 1 | BAT+ | WP-BUTR_7460307:WP-BUTR_7460307 | MP1 |
| 1 | BAT- | WP-BUTR_7460307:WP-BUTR_7460307 | MP2 |
| 1 | BQ76952PFBR | BQ76952:QFP50P900X900X120-48N | U1 |
| 1 | Buzzer | Buzzer_Beeper:Buzzer_12x9.5RM7.6 | BZ1 |
| 1 | CH340K | Package_SO:SSOP-10-1EP_3.9x4.9mm_P1mm_EP2.1x3.3mm | U9 |
| 1 | Conn_01x02 | Connector_PinSocket_2.00mm:PinSocket_1x02_P2.00mm_Horizontal | J6 |
| 1 | Conn_01x04 | Connector_PinSocket_2.54mm:PinSocket_1x04_P2.54mm_Vertical | J3 |
| 1 | Conn_01x09 | Connector_PinSocket_2.54mm:PinSocket_1x09_P2.54mm_Vertical | J1 |
| 1 | Conn_01x20 | Connector_Wago:Wago_734-180_1x20_P3.50mm_Horizontal | J2 |
| 1 | D | Diode_THT:D_A-405_P7.62mm_Horizontal | D1 |
| 1 | ESP-WROOM-02 | RF_Module:ESP-WROOM-02 | U7 |
| 1 | Jumper_3_Open | Connector_PinHeader_1.27mm:PinHeader_1x03_P1.27mm_Vertical | JP1 |
| 1 | LED_R | LED_THT:LED_D1.8mm_W3.3mm_H2.4mm | D6 |
| 1 | LM5017MR | Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.95x4.9mm_Mask2.71x3.4mm_ThermalVias | U2 |
| 1 | LOGO | LOGO | G*** |
| 1 | NPN | Package_TO_SOT_THT:TO-92_HandSolder | Q1 |
| 1 | OUTSIDE LED | Connector_PinSocket_2.00mm:PinSocket_1x02_P2.00mm_Horizontal | J13 |
| 1 | PACK+ | WP-BUTR_7460307:WP-BUTR_7460307 | MP3 |
| 1 | PACK- | WP-BUTR_7460307:WP-BUTR_7460307 | MP4 |
| 1 | STM32G431C8Tx | Package_QFP:LQFP-48_7x7mm_P0.5mm | U3 |
| 1 | SW_Nidec_CAS-120A1 | Button_Switch_SMD:Nidec_Copal_CAS-120A | SW2 |
The 192 most common of 196 parts.
Questions
How big is the Shell bms PCB?
It measures 87.5 × 129.5 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Shell bms use?
196 parts, built around the ESP-WROOM-02, CH340K, LM5017MR and BQ76952PFBR. 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 Shell bms KiCad files?
From the anshinx/shell-bms repository on GitHub, at the commit this page was made from: the board is shell-bms.kicad_pcb and its schematic balancer.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Shell bms design in my own project?
Its repository states no licence, so its author keeps all rights: ask anshinx before reusing the design.
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