Big Daddy
About the Big Daddy PCB
Big Daddy is an open source ESP32 PCB design by uvmaero, published on GitHub. It is a 4-layer board measuring 245.5 × 127 mm, with 124 components from 72 distinct parts.
Its main chip is the ESP32-S3-DEVKITC-1U-N8R8, from the ESP32 family. Other key parts include the MAX33054EASA+T, LT1528CQ#PBF, LTV-817S, ICM7555CBAZ-T and IS31LT3360-SDLS4-TR. By type, the board carries 41 resistors, 20 capacitors, 14 connectors, 13 ICs, 11 fuses and 11 diodes.
From the project
PCBs for Clean Speed 6.0
Main components on the Big Daddy
Big Daddy bill of materials (BOM)
124 components, 72 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | MAX33054EASA+T | SOIC127P600X175-8N | U1 |
| 2 | ESP32-S3-DEVKITC-1U-N8R8 ESP32-S3-DevKitC | ESP32-S3-DevKitC | U2, U3 |
| 1 | LT1528CQ#PBF | LT1528CQPBF | U4 |
| 2 | LTV-817S | SMDIP-4_W9.53mm | U5, U9 |
| 1 | ICM7555CBAZ-T ICM7555xB | SOIC-8_3.9x4.9mm_P1.27mm | U6 |
| 1 | IS31LT3360-SDLS4-TR IS31LT3360 | SOT-89-5 | U7 |
| 1 | Vicor_AERO | vicor-socket-no-cutouts | U8 |
| 1 | TLP184(BL-TPL,SE TLP184 | MFSOP6-4_4.4x3.6mm_P1.27mm | U10 |
| 2 | LM5050-1 | TSOT-23-6 | U11, U12 |
| 1 | LM317_TO-263 | TO-263-2 | U14 |
| 1 | 2N7002 | SOT-23 | Q1 |
| 1 | BCP53 | SOT-223-3_TabPin2 | Q2 |
| 2 | IXFH34N65X2 | TO-247-3_Vertical_GDS | Q3, Q4 |
| 1 | MMBT2222 | SOT-23 | Q6 |
| 1 | JST-B2B-VERT-2PIN BMS Button | JST_XH_B2B-XH-AM_1x02_P2.50mm_Vertical | J1 |
| 1 | JST-B2B-VERT-2PIN IMD Button | JST_XH_B2B-XH-AM_1x02_P2.50mm_Vertical | J2 |
| 1 | HV+ | Hirose_DF63R-2P-3.96DSA_1x02_P3.96mm_Vertical | J3 |
| 1 | HV- | Hirose_DF63R-2P-3.96DSA_1x02_P3.96mm_Vertical | J4 |
| 1 | GND | Hirose_DF63M-1P-3.96DSA_1x01_P3.96mm_Vertical | J5 |
| 1 | HV+ | Hirose_DF63M-1P-3.96DSA_1x01_P3.96mm_Vertical | J6 |
Show 52 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | HV- | Hirose_DF63M-1P-3.96DSA_1x01_P3.96mm_Vertical | J7 |
| 3 | CONN_01X14 Conn_01x14 | TE_1-776266-1_14pin_Horizontal | J8, J12, J13 |
| 1 | CONN_01X08 Conn_01x08 | TE_1-776280-1_8pin_Horizontal | J9 |
| 2 | CONN_01X02 Conn_01x02 | TE_MATE-N-LOK_1-770866-x_1x02_P4.14mm_Vertical | J10, J15 |
| 1 | CONN_01X23 Conn_01x23 | TE_1-770669-1_23pin_Horizontal | J11 |
| 4 | 2A | Fuseholder_Blade_Mini_Keystone_3568 | F1, F4, F6, F7 |
| 1 | 10A | Fuseholder_Blade_Mini_Keystone_3568 | F2 |
| 2 | 5A | Fuseholder_Blade_Mini_Keystone_3568 | F3, F5 |
| 2 | 1A | Fuseholder_Blade_Mini_Keystone_3568 | F9, F10 |
| 1 | 5A | Fuseholder_Cylinder-5x20mm_Schurter_0031_8201_Horizontal_Open_3d | F11 |
| 1 | 1A | Fuseholder_Cylinder-5x20mm_Schurter_0031_8201_Horizontal_Open_3d | F12 |
| 1 | T9VV1K15-12S | RELAY_T9VV1K15-12S | K1 |
| 2 | G5V-2 | Relay_DPDT_Omron_G5V-2 | K2, K3 |
| 1 | J107 | J1071AS3VDC | K4 |
| 1 | G5V-1 | Relay_SPDT_Omron_G5V-1 | K5 |
| 1 | TC33X-2-503E 50k TC33x-2-503E | Potentiometer_Bourns_TC33X_Vertical | RV1 |
| 1 | DESD2CAN2SOQ-7 | SOT-23 | D1 |
| 3 | 1N4148W | D_SOD-123 | D2, D7, D8 |
| 1 | TS4148 RCG TS4148C RZG | D_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D3 |
| 1 | LED | LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D4 |
| 2 | 1N4148W 1N4148 | D_SOD-123 | D5, D6 |
| 1 | MMSZ5231B-7-F D_Zener | D_SOD-123 | D9 |
| 2 | SS16T3G SS16 | D_SMA | D10, D11 |
| 1 | LBMF1608T470K 47uH | L_0603_1608Metric_Pad1.05x0.95mm_HandSolder | L1 |
| 1 | LQM2HPN1R0MG0L 1uH | L_1008_2520Metric_Pad1.43x2.20mm_HandSolder | L2 |
| 1 | CE201210-R15J 0.15uH | L_0805_2012Metric_Pad1.15x1.40mm_HandSolder | L3 |
| 5 | CC0603KRX7R7BB104 0.1u | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C1, C2, C3, C9, C10 |
| 1 | CL10A106KQ8NNNC 10uf | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C4 |
| 1 | CL10A226MP8NUNE 22uF | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C5 |
| 4 | CL10A106KQ8NNNC 10u | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C6, C7, C8, C11 |
| 1 | 100UF 100uF | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C12 |
| 1 | CC0603KRX7R7BB104 .1uF | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C13 |
| 2 | 0.68UF 0.68uF | C_Rect_L18.0mm_W8.0mm_P15.00mm_FKS3_FKP3 | C14, C15 |
| 2 | 4700UF 4700uF | C_Radial_D18.0mm_H35.5mm_P7.50mm | C16, C17 |
| 3 | CC0603KRX7R7BB104 C | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C18, C19, C20 |
| 13 | RK73H1JTTD1002F 10k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R1, R2, R3, R4, R8, R9, R13, R15 +5 |
| 5 | WK73R1JTTD331J 330 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R5, R6, R7, R12, R17 |
| 2 | P0603C60R0BNT 60 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R10, R11 |
| 2 | RN73R1JTTD5971B25 6k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R19, R21 |
| 2 | CRGCQ0603F2K2 2.2k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R20, R22 |
| 1 | CF12JT39K0 39k | R_Axial_DIN0414_L11.9mm_D4.5mm_P15.24mm_Horizontal | R24 |
| 1 | ERA-3AEB153V 15k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R27 |
| 4 | RMCF0603FT1K00 1k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R28, R37, R38, R39 |
| 1 | RL0603FR-070R15L 0.15 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R30 |
| 1 | ERJ-8ENF1000V 100 | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R31 |
| 2 | CF18JT20K0 20k | R_Axial_DIN0309_L9.0mm_D3.2mm_P5.08mm_Vertical | R32, R33 |
| 1 | ERJ-6DSFR20V .2 | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R34 |
| 2 | RK73H1JTTD1002F 1 | R_2512_6332Metric_Pad1.40x3.35mm_HandSolder | R35, R40 |
| 1 | ERJ-3GEYJ301V 300 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R36 |
| 1 | 100 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R41 |
| 1 | RC0603JR-072K4L 2.4k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R42 |
| 1 | CRCW0603240RFKEAC 240 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R43 |
Big Daddy design files
The KiCad project lives in the uvmaero/CleanSpeed_6.0_Board repository on GitHub; these links point at the commit this page was built from.
Big Daddy: common questions
What microcontroller does the Big Daddy use?
The Big Daddy is built around the ESP32-S3-DEVKITC-1U-N8R8, from the ESP32 family.
How big is the Big Daddy PCB?
The Big Daddy measures 245.5 × 127 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the Big Daddy?
124 components, from 72 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 Big Daddy design files?
From the uvmaero/CleanSpeed_6.0_Board 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 Big Daddy design in my own project?
The repository has no license, so all rights stay with uvmaero. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Big Daddy 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 CleanSpeed_6.0_Board
On Board
313 × 71.7 mm205 parts2LNo license0
Bmsstep
313 × 71.7 mm106 parts2LNo license0
PAC-man reed
75.5 × 74.2 mm39 parts2LNo license0
PACman LV
101.6 × 67.4 mm34 parts2LNo license0- schematic only · 15 parts
Pre:discharge
15 parts2LNo license0 
ESP32MainBMS
94 × 64.8 mm12 parts2LNo license0
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