VCU V3
About the VCU V3 PCB
VCU V3 is an open source ESP32 PCB design by HKUST-Red-Bird-Racing-EVRT, published on GitHub. It is a 2-layer board measuring 114 × 95 mm, with 90 components from 45 distinct parts.
Its main chip is the ESP32-S3-WROOM-2, from the ESP32 family. Other key parts include the CH340C, TJA1051T-3, LM2576S-5, AMS1117-3.3 and LM324. By type, the board carries 29 resistors, 28 capacitors, 10 ICs, 6 transistors, 6 diodes and 4 crystals.
From the project
Repository for RBR EVRT 2025 EE
Main components on the VCU V3
VCU V3 bill of materials (BOM)
90 components, 45 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ESP32-S3-WROOM-2 ATmega328P-A | TQFP-32_7x7mm_P0.8mm_L | U1 |
| 1 | CH340C MCP2515-xSO | SOIC-18W_7.5x11.6mm_P1.27mm_L | U2 |
| 1 | TJA1051T-3 TJA1051T | SOIC-8_3.9x4.9mm_P1.27mm | U3 |
| 1 | LM2576S-5 MCP2515-xSO | SOIC-18W_7.5x11.6mm_P1.27mm_L | U4 |
| 1 | AMS1117-3.3 | SOT-223-3_TabPin2 | U5 |
| 1 | LM324 LM2575-5.0BU | TO-263-5_TabPin3 | U6 |
| 1 | TXS0102DCU TJA1051T | SOIC-8_3.9x4.9mm_P1.27mm | U7 |
| 1 | 74LVC1G17 MCP2515-xSO | SOIC-18W_7.5x11.6mm_P1.27mm_L | U8 |
| 1 | MT3608/SDB628 TJA1051T | SOIC-8_3.9x4.9mm_P1.27mm | U9 |
| 1 | 74HC595 | SOIC-16_3.9x9.9mm_P1.27mm | U10 |
| 2 | MMBT3904 Q_PMOS_DGS | SOT-23 | Q1, Q2 |
| 3 | MMBT3904 | SOT-23 | Q3, Q4, Q5 |
| 1 | Q_PMOS_DGS | SOT-23 | Q6 |
| 4 | 16MHz | Crystal_HC49-U_Vertical_W_SMD | Y1, Y2, Y3, Y4 |
| 1 | CONN_01X03 AVR-ISP-6 | PinHeader_2x03_P2.54mm_Vertical | J1 |
| 1 | CONN_01X02 Conn_01x24 | HD241_24pin | J3 |
| 1 | CONN_01X04 Conn_01x24 | HD241_24pin | J6 |
| 1 | Fuse | Fuse_1210_3225Metric_Pad1.42x2.65mm_HandSolder | F1 |
| 2 | SW_Push | SW_PUSH_6mm_H5mm | SW1, SW2 |
| 5 | IR204A | LED_1206_3216Metric_Pad1.42x1.75mm_HandSolder | D2, D3, D4, D6, D7 |
Show 25 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 1N5819 | D_SMA_Handsoldering | D5 |
| 1 | 330UH 330uH | L_10.4x10.4_H4.8 | L1 |
| 14 | 100NF 100nF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder_L | C1, C3, C4, C10, C12, C15, C16, C18 +6 |
| 1 | 10UF 10uF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder_L | C2 |
| 3 | 100NF 10uF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder_L | C5, C14, C27 |
| 5 | 100NF 22pF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder_L | C6, C8, C13, C22, C23 |
| 1 | 100UF 22pF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder_L | C7 |
| 1 | 22UF 22pF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder_L | C9 |
| 1 | 330UF 22pF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder_L | C11 |
| 1 | 100NF 22uF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder_L | C17 |
| 1 | 100NF 330uF | CP_Radial_D10.0mm_P5.00mm_F | C29 |
| 1 | 4K7 330R | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L | R1 |
| 2 | 330R | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L | R2, R3 |
| 1 | 10K 4.7k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L | R4 |
| 1 | 10K 10k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L | R5 |
| 1 | 120R | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L | R6 |
| 2 | 10k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L | R7, R9 |
| 2 | 120R | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L | R8, R10 |
| 9 | 1k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L | R11, R12, R14, R15, R16, R17, R19, R20 +1 |
| 3 | 100k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L | R13, R18, R22 |
| 1 | 249K 1k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L | R23 |
| 1 | 10R 1k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L | R24 |
| 1 | 10R 4.7k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L | R25 |
| 2 | 10R 10M | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L | R26, R27 |
| 2 | 10M | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L | R28, R29 |
VCU V3 design files
The KiCad project lives in the HKUST-Red-Bird-Racing-EVRT/GEN5_ELEC repository on GitHub; these links point at the commit this page was built from.
VCU V3: common questions
What microcontroller does the VCU V3 use?
The VCU V3 is built around the ESP32-S3-WROOM-2, from the ESP32 family.
How big is the VCU V3 PCB?
The VCU V3 measures 114 × 95 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the VCU V3?
90 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 VCU V3 design files?
From the HKUST-Red-Bird-Racing-EVRT/GEN5_ELEC 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 VCU V3 design in my own project?
The repository has no license, so all rights stay with HKUST-Red-Bird-Racing-EVRT. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the VCU V3 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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Earlier revisions in the repo: VCU V3.2
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