BDUCU
About the BDUCU PCB
BDUCU is an open source AVR/Arduino PCB design by HKUST-Red-Bird-Racing-EVRT, published on GitHub. It is a 2-layer board measuring 140 × 60 mm, with 169 components from 85 distinct parts.
Its main chip is the ATMEGA328P-A, from the AVR/Arduino family. Other key parts include the BQ76940DBT, MCP2515-XST, ISO1050DUB, B0505MT-1WR4 and TPS54302. By type, the board carries 70 resistors, 39 capacitors, 17 ICs, 11 diodes, 10 connectors and 8 transistors.
From the project
ELEC Github Repo for Gen 6
Main components on the BDUCU
BDUCU bill of materials (BOM)
169 components, 85 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | BQ76940DBT SGM722 | SOIC-8_3.9x4.9mm_P1.27mm_RMC_Handsolder | U1 |
| 1 | ATMEGA328P-A SGM722 | SOIC-8_3.9x4.9mm_P1.27mm_RMC_Handsolder | U2 |
| 1 | MCP2515-XST ~ | B0505MT-1WR4 | U3 |
| 1 | ISO1050DUB ~ | LOC110P | U4 |
| 1 | B0505MT-1WR4 ~ | B0505MT-1WR4 | U5 |
| 1 | TPS54302 ~ | LOC110P | U6 |
| 3 | LM358 | SOIC-8_3.9x4.9mm_P1.27mm_RMC_Handsolder | U7, U8, U9 |
| 2 | MCP2515-xST | TSSOP-20_4.4x6.5mm_P0.65mm | U10, U13 |
| 2 | TJA1050T_CM_118 | SOIC-8_3.9x4.9mm_P1.27mm_RMC_Handsolder | U11, U14 |
| 1 | ATmega328-A | TQFP-32_7x7mm_P0.8mm_L | U12 |
| 1 | 40106 | SOIC127P600X175-14N | U15 |
| 1 | LTV-847S | SOIC-16_3.9x9.9mm_P1.27mm_Handsolder | U16 |
| 1 | TPS54302 | SOT-23-6_Handsoldering_Extended_RMC | U17 |
| 1 | KY2N7002 MMBT3906 | SOT-23 | Q1 |
| 1 | AO3402 AO3400A | SOT-23 | Q2 |
| 1 | NCE60P04Y MMBT3906 | SOT-23 | Q3 |
| 3 | AO3400A | SOT-23 | Q4, Q6, Q8 |
| 2 | MMBT3906 | SOT-23 | Q5, Q7 |
| 1 | 20MHZ 20MHz | Crystal_HC49-U_Vertical_W_SMD | Y1 |
| 1 | 8MHZ 16MHz | Crystal_HC49-U_Vertical_W_SMD | Y2 |
Show 65 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 20MHz | Crystal_HC49-U_Vertical_W_SMD | Y3 |
| 1 | 559010274 Conn_01x02_Pin | Molex_Micro-Fit_3.0_43650-0200_1x02_P3.00mm_Horizontal | J1 |
| 1 | CONN_02X03_ODD_EVEN Conn_01x02_Pin | Molex_Micro-Fit_3.0_43650-0200_1x02_P3.00mm_Horizontal | J2 |
| 2 | CONN_01X05 Conn_01x02_Pin | Molex_Micro-Fit_3.0_43650-0200_1x02_P3.00mm_Horizontal | J3, J4 |
| 1 | AIR | Molex_Micro-Fit_3.0_43045-0600_2x03_P3.00mm_Horizontal_BiggerPad | J6 |
| 1 | Conn_01x02 | Molex_Micro-Fit_3.0_43045-0200_2x01_P3.00mm_Horizontal_BiggerPad | J7 |
| 1 | Conn_02x04_Top_Bottom | Molex_Micro-Fit_3.0_43045-0800_2x04_P3.00mm_Horizontal_BiggerPad | J10 |
| 3 | Conn_02x02_Top_Bottom | Molex_Micro-Fit_3.0_43045-0400_2x02_P3.00mm_Horizontal_BiggerPad | J11, J12, J13 |
| 1 | Conn_02x03_Odd_Even | PinHeader_2x03_P2.54mm_Vertical | AVR-ISP1 |
| 5 | 100nF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder_L | CA1, CA2, CA3, CA4, CA5 |
| 2 | Fuse | LittleFuse_462 | F1, F2 |
| 1 | Fuse | Fuse_1210_3225Metric_Pad1.42x2.65mm_HandSolder | F3 |
| 1 | SW_Push | SW_SPST_CK_RS282G05A3 | SW1 |
| 2 | 1N4148W BZT52B5V1 | D_SOD-123F | D1, D2 |
| 3 | 1N4148W LED | LED_0805_2012Metric_Pad1.45x1.40mm_HandSolder | D3, D4, D6 |
| 1 | BAS85 LED | LED_0805_2012Metric_Pad1.45x1.40mm_HandSolder | D5 |
| 1 | LED | LED_0805_2012Metric_Pad1.45x1.40mm_HandSolder | D7 |
| 4 | SMF16CA | D_SOD-123F | D8, D9, D10, D11 |
| 1 | 6.8UH 10uH | L_6.3x6.3_H3 | L1 |
| 9 | 1UF 100nF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder_L | C1, C2, C5, C6, C7, C10, C11, C12 +1 |
| 4 | 1UF 10uF/25V | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder_L | C3, C4, C13, C14 |
| 2 | 1UF 100nF/1% | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder_L | C8, C9 |
| 5 | 100NF 100nF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder_L | C15, C20, C21, C22, C23 |
| 3 | 4.7UF 100nF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder_L | C16, C31, C32 |
| 2 | 12PF 12pF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder_L | C18, C19 |
| 2 | 10UF 100nF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder_L | C24, C35 |
| 2 | 100NF 10uF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder_L | C25, C34 |
| 2 | 100NF 22pF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder_L | C26, C27 |
| 1 | 22PF 10uF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder_L | C28 |
| 1 | 22PF 12pF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder_L | C29 |
| 1 | 10UF 12pF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder_L | C30 |
| 1 | 100NF 47uF | C_1210_3225Metric_Pad1.33x2.70mm_HandSolder | C33 |
| 1 | 22UF 100nF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder_L | C36 |
| 1 | 22UF 22uF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder_L | C37 |
| 1 | 22uF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder_L | C38 |
| 1 | 100nF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder_L | C39 |
| 12 | 210k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L | R1, R2, R3, R4, R5, R6, R7, R8 +4 |
| 9 | 10k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L | R10, R14, R48, R49, R50, R52, R53, R54 +1 |
| 1 | 500K 1k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L | R15 |
| 1 | 10M 1k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L | R16 |
| 2 | 10K 100k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L | R17, R33 |
| 1 | 4.7K 100k/1% | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L | R18 |
| 1 | 10K 100k/1% | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L | R19 |
| 2 | 4.7K 100k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L | R20, R22 |
| 1 | 120R 100k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L | R21 |
| 1 | 174K 10M | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L | R23 |
| 2 | 10K 10k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L | R24, R26 |
| 1 | 174K 10k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L | R25 |
| 1 | 10M 120 | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L | R27 |
| 1 | 10K 10M | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L | R28 |
| 5 | 10K 1k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L | R29, R32, R34, R35, R36 |
| 1 | 10K 4.7k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L | R30 |
| 1 | 120R 1k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L | R31 |
| 2 | 100K 100k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L | R37, R41 |
| 1 | 22.1K 1k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L | R38 |
| 1 | 511K 1k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L | R39 |
| 1 | 105K 1k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L | R40 |
| 1 | 301K 1k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L | R42 |
| 11 | 1k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L | R43, R44, R46, R56, R57, R58, R59, R60 +3 |
| 2 | 100k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L | R45, R69 |
| 1 | 10M | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L | R47 |
| 1 | 120 | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L | R51 |
| 4 | 4.7k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L | R64, R65, R66, R67 |
| 1 | 49R9 | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L | R68 |
| 1 | 13k3 | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L | R70 |
BDUCU design files
The KiCad project lives in the HKUST-Red-Bird-Racing-EVRT/GEN6_ELEC repository on GitHub; these links point at the commit this page was built from.
- LayoutBDUCU/BDUCU.kicad_pcb
- SchematicBDUCU/BDUCU.kicad_sch
- BOMAMS slave/AMS slave BOM.csv
BDUCU: common questions
What microcontroller does the BDUCU use?
The BDUCU is built around the ATMEGA328P-A, from the AVR/Arduino family.
How big is the BDUCU PCB?
The BDUCU measures 140 × 60 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the BDUCU?
169 components, from 85 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 BDUCU design files?
From the HKUST-Red-Bird-Racing-EVRT/GEN6_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 BDUCU 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 BDUCU without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug AVR/Arduino firmware against it before you order a PCB.
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