Science
About the Science PCB
Science is an open source PCB design by SJSURoboticsTeam, published on GitHub. It is a 2-layer board measuring 107 × 63 mm, with 78 components from 40 distinct parts.
Other key parts include the LF33CPT-TR, PCA9685PW and AMS1117-5.0. By type, the board carries 23 resistors, 9 capacitors, 7 diodes, 4 LEDs, 3 ICs and 3 transistors.
From the project
The 2024 - 2026 rover electrical monorepo
This is the repository for the SJSU Robotics Club Electrical team repository from 2024-2026.
Main components on the Science
Science bill of materials (BOM)
78 components, 40 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | LF33CPT-TR | TO-252AD | U1 |
| 1 | PCA9685PW | TSSOP-28_4.4x9.7mm_P0.65mm | U2 |
| 1 | AMS1117-5.0 | SOT-223-3_TabPin2 | U3 |
| 1 | Q_NMOS_GDS | SOT-23 | Q7 |
| 2 | Q_NMOS_GDS | TO-252-2 | Q8, Q9 |
| 1 | Conn_02x03_Odd_Even | PinHeader_2x03_P2.54mm_Vertical | J7 |
| 1 | MicroMod | micromod | J16 |
| 1 | xT60F | AMASS_XT60PW-F_1x02_P7.20mm_Horizontal | 24VIP1 |
| 1 | xT60M | AMASS_XT60PW-M_1x02_P7.20mm_Horizontal | 40VOP1 |
| 1 | 270srv1 | TerminalBlock_Xinya_XY308-2.54-3P_1x03_P2.54mm_Horizontal | 270srv1 |
| 1 | 270srv2 | TerminalBlock_Xinya_XY308-2.54-3P_1x03_P2.54mm_Horizontal | 270srv2 |
| 1 | extr2 | TerminalBlock_Xinya_XY308-2.54-3P_1x03_P2.54mm_Horizontal | 270srvX1 |
| 1 | 360srv1 | TerminalBlock_Xinya_XY308-2.54-3P_1x03_P2.54mm_Horizontal | 360srv1 |
| 1 | 360srv2 | TerminalBlock_Xinya_XY308-2.54-3P_1x03_P2.54mm_Horizontal | 360srv2 |
| 1 | extr1 | TerminalBlock_Xinya_XY308-2.54-3P_1x03_P2.54mm_Horizontal | 360srvX1 |
| 4 | Conn_01x04 | PinHeader_1x04_P2.54mm_Vertical | EXT_PWR1, LT1, LT2, RGB1 |
| 1 | Fuse_Small | Fuseholder_Littelfuse_Nano2_154x | F1 |
| 4 | Screw_Terminal_01x02 | TerminalBlock_Xinya_XY308-2.54-2P_1x02_P2.54mm_Horizontal | FAN1, LSR1, LSR2, PWR1 |
| 1 | ~ | BAT_HOLD | FAN_BATT1 |
| 4 | Hall | TerminalBlock_Xinya_XY308-2.54-3P_1x03_P2.54mm_Horizontal | Hall1, Hall2, Hall3, Hall4 |
Show 20 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | Conn_02x03_Odd_Even | PinHeader_2x03_P2.54mm_Vertical | I2C1 |
| 2 | SW_SPST | SW_SPST_CK_RS282G05A3 | SW1, SW2 |
| 1 | Conn_02x05_Odd_Even | SWD_Conn | SWD1 |
| 1 | USB_C_Receptacle_USB2.0_16P | USB_C_Receptacle_HRO_TYPE-C-31-M-12 | USB_DATA1 |
| 4 | LED_GRN | LED_0805_2012Metric | +3.3V1, +5V1, +24V1, VBAT1 |
| 1 | LED_BLU | LED_0603_1608Metric | D7 |
| 1 | B250 | D_SMB | D8 |
| 4 | D_Schottky | D_SMA | D9, D10, D11, D12 |
| 1 | SMBJ45CA | D_SMB_Handsoldering | D13 |
| 5 | 100nF | C_0603_1608Metric | C1, C2, C3, C4, C7 |
| 4 | 10uF | C_0603_1608Metric | C5, C6, C8, C9 |
| 7 | 10k | R_0603_1608Metric | R13, R16, R17, R18, R23, R30, R31 |
| 2 | 100k | R_0603_1608Metric | R14, R15 |
| 1 | 560 | R_0603_1608Metric | R19 |
| 5 | 5.1k | R_0603_1608Metric | R20, R21, R27, R28, R29 |
| 1 | 39k | R_0603_1608Metric | R22 |
| 2 | 2.2k | R_0603_1608Metric | R24, R26 |
| 1 | 500 | R_0603_1608Metric | R25 |
| 2 | 6.8k | R_0603_1608Metric | R32, R34 |
| 2 | 100 | R_0603_1608Metric | R33, R35 |
Science design files
The KiCad project lives in the SJSURoboticsTeam/urc-electrical-2026 repository on GitHub; these links point at the commit this page was built from.
- LayoutScience/Science.kicad_pcb
- SchematicScience/Science.kicad_sch
Science: common questions
How big is the Science PCB?
The Science measures 107 × 63 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Science?
78 components, from 40 distinct parts. The full bill of materials is listed on this page.
Where can I download the Science design files?
From the SJSURoboticsTeam/urc-electrical-2026 repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Science design in my own project?
The repository has no license, so all rights stay with SJSURoboticsTeam. Use it as a reference, and ask the author before reusing the design.
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