Main pcb v2
About the Main pcb v2
Main pcb v2 is an open source NXP PCB design by Potato-eater, published on GitHub. It is a 2-layer board measuring 145 × 145 mm, with 56 components from 42 distinct parts.
Its main chip is the Teensy Left, from the NXP family. Other key parts include the TPS54302. By type, the board carries 19 connectors, 10 resistors, 9 capacitors, 8 diodes, 3 battery holders and 3 switches.
From the project
github repo for Robocup Junior Australia lightweight soccer team
poster for state competition: https://canva.link/pb0ula68jbszzvj
All programs are annotated within their own files.
Main components on the Main pcb v2
Main pcb v2 bill of materials (BOM)
56 components, 42 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | TPS54302 | SOT-23-6 | U1 |
| 1 | AON7409 TECH PUBLIC(台舟) | WDFN-8_L3.0-W3.0-P0.65-LS3.3-BL-EP | Q1 |
| 1 | AON7524 | DFN-8_L3.0-W3.0-P0.65-BL | Q2 |
| 1 | C136657 MotorTL | CONN-SMD_SM05B-SRSS-TB-LF-SN | CN1 |
| 1 | C136657 MotorTR | CONN-SMD_SM05B-SRSS-TB-LF-SN | CN2 |
| 1 | C136657 MotorBL | CONN-SMD_SM05B-SRSS-TB-LF-SN | CN3 |
| 1 | C136657 MotorBR | CONN-SMD_SM05B-SRSS-TB-LF-SN | CN4 |
| 1 | C160404 OTOS | CONN-SMD_4P-P1.00_SM04B-SRSS-TB-LF-SN | CN5 |
| 1 | Teensy Left | PinSocket_1x24_P2.54mm_Vertical | J1 |
| 1 | Teensy Right | PinSocket_1x24_P2.54mm_Vertical | J2 |
| 1 | EXTRA1 | PinSocket_1x05_P2.54mm_Vertical | J3 |
| 1 | EXTRA2 | PinSocket_1x04_P2.54mm_Vertical | J4 |
| 1 | EXTRA3 | PinSocket_1x04_P2.54mm_Vertical | J5 |
| 1 | DB_OUT | JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J6 |
| 1 | EXTRA_I2C | JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J7 |
| 1 | CONN_01X03 Conn_01x03 | PinSocket_1x03_P2.54mm_Vertical | J8 |
| 1 | BD Left | PinSocket_1x06_P2.54mm_Vertical | J12 |
| 1 | BD Right | PinSocket_1x06_P2.54mm_Vertical | J13 |
| 1 | IR Sensor | JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J14 |
| 1 | Line Sensor | JST_XH_B4B-XH-A_1x04_P2.50mm_Vertical | J15 |
Show 22 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | CAM | JST_XH_B4B-XH-A_1x04_P2.50mm_Vertical | J16 |
| 1 | Comm. | IDC-Header_2x05_P2.54mm_Vertical | J17 |
| 3 | 18650 | Altronics_S5037 | BT1, BT2, BT3 |
| 3 | SW_SPDT | CONN-TH_2P-P5.00_WJ128V-5.0-2P | SW1, SW2, SW3 |
| 1 | MOTOR LED | LED_0603_1608Metric | D1 |
| 4 | 1A Fast SMA | D_SMA | D2, D5, D6, D7 |
| 1 | OP LED | LED_0805_2012Metric | D3 |
| 1 | SS34_C13762 | SMB_L4.6-W3.6-LS5.3-RD | D4 |
| 1 | MAIN LED | LED_0603_1608Metric | D8 |
| 1 | 10UH 10uH | IND-SMD_L11.0-W10.0 | L1 |
| 1 | 10UF 10uF | C_0805_2012Metric | C1 |
| 4 | 0.1UF 0.1uF | C_0805_2012Metric | C2, C3, C8, C9 |
| 2 | 22UF 22uF | C_0805_2012Metric | C4, C5 |
| 1 | 75PF 75pF | C_0805_2012Metric | C6 |
| 1 | 0.1UF 0.1uF | C_0402_1005Metric | C10 |
| 1 | 49.9 | R_0603_1608Metric | R1 |
| 3 | 100K 100k | R_0603_1608Metric | R2, R9, R15 |
| 1 | 13.3K 13.3k | R_0603_1608Metric | R3 |
| 1 | 511K 511k | R_0603_1608Metric | R4 |
| 1 | 105K 105k | R_0603_1608Metric | R5 |
| 2 | 200R | R_0603_1608Metric | R7, R14 |
| 1 | 33R | R_0603_1608Metric | R8 |
Main pcb v2 design files
The KiCad project lives in the Potato-eater/Legacy2026 repository on GitHub; these links point at the commit this page was built from.
Main pcb v2: common questions
What microcontroller does the Main pcb v2 use?
The Main pcb v2 is built around the Teensy Left, from the NXP family.
How big is the Main pcb v2?
The Main pcb v2 measures 145 × 145 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Main pcb v2?
56 components, from 42 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 Main pcb v2 design files?
From the Potato-eater/Legacy2026 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 Main pcb v2 design in my own project?
The repository has no license, so all rights stay with Potato-eater. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Main pcb v2 without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug NXP firmware against it before you order a PCB.
More boards in Legacy2026
Earlier revisions in the repo: main_pcb
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