RML HVI
About the RML HVI PCB
RML HVI is an open source NXP PCB design by LSUTigerRacing, published on GitHub. It is a 2-layer board measuring 81 × 34 mm, with 39 components from 39 distinct parts.
Its main chip is the TEENSY4.0, from the NXP family. Other key parts include the TJA1051T-3, SPAN02A-12, LM1117-5.0 and 4N35. By type, the board carries 13 capacitors, 12 resistors, 6 ICs, 3 connectors, 2 transistors and 2 diodes.
From the project
This repository contains all of the KiCad Schematics for the 2026 TigerRacing Formula SAE's Electronics Subsystem.
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Main components on the RML HVI
RML HVI bill of materials (BOM)
39 components, 39 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | TJA1051T-3 TLV3701QDBVREP | SOT-23-5 | U1 |
| 1 | SPAN02A-12 HV9961LG-G | SOIC-8_3.9x4.9mm_P1.27mm | U2 |
| 1 | TEENSY4.0 Optocoupler | Q_Wurth_WL-OCPT_LSOP4-STANDARD | U3 |
| 1 | LM1117-5.0 LM555xM | SOIC-8_3.9x4.9mm_P1.27mm | U4 |
| 1 | 4N35 LM1117DT-5.0 | TO-252-3_TabPin2 | U5 |
| 1 | 4N35 74AHC1G02 | SOT-23-5 | U6 |
| 1 | 2N7002 Q_NMOS_GSD | TO-252-3_TabPin2 | Q1 |
| 1 | MMBT3906 Q_NMOS_GSD | SOT-23 | Q2 |
| 1 | Tyco | tyco | J1 |
| 1 | MINI-FIT_JR_5566-04A Tyco | tyco | J2 |
| 1 | 447690401 NANOFIT-4PIN | Molex_Nano-Fit_105313-xx04_1x04_P2.50mm_Horizontal | J3 |
| 1 | US1J | D_SMA | D1 |
| 1 | 10V | Nexperia_CFP3_SOD-123W | D2 |
| 1 | 15m | IND_BOURNS_SRR0908 | L1 |
| 1 | 100N 100n | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C1 |
| 1 | 100N 0.33u | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C2 |
| 1 | 1u | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C3 |
| 1 | 220U 47u | CP_Elec_6.3x5.4 | C4 |
| 1 | 220U .1u | C_1210_3225Metric | C5 |
| 1 | 220U 2.2u | CAPC6050X550N | C6 |
Show 19 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 220U 1u | C_1210_3225Metric | C7 |
| 1 | 1u | C_1210_3225Metric | C8 |
| 1 | 100n | C_0603_1608Metric | C9 |
| 1 | 2u | C_0805_2012Metric | C10 |
| 1 | 100N 1u | C_0603_1608Metric | C11 |
| 1 | 100N 100n | C_0603_1608Metric | C12 |
| 1 | 10N 1u | C_0603_1608Metric | C13 |
| 1 | 200 10k | R_0805_2012Metric | R5 |
| 1 | 20K 680 | R_0805_2012Metric | R6 |
| 1 | 6K8 47k | R_1206_3216Metric | R7 |
| 1 | 10K 100k | R_1206_3216Metric | R8 |
| 1 | 20K 205k | R_1210_3225Metric | R9 |
| 1 | 6K8 35k | R_0402_1005Metric | R10 |
| 1 | 12K 13.7R | R_0805_2012Metric | R13 |
| 1 | 560 750k | R_0805_2012Metric | R15 |
| 1 | 100k | R_0805_2012Metric | R16 |
| 1 | 12K 200k | R_0805_2012Metric | R17 |
| 1 | 560 180k | R_1210_3225Metric | R18 |
| 1 | 220 10R | R_0201_0603Metric | R19 |
RML HVI design files
The KiCad project lives in the LSUTigerRacing/Electronics repository on GitHub; these links point at the commit this page was built from.
RML HVI: common questions
What microcontroller does the RML HVI use?
The RML HVI is built around the TEENSY4.0, from the NXP family.
How big is the RML HVI PCB?
The RML HVI measures 81 × 34 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the RML HVI?
39 components, from 39 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 RML HVI design files?
From the LSUTigerRacing/Electronics 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 RML HVI design in my own project?
The repository has no license, so all rights stay with LSUTigerRacing. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the RML HVI 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.
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