ESC
About the ESC PCB
ESC is an open source STM32 PCB design by WilliamLim781, published on GitHub. It is a 4-layer board measuring 66.6 × 64.2 mm, with 59 components from 38 distinct parts.
Its main chip is the C84808, from the STM32 family. Other key parts include the C7432801, C481766, C2827693 and C629432. By type, the board carries 22 capacitors, 9 resistors, 6 transistors, 6 jumpers, 5 ICs and 4 connectors.
Main components on the ESC
ESC bill of materials (BOM)
59 components, 38 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | C84808 STM32F411RETx | LQFP-64_10x10mm_P0.5mm | U1 |
| 1 | C7432801 AMS1117 | SOT-223-3_TabPin2 | U2 |
| 1 | C481766 IRS2101 | SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.81mm | U5 |
| 1 | C2827693 IRS2101 | SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.81mm | U6 |
| 1 | C629432 IRS2101 | SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.81mm | U7 |
| 6 | BSC028N06LS3 | TDSON-8-1 | Q1, Q2, Q3, Q4, Q5, Q6 |
| 1 | 12MHZ 16Mhz? | Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | Conn_01x02_Socket | AMASS_XT60PW-F_1x02_P7.20mm_Horizontal | J1 |
| 1 | CAN2 Conn_01x03 | AMASS_MR30PW-FB_1x03_P3.50mm_Horizontal | J2 |
| 1 | CAN1 swd | PinHeader_1x04_P2.54mm_Vertical | J4 |
| 1 | input | PinHeader_1x03_P2.54mm_Vertical | J5 |
| 6 | jump | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | JP1, JP2, JP3, JP4, JP5, JP6 |
| 1 | pot | Potentiometer_Alps_RK09K_Single_Horizontal | RV1 |
| 1 | Boot0 | SW_SPDT_PCM12 | SW1 |
| 1 | NRST | SW_SPST_PTS645 | SW2 |
| 2 | C72038 D | D_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D1, D2 |
| 1 | D | D_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D3 |
| 3 | C14663 100n | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C1, C2, C5 |
| 2 | C282508 100n | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C3, C4 |
| 1 | C1620 1u | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C6 |
Show 18 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | C15849 4.7u | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C7 |
| 1 | C14663 C | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C8 |
| 1 | C1653 C | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C9 |
| 1 | C1653 100n | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C10 |
| 3 | 100n 50V | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C13, C18, C21 |
| 2 | 2u7 50V | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C14, C20 |
| 3 | 4u7 | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C15, C19, C22 |
| 1 | 22u | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C16 |
| 1 | 10u | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C17 |
| 1 | C14663 2u7 50V | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C23 |
| 1 | C14663 4u7 | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C33 |
| 2 | C22787 200 | R_2512_6332Metric_Pad1.40x3.35mm_HandSolder | R1, R2 |
| 1 | C25804 10k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R3 |
| 1 | 11k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R4 |
| 1 | C509091 200 | R_2512_6332Metric_Pad1.40x3.35mm_HandSolder | R5 |
| 2 | C4190 200 | R_2512_6332Metric_Pad1.40x3.35mm_HandSolder | R6, R7 |
| 1 | C23186 200 | R_2512_6332Metric_Pad1.40x3.35mm_HandSolder | R8 |
| 1 | C25804 Current limiter | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R9 |
ESC design files
The KiCad project lives in the WilliamLim781/PCB_practice repository on GitHub; these links point at the commit this page was built from.
- LayoutESC/ESC.kicad_pcb
- SchematicESC/ESC.kicad_sch
- BOMRev2.1/BOM/BOM.csv
ESC: common questions
What microcontroller does the ESC use?
The ESC is built around the C84808, from the STM32 family.
How big is the ESC PCB?
The ESC measures 66.6 × 64.2 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the ESC?
59 components, from 38 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 ESC design files?
From the WilliamLim781/PCB_practice 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 ESC design in my own project?
The repository has no license, so all rights stay with WilliamLim781. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the ESC without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug STM32 firmware against it before you order a PCB.
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