E9X-CAN-BT
About the E9X-CAN-BT PCB
E9X-CAN-BT is an open source ESP32 PCB design by Christian-Ristevski, published on GitHub. It is a 2-layer board measuring 74.8 × 49.8 mm, with 88 components from 54 distinct parts.
Its main chip is the ESP32-C3, from the ESP32 family. Other key parts include the MP2359DJ-LF-P, MCP1825S, MCP1725-3302E/MC, USBLC6-2SC6 and BM83SM1-00TA. By type, the board carries 36 capacitors, 16 resistors, 9 ICs, 9 diodes, 7 connectors and 4 inductors.
It belongs with the iot & wireless and audio designs in this gallery.
From the project
Using BM83 and MCP2515 to add CAN-bus connected bluetooth audio to BMW E9X series
Main components on the E9X-CAN-BT
E9X-CAN-BT bill of materials (BOM)
88 components, 54 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ESP32-C3 | QFN50P500X500X90-33N-D | IC1 |
| 1 | MP2359DJ-LF-P | TSOT-23-6_HandSoldering | U1 |
| 1 | MCP1825S | SOT-223-3_TabPin2 | U2 |
| 1 | MCP1725-3302E/MC | DFN8_2x3MC_MCH | U3 |
| 2 | USBLC6-2SC6 | SOT-23-6 | U4, U5 |
| 1 | BM83SM1-00TA | BM83_MCH | U6 |
| 1 | MCP2515-xSO | SOIC-18W_7.5x11.6mm_P1.27mm | U7 |
| 1 | MCP2562-H-SN | SOIC-8_3.9x4.9mm_P1.27mm | U8 |
| 1 | RRR040P03TL | SOT-23 | Q1 |
| 2 | IRLML6401TRPBF | SOT-23 | Q2, Q3 |
| 1 | 16MHz | Crystal_SMD_3225-4Pin_3.2x2.5mm | X1 |
| 1 | 40MHz | Crystal_SMD_3225-4Pin_3.2x2.5mm | X2 |
| 2 | Screw_Terminal_01x02 | TerminalBlock_Altech_AK300-2_P5.00mm | J1, J7 |
| 2 | SJ2-35863B1-SMT-TR | SJ2-35863B1-SMT-TR | J2, J3 |
| 2 | USB_B_Micro | USB_Micro-B_Molex-105017-0001 | J4, J5 |
| 1 | Conn_01x02_Pin | PinHeader_1x02_P2.54mm_Vertical | J6 |
| 1 | 500mA | Fuse_1812_4532Metric_Pad1.30x3.40mm_HandSolder | F1 |
| 1 | SW_Push | SW_SPST_B3U-1000P | SW1 |
| 1 | B230A-13-F | D_SMA | D1 |
| 1 | CDSOD323-T12LC | D_SOD-323_HandSoldering | D4 |
Show 34 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 4 | 5V | D_SOD-882 | D5, D6, D7, D8 |
| 2 | BLUE | LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D9, D11 |
| 1 | GREEN | D_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D10 |
| 1 | 600 @ 600MHz | L_0805_2012Metric_Pad1.05x1.20mm_HandSolder | FB1 |
| 1 | 100 @ 100M | L_0805_2012Metric_Pad1.05x1.20mm_HandSolder | FB2 |
| 1 | 14u | L_0603_1608Metric_Pad1.05x0.95mm_HandSolder | L1 |
| 1 | 2nH | L_0402_1005Metric_Pad0.77x0.64mm_HandSolder | L3 |
| 8 | 10u | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C1, C3, C4, C7, C9, C17, C23, C25 |
| 1 | 10n | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C2 |
| 2 | 4.7u | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C5, C6 |
| 1 | 1n | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C8 |
| 2 | 0.1uF | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C10, C27 |
| 2 | 470pF | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C11, C12 |
| 2 | 10uF 10V | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C13, C14 |
| 3 | 100n | C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C18, C19, C22 |
| 1 | 10u | C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C20 |
| 4 | 0.1u | C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C21, C24, C37, C38 |
| 2 | 1u | C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C26, C36 |
| 3 | 100n | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C28, C29, C34 |
| 2 | 12p | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C30, C31 |
| 2 | 10p | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C32, C33 |
| 1 | 10n | C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C35 |
| 2 | 100k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R1, R6 |
| 1 | 68k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R2 |
| 1 | 47k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R3 |
| 1 | 8k45 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R4 |
| 1 | 10k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R5 |
| 2 | 1k 1% | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R7, R8 |
| 2 | 10k 1% | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R9, R10 |
| 2 | 1k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R11, R12 |
| 1 | 22R | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R13 |
| 1 | 22R | R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R14 |
| 1 | 5k1 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R15 |
| 1 | 100k | R_0805_2012Metric | R16 |
E9X-CAN-BT design files
The KiCad project lives in the Christian-Ristevski/E9X-CAN-BT repository on GitHub; these links point at the commit this page was built from.
- LayoutECAD/BMW_BT.kicad_pcb
- SchematicECAD/BMW_BT.kicad_sch
E9X-CAN-BT: common questions
What microcontroller does the E9X-CAN-BT use?
The E9X-CAN-BT is built around the ESP32-C3, from the ESP32 family.
How big is the E9X-CAN-BT PCB?
The E9X-CAN-BT measures 74.8 × 49.8 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the E9X-CAN-BT?
88 components, from 54 distinct parts. The full bill of materials is listed on this page.
Where can I download the E9X-CAN-BT design files?
From the Christian-Ristevski/E9X-CAN-BT repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the E9X-CAN-BT design in my own project?
The repository has no license, so all rights stay with Christian-Ristevski. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the E9X-CAN-BT without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.
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