Mre hw motronic
About the Mre hw motronic PCB
Mre hw motronic is an open source ESP32 PCB design by ksmola, published on GitHub. It is a 2-layer board measuring 175 × 129 mm, with 51 components from 36 distinct parts.
Its main chip is the ESP32-WROOM-32, from the ESP32 family. Other key parts include the C145231, BOSCH_55P, molex_48pin_MRE, C52028 and C469861. By type, the board carries 17 resistors, 16 capacitors, 8 ICs, 3 transistors, 3 connectors and 2 inductors.
Main components on the Mre hw motronic
Mre hw motronic bill of materials (BOM)
51 components, 36 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | C145231 SFH617A-2X009T | SMDIP-4_W9.53mm | U1 |
| 1 | BOSCH_55P | TE_963063-2 | U2 |
| 1 | molex_48pin_MRE | Molex_48_MRE | U3 |
| 1 | C52028 MAX31855KASA | SOIC-8_3.9x4.9mm_P1.27mm | U4 |
| 1 | C469861 TPIC8101 | SOIC-20W_7.5x12.8mm_P1.27mm | U5 |
| 1 | TE_6437288-6 | TE_6437288-6 | U7 |
| 1 | ESP32-WROOM-32 | ESP32-WROOM-32 | U8 |
| 1 | MPXA6400A | MPXA4250A6U | U9 |
| 1 | C282568 Q_NIGBT_CEG | TO-252-2 | Q1 |
| 2 | Q_NIGBT_CEG | TO-252-2 | Q2, Q3 |
| 1 | OMEGA PCC_SMP_K | PCC-SMP-MIN | J1 |
| 1 | CONN_01X02_FEMALE Conn_01x02_Female | Molex_PicoBlade_53047-0210_1x02_P1.25mm_Vertical | J2 |
| 1 | CONN_01X03_FEMALE Conn_01x03_Male | PinSocket_1x03_P1.27mm_Vertical_SMD_Pin1Left | J3 |
| 1 | C70377 Battery_Cell | BatteryHolder_Keystone_1060_1x2032 | BT1 |
| 1 | C64898 LED | LED_0603_1608Metric | D1 |
| 2 | 470 Ohm | L_1206_3216Metric | L1, L2 |
| 1 | 1UF 1uF | C_0805_2012Metric | C1 |
| 1 | 0.01UF 0.01uF | C_0805_2012Metric | C2 |
| 1 | 470PF 470pF | C_0805_2012Metric | C3 |
| 1 | 0.1UF 0.1uF | C_0805_2012Metric | C4 |
Show 16 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 10UF 10uF | C_0805_2012Metric | C5 |
| 1 | 10NF 10nF | C_0805_2012Metric | C6 |
| 1 | 4.7UF 4.7uF | C_0805_2012Metric | C7 |
| 3 | 100NF 100nF | C_0805_2012Metric | C8, C9, C11 |
| 2 | 3.3NF 3.3nF | C_0805_2012Metric | C10, C12 |
| 3 | 0.1uF | C_0805_2012Metric | C13, C14, C16 |
| 1 | 10uF | C_0805_2012Metric | C15 |
| 1 | 750 | R_0805_2012Metric | R1 |
| 3 | 1K | R_0805_2012Metric | R2, R3, R5 |
| 2 | 10K | R_0805_2012Metric | R4, R6 |
| 4 | 39K | R_0805_2012Metric | R7, R8, R11, R12 |
| 1 | 5K | R_0805_2012Metric | R9 |
| 1 | 7.5K 220 | R_0805_2012Metric | R10 |
| 2 | 220 | R_0805_2012Metric | R13, R14 |
| 2 | 10K | R_0805_2012Metric | R15, R17 |
| 1 | 100 | R_0805_2012Metric | R16 |
Mre hw motronic design files
The KiCad project lives in the ksmola/mre_hw_motronic repository on GitHub; these links point at the commit this page was built from.
Mre hw motronic: common questions
What microcontroller does the Mre hw motronic use?
The Mre hw motronic is built around the ESP32-WROOM-32, from the ESP32 family.
How big is the Mre hw motronic PCB?
The Mre hw motronic measures 175 × 129 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Mre hw motronic?
51 components, from 36 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 Mre hw motronic design files?
From the ksmola/mre_hw_motronic repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.
Can I use the Mre hw motronic design in my own project?
The repository has no license, so all rights stay with ksmola. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Mre hw motronic 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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