Mpair
About the Mpair PCB
Mpair is an open source ESP32 PCB design by marpi82, published on GitHub. It is a 2-layer board measuring 100 × 102 mm, with 193 components from 89 distinct parts.
Its main chip is the Espressif Systems, from the ESP32 family. Other key parts include the Shenzhen Slkormicro Semicon Co., Ltd., Silicon Labs, Texas Instruments, WIZnet and TPS23754PWPR. By type, the board carries 71 resistors, 58 capacitors, 15 diodes, 14 inductors, 11 ICs and 11 connectors.
It belongs with the sensors, iot & wireless and displays & leds designs in this gallery.
From the project
Advanced Air Quality Monitoring Station based on ESP32's
Advanced Air Quality Monitoring Station ========================================
mpair is an open-source IoT air quality monitoring station with support for Matter/Thread protocol, PoE+ connectivity, and professional-grade sensors.
.. image:: https://img.shields.io/badge/Hardware-CERN--OHL--S--2.0-blue :target: LICENSE-hardware.rst :alt: Hardware License
.. image:: https://img.shields.io/badge/Software-GPL--3.0-green :target: LICENSE-software.rst :alt: Software License
Main components on the Mpair
Mpair bill of materials (BOM)
193 components, 89 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | Shenzhen Slkormicro Semicon Co., Ltd. USBLC6-2SC6 | SOT-23-6 | U1 |
| 1 | Silicon Labs CP2102N | QFN-24-1EP_4x4mm_P0.5mm_EP2.6x2.6mm | U2 |
| 1 | Texas Instruments ESDS314 | SOT-23-5 | U3 |
| 1 | WIZnet W5500 | LQFP-48_7x7mm_P0.5mm | U4 |
| 1 | TPS23754PWPR TPS23754 | HTSSOP-20-1EP_4.4x6.5mm_P0.65mm_EP2.85x4mm | U5 |
| 1 | onsemi HMHA2801A | SOIC-4_4.55x2.6mm_P1.27mm | U6 |
| 1 | SHARP/Socle Technology PC357N | OnSemi_751EP_SOIC-4_3.9x4.725mm_P2.54mm | U7 |
| 2 | Texas Instruments TPS563208 | SOT-23-6 | U8, U9 |
| 1 | Espressif Systems ESP32-C6-WROOM-1U | ESP32-C6-WROOM-1U | U10 |
| 1 | Texas Instruments 74AHCT1G125 | SOT-353_SC-70-5 | U11 |
| 1 | Nexperia USA Inc. BC846B | SOT-363_SC-70-6 | Q1 |
| 1 | onsemi FDMC2523P | FDMC_2523P | Q2 |
| 1 | onsemi FDS86242 | FDS_86242 | Q3 |
| 2 | Texas Instruments CSD19534Q | CSD19534Q | Q4, Q7 |
| 2 | Diodes Incorporated FCX493 | SOT-89-3 | Q5, Q6 |
| 1 | Taiwan Semiconductor Corporation MMBT3904 | SC-59 | Q8 |
| 1 | ECS Inc. ECS-2520MV-250 | Oscillator_SMD_ECS_2520MV-xxx-xx-4Pin_2.5x2.0mm | Y1 |
| 2 | Same Sky (Formerly CUI Devices) PJ-063AH | BarrelJack_CUI_PJ-063AH_Horizontal | J1, J2 |
| 1 | JAE Electronics DX07S016JA1R1500 | USB_C_Receptacle_JAE_DX07S016JA1R1500 | J3 |
| 1 | Abracon LLC ARJP11A-MASA-B-A-EMU2 | RJ45_Abracon_ARJP11A-MA_Horizontal | J4 |
Show 69 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | JST Sales America Inc. ~ | JST_ZH_B6B-ZR-SM4-TF_1x06-1MP_P1.50mm_Vertical | J5 |
| 1 | JST Sales America Inc. ~ | JST_ZH_B5B-ZR-SM4-TF_1x05-1MP_P1.50mm_Vertical | J6 |
| 2 | JST Sales America Inc. ~ | JST_ZH_B4B-ZR-SM4-TF_1x04-1MP_P1.50mm_Vertical | J7, J8 |
| 3 | Molex ~ | Molex_KK-254_AE-6410-03A_1x03_P2.54mm_Vertical | J9, J10, J11 |
| 1 | Omron Electronics Inc-EMC Div G6K-2G-TR DC5 | Relay_DPDT_Omron_G6K-2G | K1 |
| 2 | TE Connectivity ~ | SW_SPST_FSMSM | SW1, SW2 |
| 1 | PA4065NL | PA4065NL | T1 |
| 2 | Comchip Technology SS210 | D_SMA | D1, D2 |
| 2 | Kyocera GG0603052R542P | D_0603_1608Metric | D3, D4 |
| 2 | Diodes Incorporated SMBJ58CA | D_SMB | D5, D6 |
| 3 | Taiwan Semiconductor Corporation MMBD4148 | SC-59 | D7, D10, D14 |
| 1 | Shenzhen Slkormicro Semicon Co., Ltd. MMBD4148CC | SC-59 | D8 |
| 1 | Shenzhen Slkormicro Semicon Co., Ltd. BAT54S | SC-59 | D11 |
| 1 | Texas Instruments TL431 | SC-59 | D12 |
| 2 | Shenzhen Slkormicro Semicon Co., Ltd. MMSZ5240 | D_SOD-123 | D13, D15 |
| 1 | Diodes Incorporated 1N4148W | D_SOD-123 | D16 |
| 4 | TDK Corporation MPZ2012S101AT000 | L_0805_2012Metric | L1, L2, L3, L4 |
| 3 | Murata Electronics BLM21PG600SN1D | L_0805_2012Metric | L5, L6, L14 |
| 1 | Taiyo Yuden FBMH1608HL121-TV | L_0603_1608Metric | L7 |
| 1 | Bourns Inc. SRF3225TP-501Y | SRF3225TAC_BRN | L8 |
| 1 | Bourns Inc. SRU8028-3R3Y | L_Bourns-SRU8028_8.0x8.0mm | L9 |
| 1 | TDK Corporation LPS6235-155MRC | L_TDK_SLF10145 | L10 |
| 1 | Bourns Inc. SRR1280-220M | L_Bourns_SRR1280 | L11 |
| 1 | Eaton - Electronics Division 3.3uH | DR74 | L12 |
| 1 | Eaton - Electronics Division 2.2uH | DR74 | L13 |
| 19 | Samsung 0,1uF | C_0603_1608Metric | C1, C2, C4, C5, C8, C13, C15, C16 +11 |
| 3 | Kemet 1nF/2kV | C_1812_4532Metric | C3, C34, C35 |
| 5 | Samsung 1uF | C_0805_2012Metric | C6, C25, C36, C54, C55 |
| 8 | Samsung 22uF | C_1210_3225Metric | C7, C9, C28, C50, C51, C52, C53, C57 |
| 2 | Murata 22nF | C_0603_1608Metric | C10, C37 |
| 2 | Kyocera 6,8nF | C_0603_1608Metric | C11, C12 |
| 3 | Samsung 10nF | C_0603_1608Metric | C14, C20, C29 |
| 1 | Samsung 4,7uF | C_0805_2012Metric | C18 |
| 1 | Samsung 0,1uF | C_0805_2012Metric | C24 |
| 1 | Kemet 0,047uF | C_1206_3216Metric | C26 |
| 1 | Panasonic 22uF/63V | CP_Elec_8x6.2 | C27 |
| 2 | Samsung 2.2uF/1206 | C_1210_3225Metric | C32, C33 |
| 2 | Samsung 100pF | C_0603_1608Metric | C38, C39 |
| 6 | TDK 10uF/1206 | C_1210_3225Metric | C40, C41, C44, C45, C46, C47 |
| 2 | Panasonic 100uF/25V | CP_Elec_8x10 | C42, C43 |
| 1 | Vishay Dale 1MΩ | R_0603_1608Metric | R1 |
| 2 | Vishay Dale 5,1kΩ | R_0603_1608Metric | R2, R3 |
| 1 | Vishay Dale 22,1kΩ | R_0603_1608Metric | R4 |
| 10 | Vishay Dale 0Ω | R_0603_1608Metric | R5, R6, R12, R21, R22, R23, R25, R26 +2 |
| 6 | Vishay Dale 1kΩ | R_0603_1608Metric | R7, R28, R29, R30, R31, R52 |
| 1 | Vishay Dale 47,5kΩ | R_0603_1608Metric | R8 |
| 11 | Vishay Dale 10kΩ | R_0603_1608Metric | R9, R10, R11, R40, R49, R53, R57, R59 +3 |
| 1 | Vishay Dale 10Ω | R_0603_1608Metric | R13 |
| 4 | Vishay Dale 49,9Ω | R_0603_1608Metric | R14, R15, R16, R17 |
| 1 | Vishay Dale 12,4kΩ | R_0603_1608Metric | R18 |
| 3 | Vishay Dale 330Ω | R_0603_1608Metric | R19, R20, R70 |
| 1 | Vishay Dale 33Ω | R_0603_1608Metric | R24 |
| 3 | Vishay Dale 100kΩ | R_0603_1608Metric | R32, R36, R41 |
| 1 | Vishay Dale 4,64kΩ | R_0603_1608Metric | R33 |
| 1 | Vishay Dale 69,8kΩ | R_0603_1608Metric | R34 |
| 1 | Vishay Dale 40,2kΩ | R_0603_1608Metric | R35 |
| 1 | Vishay Dale 63,4kΩ | R_0603_1608Metric | R37 |
| 2 | Vishay Dale 24,9kΩ | R_0603_1608Metric | R38, R47 |
| 2 | Vishay Dale 4,7Ω | R_0603_1608Metric | R39, R43 |
| 1 | Vishay Dale 499Ω | R_0603_1608Metric | R42 |
| 1 | Vishay Dale 2,49kΩ | R_0603_1608Metric | R44 |
| 1 | Vishay Dale 100mΩ/0,5W | R_1206_3216Metric | R45 |
| 2 | Vishay Dale 2kΩ | R_0603_1608Metric | R46, R48 |
| 2 | Vishay Dale 2kΩ/0.25W | R_0805_2012Metric | R50, R51 |
| 1 | Vishay Dale 2,61kΩ | R_0603_1608Metric | R54 |
| 1 | Vishay Dale 56,2kΩ | R_0603_1608Metric | R56 |
| 1 | Vishay Dale 33,2kΩ | R_0603_1608Metric | R58 |
| 7 | Vishay Dale 4,7kΩ | R_0603_1608Metric | R63, R64, R65, R66, R67, R68, R69 |
| 1 | Panasonic Electronic Components 3,3Ω/4x0603 | R_Array_Concave_4x0603 | RN1 |
Mpair design files
The KiCad project lives in the marpi82/mpair repository on GitHub; these links point at the commit this page was built from.
- Layouthardware/KiCAD/mpair.kicad_pcb
- Schematichardware/KiCAD/mpair.kicad_sch
Mpair: common questions
What microcontroller does the Mpair use?
The Mpair is built around the Espressif Systems, from the ESP32 family.
How big is the Mpair PCB?
The Mpair measures 100 × 102 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Mpair?
193 components, from 89 distinct parts. The full bill of materials is listed on this page.
Where can I download the Mpair design files?
From the marpi82/mpair repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Mpair design in my own project?
The repository has no license, so all rights stay with marpi82. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Mpair 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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