2 layers80 × 60 mm
2 layers80 × 145 mm
Mainboard2
midarubiccube/mainboard2- Size
- 80 × 145 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 178
- Nets
- 245
- Pads
- 793
- Tracks, vias
- 1,281, 570
- Pours
- 39
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 5 Aug 2024
- Updated
- 24 Sep 2024
Overview
Mainboard2 is an open-source printed circuit board by midarubiccube, from the midarubiccube/mainboard2 repository on GitHub. It is a 2-layer board of 80 × 145 mm with 178 parts on 245 nets, routed with 1,281 tracks and 570 vias.
It is built around the ESP32-S3-WROOM-1-N8, DRV8873HPWPRQ1 and PCA9685PW, with the ACS711ELCTR-25AB-T, MCP3208-BI/P and TLP785F among its other parts. Its parts include 63 resistors, 48 capacitors, 21 connectors, 19 ICs and 11 transistors. It belongs with the ESP32 boards of this library.
Main components
12
ESP32-S3-WROOM-1-N8
SMD,25.5x18mm-40℃~+85℃ -98.2dBm 2.4GHz 20.5dBm 355mA 3V~3.6V 95mA Bluetooth5.0 ESP32-S3 Chip On-board PCB Antenna UART、SPI、I2C、I2S、USB SMD,25.5x18mm WiFi Modules ROHSEspressif SystemsWiFi Modules
DRV8873HPWPRQ1
HTSSOP-24-EP-40℃~+125℃ 1 10A 10uA 150mΩ SPI Yes HTSSOP-24-EP Brushed DC Motor Drivers ROHSTexas InstrumentsStepper Motor Driver
PCA9685PW
TSSOP-28-40℃~+85℃ 100kHz~1MHz 16 2.3V~5.5V 25mA 5.5V Built-in PWM TSSOP-28 LED Drivers ROHSNXP SemiconductorsLED Drivers
ACS711ELCTR-25AB-T
SOIC-8-40℃~+85℃ 1.2mΩ 100kHz 25A 3.5us 3V~5.5V 55mV/A Support SOIC-8 Current Sensors ROHSAllegro MicroSystems, LLCCurrent Sensors
MCP3208-BI/P
PDIP-16-40℃~+85℃ 0.5LSB 100kHz 12 1LSB 1MHz、2MHz 2.7V~5.5V 500nA 8 External External Multiplexers、Bipolar input Not supported SAR SPI Yes PDIP-16 Analog to Digital Converters (ADC) ROHSMicrochip TechnologyAnalog To Digital Converters (ADC)
TLP785F
DIP-4DIP-4 Transistor, Photovoltaic Output Optoisolators ROHSToshibaTransistor, Photovoltaic Output Optoisolators
AZ1117CH-3.3TRG1
SOT-223-20℃~+125℃@(Tj) 0.003%Vout 1 1.2V@(800mA) 1.35A 10V 3.3V 4mA 70dB@(120Hz) Fixed Over Current Protection、Over Temperature Protection Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSDiodes IncorporatedVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
MCP251863-E/SS
SSOP-28-208mil-40℃~+150℃ 2.7V~5.5V 20mA 5Mbps CAN FD Controller SPI SSOP-28-208mil CAN Controllers ROHSMicrochip TechnologyCAN Controllers
NJM78L12SU3-TE1
SOT-89-3-40℃~+125℃@(Ta) 1 1.7V@(100mA) 100mA 12V 160uVrms 2.1mA 35V 62dB@(120Hz) Fixed Over Current Protection、Thermal Shutdown Positive SOT-89-3 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSNisshinbo Micro Devices Inc.Voltage Regulators - Linear, Low Drop Out (LDO) Regulators
TC74HC08APF
DIP-14-40℃~+85℃ 1.5V~4.2V 1uA 2V~6V 4 5.2mA 5.2mA 500mV~1.8V 74HC Series AND Gate DIP-14 Logic Gates ROHSToshibaLogic Gates
IRFML8244TRPBF
SOT-231 N-channel 1.25W 110pF 2.35V 25V 41mΩ@4.5V 430pF 49pF 5.4nC@10V 5.8A N-Channel SOT-23 MOSFETs ROHSInfineon TechnologiesMOSFETs
TPH4R10ANL,L1Q
SOP-81 N-channel 1.5V 100V 29pF 3.3mΩ@10V 4.85nF 67W 70A 75nC@10V SOP-8 MOSFETs ROHSToshibaMOSFETs
Parts
178| Qty | Value | Footprint | References |
|---|---|---|---|
| 18 | 0.1μF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C11, C12, C16, C17, C21, C22, C25, C28, C31, C32, C34, C38, C41, C42, C43, C44 +2 |
| 13 | R | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R2, R3, R25, R26, R27, R28, R29, R30, R31, R35, R39, R40, R41 |
| 12 | 1μF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C13, C15, C18, C20, C23, C26, C27, C30, C33, C36, C37, C40 |
| 9 | 10kΩ | Resistor_SMD:R_0603_1608Metric | R46, R47, R49, R50, R52, R56, R59, R61, R62 |
| 9 | IRFML8244TRPBF | Package_TO_SOT_SMD:SOT-23-3 | Q3, Q4, Q5, Q6, Q7, Q8, Q9, Q10, Q11 |
| 8 | Conn_01x03_Socket | Connector_JST:JST_XH_B3B-XH-A_1x03_P2.50mm_Vertical | J9, J10, J14, J15, J16, J17, J18, J19 |
| 7 | Conn_01x02_Socket | Connector_AMASS:AMASS_XT30PW-M_1x02_P2.50mm_Horizontal | J3, J4, J5, J6, J7, J8, J11 |
| 6 | 1.5KΩ | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | R9, R10, R15, R16, R21, R22 |
| 6 | 1.5kΩ | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | R8, R11, R14, R17, R19, R24 |
| 6 | 10KΩ | Diode_SMD:D_0603_1608Metric_Pad1.05x0.95mm_HandSolder | R7, R12, R13, R18, R20, R23 |
| 6 | 10kΩ | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R32, R33, R34, R37, R38, R42 |
| 6 | 47nF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C14, C19, C24, C29, C35, C39 |
| 6 | DRV8873HPWPRQ1 | Library:SOP65P640X120-25N | IC5, IC6, IC7, IC8, IC9, IC10 |
| 5 | 10Ω | Resistor_SMD:R_0603_1608Metric | R48, R53, R54, R55, R58 |
| 4 | 47u | Capacitor_SMD:C_1210_3225Metric_Pad1.33x2.70mm_HandSolder | C2, C3, C4, C5 |
| 4 | MountingHole_Pad | MountingHole:MountingHole_3.2mm_M3_DIN965_Pad | H1, H2, H3, H4 |
| 3 | MountingHole_2.7mm_M2.5 | MountingHole:MountingHole_2.7mm_M2.5 | MH1, MH2, MH3 |
| 2 | 100kΩ | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R4, R5 |
| 2 | 10µF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C45, C46 |
| 2 | 200Ω | Resistor_SMD:R_0603_1608Metric | R45, R51 |
| 2 | 330Ω | Resistor_SMD:R_0603_1608Metric | R57, R60 |
| 2 | 47u | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C6, C7 |
| 2 | 5.1k | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | R43, R44 |
| 2 | C | Capacitor_SMD:CP_Elec_10x10.5 | C1, C10 |
| 2 | PCA9685PW | Package_SO:TSSOP-28_4.4x9.7mm_P0.65mm | U5, U7 |
| 2 | SW_Push_Dual_x2 | Button_Switch_SMD:SW_Push_1P1T_NO_CK_KMR2 | SW1, SW2 |
| 2 | TLP785 | Package_DIP:DIP-4_W7.62mm | U1, U2 |
| 2 | TPH4R10ANL | Library:SOP_ADVANCE | Q1, Q2 |
| 1 | 0.01μF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C9 |
| 1 | 100nF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C48 |
| 1 | 120Ω | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R36 |
| 1 | 1kΩ | Resistor_SMD:R_0603_1608Metric | R1 |
| 1 | 20kΩ | Resistor_SMD:R_0805_2012Metric | R6 |
| 1 | 3362P-1-103LF | Library:3362P_1 | VR1 |
| 1 | 510Ω 1W | Resistor_SMD:R_2512_6332Metric | R63 |
| 1 | ACS711ELCTR-25AB-T | Library:ACS711ELCTR-25AB-T | IC4 |
| 1 | AP7375-50SA-7 | Library:SOT96P240X110-3N | IC2 |
| 1 | AZ1117CH-3.3TRG1 | Library:SOT230P700X180-4N | IC11 |
| 1 | BP5293-50 | Library:TO254P570X1700X1780-3P | PS2 |
| 1 | CDRH127_LDNP-560MC | Library:INDPM7066X300N | L1 |
| 1 | CSX-750P | Library:CSX-750P | X1 |
| 1 | Conn_01x02_Socket | Connector_AMASS:AMASS_XT60PW-M_1x02_P7.20mm_Horizontal | J2 |
| 1 | Conn_01x02_Socket | Connector_JST:JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J13 |
| 1 | Conn_01x02_Socket | Connector_JST:JST_XH_S2B-XH-A-1_1x02_P2.50mm_Horizontal | J1 |
| 1 | Conn_01x04_Socket | Connector_JST:JST_XH_S4B-XH-A_1x04_P2.50mm_Horizontal | J20 |
| 1 | ESP32-S3-WROOM-1 | PCM_Espressif:ESP32-S3-WROOM-1 | U8 |
| 1 | GPIO | Connector_PinSocket_2.54mm:PinSocket_2x20_P2.54mm_Vertical | J12 |
| 1 | MAU108 | Library:MAU118 | PS1 |
| 1 | MCP251863 | Package_SO:SSOP-28_5.3x10.2mm_P0.65mm | U6 |
| 1 | MCP3208 | Library:SOIC127P600X175-16N | U4 |
| 1 | NJM78L12SU3-TE1 | Package_TO_SOT_SMD:SOT-89-3 | IC1 |
| 1 | NSSM065T | Library:NSSM065T | LED1 |
| 1 | SBR15U100CTL-13 | Package_TO_SOT_SMD:TO-252-2 | D1 |
| 1 | TC74HC08APF | Package_DIP:DIP-14_W10.16mm | IC3 |
| 1 | USB_C_Receptacle_USB2.0 | Connector_USB:USB_C_Receptacle_HRO_TYPE-C-31-M-12 | J21 |
| 1 | ~ | Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.95x4.9mm_Mask2.71x3.4mm | U3 |
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Questions
How big is the Mainboard2 PCB?
It measures 80 × 145 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Mainboard2 use?
178 parts, built around the ESP32-S3-WROOM-1-N8, DRV8873HPWPRQ1, PCA9685PW and ACS711ELCTR-25AB-T. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Mainboard2 KiCad files?
From the midarubiccube/mainboard2 repository on GitHub, at the commit this page was made from: the board is mainboard2.kicad_pcb and its schematic DCDC.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Mainboard2 design in my own project?
Its repository states no licence, so its author keeps all rights: ask midarubiccube before reusing the design.