4 layers125.1 × 118.6 mm
4 layers125.1 × 118.6 mm
Romi unified board advanced
WPIRoboticsEngineering/ZenDriver1- Size
- 125.1 × 118.6 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 95
- Nets
- 121
- Pads
- 432
- Tracks, vias
- 440, 109
- Pours
- 5
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 16 Sep 2020
- Updated
- 15 Oct 2021
Overview
Romi unified board advanced is an open-source printed circuit board by WPIRoboticsEngineering, from the WPIRoboticsEngineering/ZenDriver repository on GitHub. It is a 4-layer board of 125.1 × 118.6 mm with 95 parts on 121 nets, routed with 440 tracks and 109 vias.
It is built around the ATSAMD10D14A-MU, 74AHC244D and DRV8838DSG, with the MP4423HGQ-P, LSM6DS3 and SPX3819M5-L among its other parts. Its parts include 29 resistors, 21 capacitors, 17 connectors, 11 ICs and 6 diodes. It belongs with the SAM D and SAM boards of this library.
Main components
9
ATSAMD10D14A-MU
QFN-24-EP(4x4)-40℃~+85℃ 1.62V~3.63V 10bit 12bit 16KB 22 32 Bit 48MHz 4KB ARM Cortex-M0+ Built-in FLASH 上电复位(POR)、欠压检测(BOR/LVD/LVR/LVI)、内置通用定时器、硬件CRC、可编程看门狗、日历功能、触控功能 QFN-24-EP(4x4) Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)
74AHC244D
SO-20-300mil-40℃~+125℃ 10.5ns@5V,50pF 2V~5.5V 74AHC 8 80uA 8mA 8mA Schmitt trigger Tri-State SO-20-300mil Buffers, Drivers, Receivers, Transceivers ROHSNexperiaBuffer/Driver/Transceiver
DRV8838DSG
WSON-8-EP(2x2)-40℃~+85℃ 1.8A 1.8A 1.8V~7V 280mΩ 5nA Current sensing/regulation function、Active braking function Yes WSON-8-EP(2x2) Brushed DC Motor Drivers ROHSTexas InstrumentsMotor Driver ICsMP4423HGQ-P
QFN-8(3x3)-40℃~+125℃@(TJ) 1 3A 410kHz 4V~36V 800mV~32.4V Adjustable Buck Built-in Overcurrent Protection、Operating status indication、Cycle-by-cycle current limiting、Frequency synchronization、Hiccup current limiting、Built-in LDO regulator Step-down type Yes QFN-8(3x3) DC-DC Converters ROHSMonolithic Power SystemsDC-DC Converters
LSM6DS3
LGA-14(2.5x3)-40℃~+85℃ 1.71V~3.6V 8KB Accelerometer Gyroscope SPI、I2C X,Y,Z X,Y,Z ±16g ±2000dps LGA-14(2.5x3) Accelerometers ROHSSTMicroelectronicsAccelerometers
SPX3819M5-L
SOT-23-5SOT-23-5 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSMaxLinearVoltage Regulators - Linear, Low Drop Out (LDO) RegulatorsSPX3819M5-L-3-3
SOT-23-5-40℃~+85℃@(Ta) 1 20V 3.3V 420mV@(100mA) 500mA 5uA 70dB@(1kHz) Fixed Over Current Protection、Over Temperature Protection、Enable Positive SOT-23-5 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTECH PUBLICVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
SIS415DNT
PowerPAK1212-8S-55℃~+150℃ 1 P-Channel 20V 3.7W 35A 400mV 5.46nF 55.5nC@10V 642pF PowerPAK1212-8S MOSFETs ROHSVishay IntertechnologyMOSFETs
PMEG4005EJ,115-JSM
SOD-323-55℃~+125℃ 1 Independent 10uA 22A 40V 500mA 510mV@500mA、620mV@1A SOD-323 Schottky Diodes ROHSJSMSEMISchottky Diodes
README
README.mdZenDriver
Parts
95| Qty | Value | Footprint | References |
|---|---|---|---|
| 16 | 100k | Resistor_SMD:R_0603_1608Metric | R7, R8, R8, R11, R12, R13, R14, R15, R16, R17, R18, R19, R24, R26, R27, R28 |
| 8 | 0.1u | Capacitor_SMD:C_0603_1608Metric | C4, C5, C6, C7, C8, C19, C21, C21 |
| 5 | 10k | Resistor_SMD:R_0603_1608Metric | R1, R9, R10, R20, R21 |
| 5 | 10u | Capacitor_SMD:C_0603_1608Metric | C2, C3, C10, C11, C12 |
| 4 | TestPoint | unified:batterylug | TP1, TP2, TP3, TP4 |
| 3 | 330 | Resistor_SMD:R_0603_1608Metric | R22, R23, R25 |
| 3 | LED | LED_SMD:LED_0603_1608Metric | D6, D7, D8 |
| 3 | THING | Connector_PinSocket_2.54mm:PinSocket_1x12_P2.54mm_Vertical | J5, J14, J15 |
| 2 | 10nf | Capacitor_SMD:C_0603_1608Metric | C16, C17 |
| 2 | 1u | Capacitor_SMD:C_0603_1608Metric | C9, C20 |
| 2 | 220u | Capacitor_SMD:CP_Elec_6.3x3.9 | C1, C15 |
| 2 | 4.7 | Capacitor_SMD:C_0603_1608Metric | C13, C14 |
| 2 | 74AHC244 | Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm | U5, U8 |
| 2 | DRV8838 | Package_SON:WSON-8-1EP_2x2mm_P0.5mm_EP0.9x1.6mm | U2, U3 |
| 2 | LineSensor | Connector_PinSocket_2.54mm:PinSocket_1x03_P2.54mm_Vertical | J3, J4 |
| 2 | MountingHole | MountingHole:MountingHole_2.2mm_M2_DIN965 | H1, H2 |
| 2 | ROMI-Encoder | Connector_PinSocket_2.54mm:PinSocket_1x06_P2.54mm_Vertical | J12, J13 |
| 2 | SiS415DNT | Package_SO:Vishay_PowerPAK_1212-8_Single | Q1, Q2 |
| 2 | TC7WB67CFK | US8:US8 | U7, U10 |
| 1 | 22.1 | Resistor_SMD:R_0603_1608Metric | R4 |
| 1 | 270k | Resistor_SMD:R_0603_1608Metric | R2 |
| 1 | 41.2k | Resistor_SMD:R_0603_1608Metric | R6 |
| 1 | 5.1u | Inductor_SMD:L_6.3x6.3_H3 | L1 |
| 1 | 51.1k | Resistor_SMD:R_0603_1608Metric | R3 |
| 1 | 7.68k | Resistor_SMD:R_0603_1608Metric | R5 |
| 1 | ATSAMD10D14A-M | Package_DFN_QFN:QFN-24-1EP_4x4mm_P0.5mm_EP2.6x2.6mm | U4 |
| 1 | Conn_01x02_Female | Connector_JST:JST_PH_B2B-PH-K_1x02_P2.00mm_Vertical | J17 |
| 1 | Conn_01x19_Female | Connector_PinSocket_2.54mm:PinSocket_1x19_P2.54mm_Vertical | J2 |
| 1 | Conn_02x19_Odd_Even | Connector_PinSocket_2.54mm:PinSocket_2x19_P2.54mm_Vertical | J6 |
| 1 | D | Diode_SMD:D_SOD-323F | D3 |
| 1 | D_Zener | Diode_SMD:D_SOD-323F | D1 |
| 1 | LIDAR_DATA | unified:JST_BM06B-GHS-TBT(LF)(SN)(N) | J10 |
| 1 | LIDAR_MOTOR | unified:JST_SM02B-PASS-TBT(LF)(SN) | J11 |
| 1 | LSM6DS3 | Package_LGA:LGA-14_3x2.5mm_P0.5mm_LayoutBorder3x4y | U9 |
| 1 | MP4423H | Package_DFN_QFN:DFN-8-1EP_3x3mm_P0.65mm_EP1.7x2.05mm | U1 |
| 1 | PMEG4005EJ,115 | Diode_SMD:D_SOD-323F | D2 |
| 1 | SPI | Connector_PinSocket_2.54mm:PinSocket_1x07_P2.54mm_Vertical | J8 |
| 1 | SPX3819M5-L | Package_TO_SOT_SMD:SOT-23-5 | U11 |
| 1 | SPX3819M5-L-3-3 | Package_TO_SOT_SMD:SOT-23-5 | U6 |
| 1 | SWD | Connector_PinSocket_2.54mm:PinSocket_1x04_P2.54mm_Vertical | J16 |
| 1 | SW_SPDT | unified:CSS-1210TB | SW2 |
| 1 | SW_SPST | unified:CSS-1210TB | SW1 |
| 1 | ServoAnalog | Connector_PinSocket_2.54mm:PinSocket_1x04_P2.54mm_Vertical | J1 |
| 1 | Ultrasonic. | Connector_PinSocket_2.54mm:PinSocket_1x04_P2.54mm_Vertical | J7 |
| 1 | i2c | Connector_PinSocket_2.54mm:PinSocket_1x04_P2.54mm_Vertical | J9 |
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Questions
How big is the Romi unified board advanced PCB?
It measures 125.1 × 118.6 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Romi unified board advanced use?
95 parts, built around the ATSAMD10D14A-MU, 74AHC244D, DRV8838DSG and MP4423HGQ-P. 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 Romi unified board advanced KiCad files?
From the WPIRoboticsEngineering/ZenDriver repository on GitHub, at the commit this page was made from: the board is Romi-unified-board-advanced.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Romi unified board advanced design in my own project?
Its repository states no licence, so its author keeps all rights: ask WPIRoboticsEngineering before reusing the design.