

Roamer
- Size
- 39 × 99 mm
- Copper layers
- 4
- Thickness
- 1.65 mm
- Parts
- 105
- Nets
- 129
- Pads
- 384
- Tracks, vias
- 829, 192
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 14 Oct 2024
- Updated
- 24 Nov 2024
Overview
Roamer is an open-source printed circuit board by ezzatisawesome, from the ezzatisawesome/roamer repository on GitHub. It is a 4-layer board of 39 × 99 mm with 105 parts on 129 nets, routed with 829 tracks and 192 vias.
It is built around the ATSAMD51J19A-AU, AP3602AKTR-G1 and BME688, with the MEM2075-00-140-01-A, AP2112K-3.3 and RFM95W-915S2 among its other parts. Its parts include 46 resistors, 19 capacitors, 8 ICs, 6 connectors and 4 diodes. It belongs with the SAM D and SAM boards of this library.
Main components
9ATSAMD51J19A-AU
TQFP-64-40℃~+85℃ 1.71V~3.63V 120MHz 12bit 12bit 192KB 32 Bit 51 512KB ARM Cortex-M4F Built-in FLASH TQFP-64(10x10) Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)AP3602AKTR-G1
SOT-23-6-40℃~+85℃ 1 1.2MHz 100mA 2.7V~5V 4.8V~5.2V Boost DC-DC Over-Temperature Protection (OTP) SOT-23-6 LED Drivers ROHSDiodes IncorporatedLED DriversBME688
SMD-8P-40℃~+85℃ 0%RH~100%RH 1.71V~3.6V 2.1uA I2C、SPI ±0.5℃ ±3%RH SMD-8P Temperature and Humidity Sensor ROHSBosch SensortecTemperature And Humidity SensorMEM2075-00-140-01-A
SMD1.4mm MicroSD Card (TF Card) Push-Push SMD SD Card / Memory Card Connector ROHSGlobal Connector Technology (GCT)SD Card / Memory Card ConnectorAP2112K-3.3
SOT253.3V 600mA CMOS Low Dropout Linear Regulator with EnableDiodes IncorporatedUncategorisedRFM95W-915S2
LCC-16_16X16mmLCC-16_16X16mm New Arrivals ROHSHopeRF Micro-electronicsUncategorisedRFM96W-433S2
LCC-16_16X16mmLCC-16_16X16mm New Arrivals ROHSHOPE MICROELECTRONICSUncategorisedDMP2070UQ-7
SOT-23-55℃~+150℃ 1 P-Channel 118pF 11pF 17.8nC 20V 4.6A 44mΩ@4.5V 830mW 950mV SOT-23 MOSFETs ROHSDiodes IncorporatedMOSFETsMBR120
SOD-123Schottky DiodesDoeshare
Parts
105| Qty | Value | Footprint | References |
|---|---|---|---|
| 27 | 0 | Resistor_SMD:R_0603_1608Metric | R10, R11, R12, R13, R14, R15, R16, R17, R18, R19, R21, R22, R24, R25, R26, R27 +11 |
| 15 | 10K | Resistor_SMD:R_0603_1608Metric | R1, R3, R4, R5, R6, R8, R20, R23, R30, R31, R32, R34, R36, R40, R44 |
| 9 | 10uF | Inductor_SMD:L_0805_2012Metric | C1, C3, C5, C6, C8, C9, C13, C16, C17 |
| 8 | 1uF | Capacitor_SMD:C_0603_1608Metric | C7, C10, C11, C12, C14, C15, C18, C19 |
| 5 | MountingHole | MountingHole:MountingHole_2.2mm_M2_DIN965_Pad | H1, H2, H3, H4, H5 |
| 2 | 1N4148 | Diode_SMD:D_SOD-323F | D2, D3 |
| 2 | 22pF | Capacitor_SMD:C_0603_1608Metric | C2, C4 |
| 2 | Conn_02x05_Odd_Even | Connector_PinHeader_1.27mm:PinHeader_2x05_P1.27mm_Vertical_SMD | J3, J5 |
| 2 | Conn_Coaxial_Small | Connector_Coaxial:U.FL_Molex_MCRF_73412-0110_Vertical | J1, J4 |
| 2 | SolderJumper_2_Open | Jumper:SolderJumper-2_P1.3mm_Open_TrianglePad1.0x1.5mm | AREF <> 3V3, IN- <> BATT+ |
| 1 | 100K | Resistor_SMD:R_Array_Convex_4x1206 | R9 |
| 1 | 100K | Resistor_SMD:R_0805_2012Metric | R38 |
| 1 | 10uH | Inductor_SMD:L_1008_2520Metric | L2 |
| 1 | 1K | Capacitor_SMD:C_0603_1608Metric | R2 |
| 1 | 2.2K | Resistor_SMD:R_0603_1608Metric | R7 |
| 1 | 2MB Flash | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U1 |
| 1 | 32.768 kHz | Crystal:Crystal_SMD_3215-2Pin_3.2x1.5mm | X2 |
| 1 | 3V3 Testpoint | TestPoint:TestPoint_Loop_D2.50mm_Drill1.0mm | +3V3 |
| 1 | AP2112K-3.3 | Package_TO_SOT_SMD:SOT-23-5 | U2 |
| 1 | AP3602AKTR-G1 | footprints:SOT-23-6_DIO | U6 |
| 1 | ATSAMD51J19A-A | Package_QFP:TQFP-64_10x10mm_P0.5mm | MCU1 |
| 1 | BME688 | Package_LGA:Bosch_LGA-8_3x3mm_P0.8mm_ClockwisePinNumbering | U7 |
| 1 | Batt Testpoint | TestPoint:TestPoint_Loop_D2.50mm_Drill1.0mm | +BATT |
| 1 | D+ Testpoint | TestPoint:TestPoint_Pad_D1.0mm | TP3 |
| 1 | D- TestPoint | TestPoint:TestPoint_Pad_D1.0mm | TP4 |
| 1 | DMP2070UQ-7 | Package_TO_SOT_SMD:TSOT-23 | Q3 |
| 1 | GND Testpoint | TestPoint:TestPoint_Loop_D2.50mm_Drill1.0mm | GND |
| 1 | INA260 | Package_SO:TSSOP-16_4.4x5mm_P0.65mm | U8 |
| 1 | JSTPH | Connector_JST:JST_PH_S2B-PH-SM4-TB_1x02-1MP_P2.00mm_Horizontal | J2 |
| 1 | KMR2 | Button_Switch_SMD:SW_Push_1P1T_NO_CK_KMR2 | SW1 |
| 1 | LOGO | LOGO | G*** |
| 1 | MBR120 | Diode_SMD:D_SOD-123 | D4 |
| 1 | MCP73831-2-OT | Package_TO_SOT_SMD:SOT-23-5 | U3 |
| 1 | MEM2075-00-140-01-A | footprints:GCT_MEM2075-00-140-01-A | J8 |
| 1 | ORANGE | LED_SMD:LED_0805_2012Metric | CHG1 |
| 1 | RED | LED_SMD:LED_0805_2012Metric | L1 |
| 1 | RFM95W-915S2 | RF_Module:HOPERF_RFM9XW_SMD | U4 |
| 1 | RFM96W-433S2 | RF_Module:HOPERF_RFM9XW_SMD | U9 |
| 1 | VBUS Testpoint | TestPoint:TestPoint_Loop_D2.50mm_Drill1.0mm | +VBUS |
| 1 | WS2812B3535 | LED_SMD:LED_SK6812MINI_PLCC4_3.5x3.5mm_P1.75mm | D1 |
| 1 | microUSB 2.0 B | Connector_USB:USB_Micro-B_Amphenol_10118194_Horizontal | X3 |
Questions
How big is the Roamer PCB?
It measures 39 × 99 mm and has 4 copper layers, 1.65 mm thick.
What parts does the Roamer use?
105 parts, built around the ATSAMD51J19A-AU, AP3602AKTR-G1, BME688 and MEM2075-00-140-01-A. 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 Roamer KiCad files?
From the ezzatisawesome/roamer repository on GitHub, at the commit this page was made from: the board is roamer.kicad_pcb and its schematic bus-i2c.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Roamer design in my own project?
Its repository states no licence, so its author keeps all rights: ask ezzatisawesome before reusing the design.
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