4 layers90 × 66.3 mm
Lighthouse base
mwuerms/lighthouse_hardware
+ lighthouse + buoy: hand sender, ble advertising
75 partsMIT
4 layers18 × 50 mm
Ultimate mischung
Bestsage/Ultimate_mischung- Size
- 18 × 50 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 62
- Nets
- 77
- Pads
- 345
- Tracks, vias
- 640, 71
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 1 Jun 2026
- Updated
- 1 Jun 2026
Overview
Ultimate mischung is an open-source printed circuit board by Bestsage, from the Bestsage/Ultimate_mischung repository on GitHub. It is a 4-layer board of 18 × 50 mm with 62 parts on 77 nets, routed with 640 tracks and 71 vias.
It is built around the RP2354A, SAM-M10Q-00B and TPS62823DLC, with the W25Q128JVSIQ, BMP585 and AMS1117-5.0 among its other parts. Its parts include 26 capacitors, 14 resistors, 7 connectors, 6 ICs and 2 diodes. It belongs with the RP2350 boards of this library.
Main components
12
RP2354A
QFN-60(7x7)150MHz 32 Bit ARM Cortex-M33 Built-in+External Power-on reset (POR)、Undervoltage detection (BOR/LVD/LVR/LVI)、Watchdog reset、Built-in general-purpose timer、Integrated LDO、Calendar function、True random number generator (TRNG)、Hardware ECC check、Independent watchdog (IWDG) QFN-60(7x7) Microcontrollers (MCU/MPU/SOC) ROHSRaspberry PiMicrocontrollers (MCU/MPU/SOC)
SAM-M10Q-00B
LGA-20Hot start acceleration LGA-20 GNSS Modules ROHSu-bloxGNSS Modules
TPS62823DLC
SON85.5V, 3A Step-Down Converter Family with 1% AccuracyTexas InstrumentsUncategorised
W25Q128JVSIQ
SOIC-8-208mil-40℃~+85℃ 100,000 cycles 120ms@(32KB) 128Mbit 133MHz 1uA 2.7V~3.6V 20 Years 3ms Power-on reset、Hardware write protection、Software write protection、Write enable latch、Absolute write protection SPI SOIC-8-208mil NOR FLASH ROHSWinbondNOR FLASH
BMP585
LGA-9(3.3x3.3)-40℃~+85℃ 0.5pa/K 1.5uA 1.71V~3.6V 30Kpa~1.25bar 30pa 6pa I2C、SPI On-chip temperature compensation、Integrated ADC and digital interface、Standby mode、On-chip temperature output Yes LGA-9(3.3x3.3) Pressure Sensors ROHSBosch SensortecPressure Sensors
AMS1117-5.0
SOT-223-40℃~+125℃ 1 1.3V 15V 1A 5V 60dB Fixed Positive Short Circuit Protection、Thermal shutdown SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSAdvanced Monolithic SystemsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
BMI270
LGA-14(2.5x3)-40℃~+85℃ 1.71V~3.6V 16bit 2KB 3.5uA Accelerometer Gyroscope SPI、I2C X,Y,Z X,Y,Z ±16g ±2000dps LGA-14(2.5x3) Accelerometers ROHSBosch SensortecAccelerometers
IRLML6244
SOT-23-55℃~+150℃ 1 N-channel 1.1V 1.3W 20V 21mΩ@4.5V 6.3A 700pF 8.9nC@4.5V 98pF SOT-23 MOSFETs ROHSGuangdong HottechMOSFETs
ABM10-166-12.000MHZ-T3
SMD2520-4P-20℃~+70℃ 125Ω 12MHz 8pF ±10ppm ±10ppm SMD2520-4P Crystals ROHSAbraconCrystals
PMEG4002EJ
SOD-323F1 Independent 10uA@40V 2.75A 200mA 40V 600mV@200mA SOD-323F Schottky Diodes ROHSNexperiaSchottky Diodes
USB4105-GF-A
SMD-40℃~+85℃ 1 12P 48V 5A Black Female Surface Mount, Right Angle Type-C USB 2.0 SMD USB Connectors ROHSGlobal Connector Technology (GCT)USB Connectors
WS2812B-2020
SMD,2.2x2mm0.6mA 0.84mm 120us 160mcd 200mcd 2kHz 2mm 2mm 300ns 470.4nm 515.6nm 520mcd 5V 622.5nm 800Kbit/s Built-in power-on reset circuit、Built-in power-on reset circuit、Integrated intelligent reverse connection protection function Top-mount SMD,2.2x2mm RGB LEDs(Built-in IC) ROHSWorldsemiRGB LEDs(Built-In IC)
Parts
62| Qty | Value | Footprint | References |
|---|---|---|---|
| 16 | 100nf | Capacitor_SMD:C_01005_0402Metric | C4, C5, C6, C7, C8, C9, C10, C11, C12, C13, C14, C15, C16, C18, C19, C22 |
| 6 | 10uf | Capacitor_SMD:C_0402_1005Metric | C1, C2, C3, C17, C20, C21 |
| 5 | 10k | Resistor_SMD:R_0201_0603Metric | R2, R3, R4, R5, R7 |
| 4 | Conn_01x02 | Connector_JST:JST_SH_BM02B-SRSS-TB_1x02-1MP_P1.00mm_Vertical | J3, J4, J5, J7 |
| 2 | 100K | Resistor_SMD:R_0201_0603Metric | R12, R14 |
| 2 | 10R | Resistor_SMD:R_0201_0603Metric | R8, R10 |
| 2 | 15pf | Capacitor_SMD:C_0201_0603Metric | C23, C24 |
| 2 | 1R | Resistor_SMD:R_0201_0603Metric | R9, R11 |
| 2 | 1uH | Inductor_SMD:L_0402_1005Metric | L1, L2 |
| 2 | 5.1k | Resistor_SMD:R_0201_0603Metric | R1, R6 |
| 2 | Conn_01x04 | Connector_JST:JST_SH_BM04B-SRSS-TB_1x04-1MP_P1.00mm_Vertical | J1, J6 |
| 2 | IRLML6244 | Package_TO_SOT_SMD:SOT-23 | Q1, Q2 |
| 1 | 1uf | Capacitor_SMD:C_0201_0603Metric | C25 |
| 1 | 22uf | Capacitor_SMD:C_0402_1005Metric | C26 |
| 1 | 470K | Resistor_SMD:R_0201_0603Metric | R13 |
| 1 | ABM10-166-12.000MHZ-T3 | Crystal:Crystal_SMD_Abracon_ABM10-4Pin_2.5x2.0mm | Y1 |
| 1 | AMS1117-5.0 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U5 |
| 1 | BMI270 | Library:XDCR_BMI270 | U2 |
| 1 | BMP585 | Library:XDCR_BMP585 | A1 |
| 1 | LOGO | LOGO | G*** |
| 1 | PMEG4002EJ | Diode_SMD:D_SOD-523 | D1 |
| 1 | RP2354A | Package_DFN_QFN:QFN-60-1EP_7x7mm_P0.4mm_EP3.4x3.4mm | U1 |
| 1 | SAM-M10Q-00B | Library:SAM-M10Q_UBL | U4 |
| 1 | TPS62823DLC | Package_SON:Texas_VSON-HR-8_1.5x2mm_P0.5mm | U6 |
| 1 | USB4105-GF-A | Library:GCT_USB4105-GF-A | J2 |
| 1 | W25Q128JVS | Package_SO:SOIC-8_5.3x5.3mm_P1.27mm | U3 |
| 1 | WS2812B-2020 | LED_SMD:LED_WS2812B-2020_PLCC4_2.0x2.0mm | D2 |
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Questions
How big is the Ultimate mischung PCB?
It measures 18 × 50 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Ultimate mischung use?
62 parts, built around the RP2354A, SAM-M10Q-00B, TPS62823DLC and W25Q128JVSIQ. 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 Ultimate mischung KiCad files?
From the Bestsage/Ultimate_mischung repository on GitHub, at the commit this page was made from: the board is Ultimate_mischung.kicad_pcb and its schematic Ultimate_mischung.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Ultimate mischung design in my own project?
Its repository states no licence, so its author keeps all rights: ask Bestsage before reusing the design.