4 layers49.7 × 14.5 mm
Window sensor
usimd/window-sensor
BLE window sensor — nRF54L10 + BTHome v2 for Home Assistant
26 parts1
2 layers70 × 70 mm
Digital level
fearedspark/digital-level- Size
- 70 × 70 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 43
- Nets
- 33
- Pads
- 134
- Tracks, vias
- 233, 68
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 14 Nov 2024
- Updated
- 16 May 2025
Overview
Digital level is an open-source printed circuit board by fearedspark, from the fearedspark/digital-level repository on GitHub. It is a 2-layer board of 70 × 70 mm with 43 parts on 33 nets, routed with 233 tracks and 68 vias.
It is built around the LIS2DTW12TR-MS, MAX16150AWT+ and SKRKAHE020, with the AYF531035 among its other parts. Its parts include 13 capacitors, 8 resistors, 4 ICs, 2 connectors and 2 switches. It belongs with the STM32 boards of this library.
Main components
4
LIS2DTW12TR-MS
LGA-12(2x2)-40℃~+85℃ 1.71V~3.6V 12bit 2uA Accelerometer SPI、I2C X,Y,Z ±16g LGA-12(2x2) Accelerometers ROHSMSKSEMIAccelerometers
MAX16150AWT+
BGA-6(0.8x1.2)-40℃~+125℃@(Tj) 1 1.3V~5.5V 32ms Active High、Active Low Open-drain、Push-pull BGA-6(0.8x1.2) Supervisor and Reset ICs ROHSMaxim Integrated (Analog Devices)Supervisor And Reset ICs
SKRKAHE020
SMD,3.9x2.9mm-40℃~+85℃ 12V 1N 2.9mm 200,000 Cycles 2mm 3.9mm 50mA Round Button SMD(SMT) Tab SPST-NO Surface Mount,Vertical SMD,3.9x2.9mm Tactile Switches ROHSALPSALPINETactile Switches
AYF531035
SMD,P=0.5mm,卧贴-55℃~+85℃ 0.3mm 0.5mm 10P 1mm Bottom Contact Copper alloy Gold Hinged Lid Surface Mount, Right Angle SMD,P=0.5mm,卧贴 FFC, FPC (Flat Flexible) Connector Assemblies ROHSPanasonicFFC, FPC (Flat Flexible) Connector Assemblies
README
README.mdDigital Level
Parts
43| Qty | Value | Footprint | References |
|---|---|---|---|
| 11 | TestPoint | TestPoint:TestPoint_Pad_D1.0mm | TP1, TP2, TP3, TP4, TP5, TP6, TP7, TP8, TP9, TP10, TP11 |
| 5 | 100nF | Capacitor_SMD:C_0402_1005Metric | C1, C6, C9, C11, C12 |
| 5 | 1uF | Capacitor_SMD:C_0402_1005Metric | C2, C3, C4, C13, C14 |
| 4 | 100k | Resistor_SMD:R_0603_1608Metric | R5, R6, R7, R8 |
| 2 | 10k | Resistor_SMD:R_0603_1608Metric | R3, R4 |
| 2 | 10k | Resistor_SMD:R_0402_1005Metric | R1, R2 |
| 2 | 10uF | Capacitor_SMD:C_0402_1005Metric | C5, C10 |
| 2 | BLM15AX102SN1D | Inductor_SMD:L_0402_1005Metric | FB1, FB2 |
| 2 | SKRKAHE020 | Button_Switch_SMD:SW_Push_SPST_NO_Alps_SKRK | SW1, SW2 |
| 1 | 560pF | Capacitor_SMD:C_0402_1005Metric | C15 |
| 1 | AYF531035 | project_lib:LS013B7DH03 | J2 |
| 1 | Battery_Cell | Battery:BatteryHolder_Keystone_1058_1x2032 | BT1 |
| 1 | Conn_ARM_SWD_TagConnect_TC2030 | Connector:Tag-Connect_TC2030-IDC-FP_2x03_P1.27mm_Vertical | J1 |
| 1 | LIS2DTW12TR | Package_LGA:LGA-12_2x2mm_P0.5mm | U4 |
| 1 | MAX16150A | Package_TO_SOT_SMD:TSOT-23-6_HandSoldering | U1 |
| 1 | STM32C011F4Ux | Package_DFN_QFN:ST_UFQFPN-20_3x3mm_P0.5mm | U3 |
| 1 | TPS60243DGKT | Package_SO:VSSOP-8_3x3mm_P0.65mm | U2 |
Questions
How big is the Digital level PCB?
It measures 70 × 70 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Digital level use?
43 parts, built around the LIS2DTW12TR-MS, MAX16150AWT+, SKRKAHE020 and AYF531035. 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 Digital level KiCad files?
From the fearedspark/digital-level repository on GitHub, at the commit this page was made from: the board is Hardware/DigitalLevel.kicad_pcb and its schematic Hardware/DigitalLevel.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Digital level design in my own project?
Its repository states no licence, so its author keeps all rights: ask fearedspark before reusing the design.
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