4 layers85.3 × 54.5 mm
CentralUnit
albertdolata/Sensitive-Parameter-Recorder
This repository is intended for an academic project.
70 parts2
2 layers60.8 × 36 mm
SecCentralUnit
albertdolata/Sensitive-Parameter-Recorder2This repository is intended for an academic project.
- Size
- 60.8 × 36 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 22
- Nets
- 66
- Pads
- 128
- Tracks, vias
- 138, 36
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 2 Apr 2026
- Updated
- 4 Sep 2026
Overview
SecCentralUnit is an open-source printed circuit board by albertdolata, from the albertdolata/Sensitive-Parameter-Recorder repository on GitHub. It is a 2-layer board of 60.8 × 36 mm with 22 parts on 66 nets, routed with 138 tracks and 36 vias.
It is built around the MDBT50Q-P1MV2, LIS3DH and CR2450. Its parts include 7 capacitors, 5 resistors, 3 ICs, 3 connectors and 1 crystal. It belongs with the nRF52 and nRF5x boards of this library.
Main components
3
MDBT50Q-P1MV2
SMD-61PEncryption function、Mesh networking SMD-61P Bluetooth Modules ROHSRAYTACBluetooth Modules
LIS3DH
LGA-16(3x3)-40℃~+85℃ 1.71V~3.6V 16bit 500nA Accelerometer Motion event detection SPI、I2C X,Y,Z ±16g LGA-16(3x3) Accelerometers ROHSSTMicroelectronicsAccelerometersCR2450
-- Unclassified goods ROHSMaxellUncategorised
Parts
22| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | 10k | Resistor_SMD:R_0402_1005Metric | R1, R2, R3 |
| 2 | 100n | Capacitor_SMD:C_0402_1005Metric | C3, C6 |
| 2 | 10u | Capacitor_SMD:C_0402_1005Metric | C1, C2 |
| 2 | 12p | Capacitor_SMD:C_0402_1005Metric | C4, C5 |
| 2 | 2k2 | Resistor_SMD:R_0402_1005Metric | R4, R5 |
| 2 | CR2450 | Battery:BatteryHolder_ComfortableElectronic_CH273-2450_1x2450 | BT1, BT2 |
| 1 | 220n | Capacitor_SMD:C_0402_1005Metric | C7 |
| 1 | 32.768kHz | Crystal:Crystal_SMD_3215-2Pin_3.2x1.5mm | Y1 |
| 1 | HIH8130 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U3 |
| 1 | I2C | Jumper:SolderJumper-2_P1.3mm_Open_TrianglePad1.0x1.5mm | JP1 |
| 1 | I2C_USR | Connector_PinHeader_1.00mm:PinHeader_1x04_P1.00mm_Vertical_SMD_Pin1Right | J3 |
| 1 | LIS3DH | Package_LGA:LGA-16_3x3mm_P0.5mm_LayoutBorder3x5y | U1 |
| 1 | MDBT50Q-P1MV2 | RF_Module:Raytac_MDBT50Q | U2 |
| 1 | REED_SW | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J2 |
| 1 | SWD | Connector_PinHeader_1.00mm:PinHeader_1x05_P1.00mm_Vertical_SMD_Pin1Right | J1 |
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Questions
How big is the SecCentralUnit PCB?
It measures 60.8 × 36 mm and has 2 copper layers, 1.6 mm thick.
What parts does the SecCentralUnit use?
22 parts, built around the MDBT50Q-P1MV2, LIS3DH and CR2450. 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 SecCentralUnit KiCad files?
From the albertdolata/Sensitive-Parameter-Recorder repository on GitHub, at the commit this page was made from: the board is PCB/SecCentralUnit/SecCentralUnit.kicad_pcb and its schematic PCB/CentralUnit/CentralUnit.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the SecCentralUnit design in my own project?
Its repository states no licence, so its author keeps all rights: ask albertdolata before reusing the design.