2 layers138.8 × 55 mm
MuxPi
SamsungSLAV/muxpi
MuxPi is an open hardware and open software board which was designed to aid in automating tasks on physical devices.
354 parts22Apache-2.0
4 layers60.9 × 48 mm
PCB CR2032
LHelge/BCD-watch1BCD-watch
- Size
- 60.9 × 48 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 76
- Nets
- 82
- Pads
- 235
- Tracks, vias
- 673, 96
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 7 Nov 2019
- Updated
- 8 Feb 2020
Overview
PCB CR2032 is an open-source printed circuit board by LHelge, from the LHelge/BCD-watch repository on GitHub, published under the MIT licence. It is a 4-layer board of 60.9 × 48 mm with 76 parts on 82 nets, routed with 673 tracks and 96 vias.
It is built around the LIS3DH, BAR43CFILM and CR2032. Its parts include 29 resistors, 12 capacitors, 3 diodes, 3 connectors and 2 ICs. It belongs with the STM32 boards of this library.
Main components
3
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 ROHSSTMicroelectronicsAccelerometers
BAR43CFILM
SOT-23-3L1 Pair Common Cathode 100mA 1V@100mA 30V 500nA@30V 750mA SOT-23-3L Schottky Diodes ROHSSTMicroelectronicsSchottky Diodes
CR2032
-- Unclassified goods ROHSMaxellUncategorised
README
HW/PCB_CR2032/README.mdPCB_CR2032
Design of watch PCB to be used with a CR2032 coin cell battery
Schematic
TODO: add this as images here
BoM
| Reference | Value | Make | Mouser part# | Part | Qty |
|---|---|---|---|---|---|
| BT1 | CR2032 | Linx | 712-BAT-HLD-001 | BAT-HLD-001 | 1 |
| C1, C2 | 20pF | Yageo | 603-CC805JRNPO9BN200 | CC0805JRNPO9BN200 | 2 |
| C4-C9, C14, C15 | 100nF | Yageo | 603-CC805KRX7R9BB104 | CC0805KRX7R9BB104 | 8 |
| C12 | 11mF | SII | 628-CPH3225A-2K | CPH3225A | 1 |
| C3, C11, C13 | 10uF | Yageo | 603-CC805KKX7R6BB106 | CC0805KKX7R6BB106 | 3 |
| D1-D3 | BAR43CFILM | ST | 511-BAR43CFILM | BAR43CFILM | 3 |
| H00-H03, H10-H13, M00-M03, M10-M13, S00-S03, S10-S13 | LED | Kingbright | 604-APTR3216SECKJ3 | APTR3216SECK/J3-PRV | 24 |
| J1 | STDC14 | Amphenol | 649-221121-00014T4LF | 20021121-00014T4LF | 1 |
| R1-R20, R23-R26 | 1k | Yageo | 603-RC0805FR-071KL | RC0805FR-071KL | 24 |
| R27-R31 | 10k | Yageo | 603-RC0805FR-0710KL | RC0805FR-0710KL | 5 |
| SW1 | WAKE | Wurth | 710-434331045822 | 434331045822 | 1 |
| U1 | STM32L071CBTx | ST | 511-STM32L071CBT6TR | STM32L071CBT6 | 1 |
| U3 | LIS2DW12 | ST | 511-LIS2DW12TR | LIS2DW12TR | 1 |
| Y1 | 32768 Hz | Epson Timing | 732-FC135-32.76KAA3 | FC-135 32.7680KA-A3 | 1 |
Parts
76| Qty | Value | Footprint | References |
|---|---|---|---|
| 24 | 1k | Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder | R1, R2, R10, R11, R12, R13, R14, R15, R16, R17, R18, R19, R20, R23, R24, R25 +8 |
| 24 | LED | LED_SMD:LED_1206_3216Metric | H00, H01, H02, H03, H10, H11, H12, H13, M00, M01, M02, M03, M10, M11, M12, M13 +8 |
| 7 | 100nF | Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder | C4, C5, C6, C7, C9, C14, C15 |
| 4 | 10k | Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder | R27, R28, R29, R31 |
| 3 | BAR43CFILM | Package_TO_SOT_SMD:SOT-23_Handsoldering | D1, D2, D3 |
| 2 | 10uF | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C3, C13 |
| 2 | 20pF | Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder | C1, C2 |
| 1 | 100 | Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder | R30 |
| 1 | 11mF | BCD-watch:CPH3225A | C12 |
| 1 | 32768 Hz | BCD-watch:FC-135 | Y1 |
| 1 | Breakoff | Connector_PinHeader_1.27mm:PinHeader_1x07_P1.27mm_Vertical | J2 |
| 1 | CR2032 | BCD-watch:BAT-HLD-001-xx-OTL | BT1 |
| 1 | LIS3DH | Package_LGA:LGA-16_3x3mm_P0.5mm_LayoutBorder3x5y | U2 |
| 1 | PWR | Connector_PinHeader_1.27mm:PinHeader_1x02_P1.27mm_Vertical | J3 |
| 1 | STDC14 | Connector_PinHeader_1.27mm:PinHeader_2x07_P1.27mm_Vertical_SMD | J1 |
| 1 | STM32L071CBTx | Package_QFP:LQFP-48_7x7mm_P0.5mm | U1 |
| 1 | WAKE | BCD-watch:WS-TASU SMT Tact Switch | SW1 |
Questions
How big is the PCB CR2032 PCB?
It measures 60.9 × 48 mm and has 4 copper layers, 1.6 mm thick.
What parts does the PCB CR2032 use?
76 parts, built around the LIS3DH, BAR43CFILM and CR2032. 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 PCB CR2032 KiCad files?
From the LHelge/BCD-watch repository on GitHub, at the commit this page was made from: the board is HW/PCB_CR2032/PCB_CR2032.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the PCB CR2032 design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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