4 layers70.1 × 65.2 mm
Solar debug board
stellarcorp/tvsc
Core software repository for the Tennessee Valley Stellar Corporation
33 parts1MIT
4 layers70 × 70 mm
Pcb custom
sorjente/custom-pcb1This is an attempt to build a minimal, custom PCB featuring an STM32L4 MCU, using (ideally only) open source tools. It will hopefully serve as a stepping stone to build more complex embedded systems.
- Size
- 70 × 70 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 41
- Nets
- 55
- Pads
- 221
- Tracks, vias
- 484, 47
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 21 May 2020
- Updated
- 19 Jul 2020
Overview
Pcb custom is an open-source printed circuit board by sorjente, from the sorjente/custom-pcb repository on GitHub, published under the GPL-3.0 licence. It is a 4-layer board of 70 × 70 mm with 41 parts on 55 nets, routed with 484 tracks and 47 vias.
It is built around the STM32L452CEU6, AMS1117-3.3 and B5819W. Its parts include 15 capacitors, 5 diodes, 5 connectors, 4 resistors and 3 switches. It belongs with the STM32 boards of this library.
Main components
3
STM32L452CEU6
QFN-48-EP(7x7)-40℃~+85℃ 1.71V~3.6V 12bit 12bit 160KB 32 Bit 38 512KB 80MHz ARM Cortex-M4 Built-in FLASH QFN-48-EP(7x7) Microcontrollers (MCU/MPU/SOC) ROHSSTMicroelectronicsMicrocontrollers (MCU/MPU/SOC)
AMS1117-3.3
SOT-223-40℃~+125℃ 0.003%Vout 1 1.1V@(800mA) 15V 1A 3.3V 5mA 72dB@(120Hz) Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSAdvanced Monolithic SystemsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
B5819W
SOD-123-55℃~+125℃ 1.5A 1mA@40V 25A 40V 600mV@1A Standalone SOD-123 Schottky Diodes ROHSMDDSchottky Diodes
README
README.mdCustom STM32L4 PCB
What?
This is an attempt to build a minimal, custom PCB featuring an STM32L4 MCU, using (ideally only) open source tools. It will hopefully serve as a stepping stone to build more complex embedded systems.
Why?
Because learning is fun.
Who?
Setting up this project
To set up this project, you can start by cloning it:
$ git clone https://github.com/kokkonisd/custom-pcbYou then need to pull libopencm3. You can do this by running make in hello_opencm3/, or do it manually:
$ git submodule init
$ git submodule update
$ cd hello_opencm3/libopencm3/ && makeYou only need to do this once.
Parts
41| Qty | Value | Footprint | References |
|---|---|---|---|
| 11 | 100 nF | Capacitor_SMD:C_0402_1005Metric | C2, C3, C4, C5, C6, C7, C8, C9, C13, C14, C15 |
| 4 | 510 | Resistor_SMD:R_0603_1608Metric | R1, R2, R3, R4 |
| 4 | MountingHole_Pad | MountingHole:MountingHole_4.3mm_M4_Pad_Via | H1, H2, H3, H4 |
| 3 | 10 uF | Capacitor_SMD:C_0805_2012Metric | C1, C11, C12 |
| 3 | SW_Push | Button_Switch_SMD:SW_SPST_EVQP0 | SW1, SW2, SW3 |
| 2 | 100 @ 100 MHz | Inductor_SMD:L_0805_2012Metric | FB1, FB2 |
| 1 | 10 nF | Capacitor_SMD:C_0402_1005Metric | C10 |
| 1 | AMS1117-3.3 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U1 |
| 1 | B5819W | Diode_SMD:D_SOD-123 | D1 |
| 1 | Conn_02x07_Odd_Even | Connector_PinHeader_1.27mm:PinHeader_2x07_P1.27mm_Vertical | J2 |
| 1 | Conn_3V3 | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J3 |
| 1 | Conn_PortA | Connector_PinHeader_2.54mm:PinHeader_1x16_P2.54mm_Vertical | J5 |
| 1 | Conn_PortB | Connector_PinHeader_2.54mm:PinHeader_1x16_P2.54mm_Vertical | J4 |
| 1 | Conn_VIN | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J1 |
| 1 | Fuse_Small | Fuse:Fuse_0603_1608Metric | F1 |
| 1 | LED_Blue | LED_SMD:LED_0603_1608Metric | D3 |
| 1 | LED_Green | LED_SMD:LED_0603_1608Metric | D4 |
| 1 | LED_PWR | LED_SMD:LED_0603_1608Metric | D2 |
| 1 | LED_Red | LED_SMD:LED_0603_1608Metric | D5 |
| 1 | STM32L452CEU6 | Package_DFN_QFN:QFN-48-1EP_7x7mm_P0.5mm_EP5.6x5.6mm | U2 |
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Questions
How big is the Pcb custom PCB?
It measures 70 × 70 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Pcb custom use?
41 parts, built around the STM32L452CEU6, AMS1117-3.3 and B5819W. 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 custom KiCad files?
From the sorjente/custom-pcb repository on GitHub, at the commit this page was made from: the board is kicad/pcb-custom.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Pcb custom design in my own project?
Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).