4 layers50.8 × 50.8 mm
4 layers61.2 × 54.5 mm
CentralCommand
AlanFord/CentralCommandCentral Command pcb for the Contextual Electronics class
- Size
- 61.2 × 54.5 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 69
- Nets
- 66
- Pads
- 263
- Tracks, vias
- 627, 85
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 4
- Created
- 25 Mar 2017
- Updated
- 2 Oct 2021
Overview
CentralCommand is an open-source printed circuit board by AlanFord, from the AlanFord/CentralCommand repository on GitHub. It is a 4-layer board of 61.2 × 54.5 mm with 69 parts on 66 nets, routed with 627 tracks and 85 vias.
It is built around the STM32F030C8T6, FT232RQ and MCP1700T-3302E/TT(MS). Its parts include 15 capacitors, 15 resistors, 12 connectors, 6 diodes and 3 ICs. It belongs with the STM32 boards of this library.
Main components
3
STM32F030C8T6
LQFP-48(7x7)-40℃~+85℃ 12bit 2.4V~3.6V 32 Bit 39 48MHz 64KB 8KB ARM Cortex-M0 Built-in FLASH LQFP-48(7x7) Microcontrollers (MCU/MPU/SOC) ROHSSTMicroelectronicsMicrocontrollers (MCU/MPU/SOC)
FT232RQ
PQFN32USB to serial UART InterfaceFTDIUncategorised
MCP1700T-3302E/TT(MS)
SOT-23-40℃~+85℃@(Ta) 1 120uVrms 180mV@(300mA) 2uA 3.3V 300mA 5.5V 80dB@(100Hz) Fixed Over Current Protection、Over Temperature Protection Positive SOT-23 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSMSKSEMIVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
README
README.mdCentralCommand
Central Command pcb for the Contextual Electronics class
The objective of this portion of the class was to design and build a development board based on the STM32F030 MCU. USB functionality is provided via an FTDI FT232RQ device attached to USART2. An 8Mhz external clock is provided by a crystal. External headers are provided for USART1, I2C2, SPI1, ADC, and a programming connection. I2C1 functionality is provided via two JST SH connectors. One user LED is provided. An on-board reset button will reset the mcu.
The board can be powered either by the USB connection or via an external power supply providing between 3.75 and 6V. The voltage regulator can provide a maximum of 250 mA at 3.3V.
UPDATE: The board should be powered through the external power connection P202 when the board is being programmed. If the board is powered via the USB connector during programming, the trace between the reset button, SW301, and the FTD232RQ USB interface must be cut. Without cutting this trace the mcu reset that occurs during programming will simultaneously reset the FTD232RQ device, momentarily powering down the entire board.
UPDATE #2: The firmware folders and files have been restructured and updated to support the use of the STM32CubeIDE. To use the IDE, simply create a workspace and import this project.
Parts
69| Qty | Value | Footprint | References |
|---|---|---|---|
| 7 | 0 | Resistors_SMD:R_0805 | R201, R202, R301, R302, R303, R304, R305 |
| 5 | 0.1u | Capacitors_SMD:C_0805 | C203, C204, C205, C206, C301 |
| 3 | 0.1uF | Capacitors_SMD:C_0805 | C104, C105, C106 |
| 3 | 270 | Resistors_SMD:R_0805 | R101, R205, R206 |
| 2 | 10nF | Capacitors_SMD:C_0805 | C107, C201 |
| 2 | 26pF | Capacitors_SMD:C_0805 | C101, C102 |
| 2 | 4.7K | Resistors_SMD:R_0805 | R306, R307 |
| 2 | 40nH | Capacitors_SMD:C_0805 | L101, L201 |
| 2 | D_Schottky_Small | Diodes_SMD:D_0805 | D201, D202 |
| 2 | GPIO1 | Pin_Headers:Pin_Header_Straight_1x12 | P102, P103 |
| 2 | NOPOP | Resistors_SMD:R_0805 | R203, R204 |
| 1 | 1uF | Capacitors_SMD:C_0805 | C108 |
| 1 | 330 | Resistors_SMD:R_0805 | R207 |
| 1 | 4.7u | Capacitors_SMD:C_0805 | C202 |
| 1 | 4.7uF | Capacitors_SMD:C_0805 | C103 |
| 1 | 8Mhz | Crystals:Crystal_HC49-SD_SMD | Y101 |
| 1 | ADC | Pin_Headers:Pin_Header_Straight_1x04 | P106 |
| 1 | BOOT | Pin_Headers:Pin_Header_Straight_1x03 | P304 |
| 1 | FT232RQ | CentralCommand:FT232RQ | IC201 |
| 1 | GRN LED | LEDs:LED_0805 | D203 |
| 1 | I2C | Pin_Headers:Pin_Header_Straight_1x04 | P101 |
| 1 | INPUT | Connectors_JST:JST_SH_BM04B-SRSS-TB_04x1.00mm_Straight | P303 |
| 1 | MCP1700T-3302E/TT | TO_SOT_Packages_SMD:SOT-23 | U201 |
| 1 | OUTPUT | Connectors_JST:JST_SH_BM04B-SRSS-TB_04x1.00mm_Straight | P302 |
| 1 | POWER | Pin_Headers:Pin_Header_Straight_1x02 | P202 |
| 1 | PROGRAM | Pin_Headers:Pin_Header_Straight_1x06 | P301 |
| 1 | PWR LED | LEDs:LED_0805 | D205 |
| 1 | RED LED | LEDs:LED_0805 | D101 |
| 1 | SPI | Pin_Headers:Pin_Header_Straight_1x06 | P105 |
| 1 | STM32F030C8 | Housings_QFP:LQFP-48_7x7mm_Pitch0.5mm | IC101 |
| 1 | SW_Push | CentralCommand:TL3315 | SW301 |
| 1 | USART | Pin_Headers:Pin_Header_Straight_1x04 | P104 |
| 1 | USB_OTG | CentralCommand:10118193 | P201 |
| 1 | V-IN | Measurement_Points:Measurement_Point_Round-SMD-Pad_Small | TP201 |
| 1 | YLW LED | LEDs:LED_0805 | D204 |
The 56 most common of 69 parts.
Questions
How big is the CentralCommand PCB?
It measures 61.2 × 54.5 mm and has 4 copper layers, 1.6 mm thick.
What parts does the CentralCommand use?
69 parts, built around the STM32F030C8T6, FT232RQ and MCP1700T-3302E/TT(MS). 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 CentralCommand KiCad files?
From the AlanFord/CentralCommand repository on GitHub, at the commit this page was made from: the board is Hardware/CentralCommand.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the CentralCommand design in my own project?
Its repository states no licence, so its author keeps all rights: ask AlanFord before reusing the design.
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