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2y
This project, labeled "STM32-Modular," is designed around the popular STM32 microcontroller, specifically using the STM32F103C8T6 MCU from STMicroelectronics. It appears to be set up for a variety of applications, based on the use of various peripheral pins and external components connected to the MCU. The project incorporates both USB Type A (USBA) and USB Type C (USBC) connectors, an 8MHz resonator (OSC-HF), a 32kHz resonator (OSC-LF), LEDs, and multiple capacitors for decoupling purposes.
Here's a breakdown of the main elements and their designated purposes:
MCU - STM32F103C8T6
This is the central component of the project. The STM32F103C8T6 is a performance line, medium-density 32-bit MCU with 64 KB Flash, USB, CAN, 7 timers, 2 ADCs, and 9 communication interfaces.
USB Connectors
- USBA: Used for connecting the board to USB A devices, potentially for power and communication.
- USBC: Although defined, it's marked with "Enable: false", suggesting it might not be active in the current configuration.
- OSC-HF (High Frequency): An 8MHz resonator connected to pins PD0 and PD1 of the MCU for main clock.
- OSC-LF (Low Frequency): A 32kHz resonator connected to pins PC14 and PC15 for low-power operations such as RTC.
- C1, C2, C3, C4, C5: These are 100nF decoupling capacitors, likely for noise suppression on the power supply lines to stabilize the MCU operation.
- LED1: A generic LED for indicating status or diagnostics. Its anode (A) is connected through a series resistor for current limiting.
- R1, R4: 510Ω resistors, possibly used for LED current limiting or pull-up/down purposes.
- RST: Provides an external reset mechanism to the MCU. It connects to the NRST pin, enabling external control over the MCU's reset function.
The "Project Nets" section details the electrical connections (nets) between various pins and components. For instance:
- Oscillator connections to the MCU (OSC-HF and OSC-LF to PD0, PD1, PC14, and PC15).
- Various power (VDD, VSS), reset (NRST), and boot (BOOT0) connections essential for the microcontroller's operation.
- Connections to multiple GPIOs (General Purpose Input/Output) for interfacing with peripherals or sensors.
This project seems focused on creating a versatile development board for the STM32F103C8T6 MCU, incorporating essential components for basic operation, including power regulation, clock generation, and basic user interaction through LEDs. USB connectivity implies potential data communication or programming capabilities. The detailed nets indicate a well-structured approach to connecting key MCU functions with external components for experimentation or a specific application yet to be fully defined within the provided project description.
2y
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STM_PB3
STM_PB1
STM_PA6
STM_PB12
STM_PB14
Vin
USBC
Enable
false
C2
Capacitance
100nF
STM_PB11
LED1
STM_PB0
STM_PA4
STM_PA10
STM_PB5
C5
Capacitance
100nF
STM_PB7
STM_PA7
STM_PB9
Vin
C3
Capacitance
100nF
STM_PB10
STM_PA11
STM_PB8
STM_PA0
STM_PA15
Vin
STM_PA8
STM_PA1
C4
Capacitance
100nF
STM_PB13
STM_PB15
U2
STM_PA3
STM_PA2
STM_PB4
STM_PA5
STM_PB2
STM_PA12
STM_PA9
C1
Capacitance
100nF
STM_PA14
STM_PA13
STM_PB6
R1
Resistance
510 Ω
Reviews
- Wirelessly connects nets on schematic. Used to organize schematics and separate functional blocks. To wirelessly connect net portals, give them same designator. #portaljharwinbarrozo43.0M
- Wirelessly connects power nets on schematic. Identical to the net portal, but with a power symbol. Used to organize schematics and separate functional blocks. To wirelessly connect power net portals, give them the same designator. #portal #powerjharwinbarrozo11.4M
- A generic fixed resistor ideal for rapid circuit topology development. Its footprint automatically adapts based on the selected package case code—supporting 0402, 0603, 0805, 1203, and many other standard SMD packages, as well as axial horizontal and vertical configurations. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard resistor values: 1.0 ohm, 10 ohm, 100 ohm, 1.0k ohm, 10k ohm, 100k ohm, 1.0M ohm 1.1 ohm, 11 ohm, 110 ohm, 1.1k ohm, 11k ohm, 110k ohm, 1.1M ohm 1.2 ohm, 12 ohm, 120 ohm, 1.2k ohm, 12k ohm, 120k ohm, 1.2M ohm 1.3 ohm, 13 ohm, 130 ohm, 1.3k ohm, 13k ohm, 130k ohm, 1.3M ohm 1.5 ohm, 15 ohm, 150 ohm, 1.5k ohm, 15k ohm, 150k ohm, 1.5M ohm 1.6 ohm, 16 ohm, 160 ohm, 1.6k ohm, 16k ohm, 160k ohm, 1.6M ohm 1.8 ohm, 18 ohm, 180 ohm, 1.8K ohm, 18k ohm, 180k ohm, 1.8M ohm 2.0 ohm, 20 ohm, 200 ohm, 2.0k ohm, 20k ohm, 200k ohm, 2.0M ohm 2.2 ohm, 22 ohm, 220 ohm, 2.2k ohm, 22k ohm, 220k ohm, 2.2M ohm 2.4 ohm, 24 ohm, 240 ohm, 2.4k ohm, 24k ohm, 240k ohm, 2.4M ohm 2.7 ohm, 27 ohm, 270 ohm, 2.7k ohm, 27k ohm, 270k ohm, 2.7M ohm 3.0 ohm, 30 ohm, 300 ohm, 3.0K ohm, 30K ohm, 300K ohm, 3.0M ohm 3.3 ohm, 33 ohm, 330 ohm, 3.3k ohm, 33k ohm, 330k ohm, 3.3M ohm 3.6 ohm, 36 ohm, 360 ohm, 3.6k ohm, 36k ohm, 360k ohm, 3.6M ohm 3.9 ohm, 39 ohm, 390 ohm, 3.9k ohm, 39k ohm, 390k ohm, 3.9M ohm 4.3 ohm, 43 ohm, 430 ohm, 4.3k ohm, 43K ohm, 430K ohm, 4.3M ohm 4.7 ohm, 47 ohm, 470 ohm, 4.7k ohm, 47k ohm, 470k ohm, 4.7M ohm 5.1 ohm, 51 ohm, 510 ohm, 5.1k ohm, 51k ohm, 510k ohm, 5.1M ohm 5.6 ohm, 56 ohm, 560 ohm, 5.6k ohm, 56k ohm, 560k ohm, 5.6M ohm 6.2 ohm, 62 ohm, 620 ohm, 6.2k ohm, 62K ohm, 620K ohm, 6.2M ohm 6.8 ohm, 68 ohm, 680 ohm, 6.8k ohm, 68k ohm, 680k ohm, 6.8M ohm 7.5 ohm, 75 ohm, 750 ohm, 7.5k ohm, 75k ohm, 750k ohm, 7.5M ohm 8.2 ohm, 82 ohm, 820 ohm, 8.2k ohm, 82k ohm, 820k ohm, 8.2M ohm 9.1 ohm, 91 ohm, 910 ohm, 9.1k ohm, 91k ohm, 910k ohm, 9.1M ohm #generics #CommonPartsLibraryjharwinbarrozo1.5M
- A generic fixed capacitor ideal for rapid circuit topology development. You can choose between polarized and non-polarized types, its symbol and the footprint will automatically adapt based on your selection. Supported options include standard SMD sizes for ceramic capacitors (e.g., 0402, 0603, 0805), SMD sizes for aluminum electrolytic capacitors, and through-hole footprints for polarized capacitors. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard capacitor values: 1.0pF, 10pF, 100pF, 1000pF, 0.01uF, 0.1uF, 1.0uF, 10uF, 100uF, 1000uF, 10000uF 1.1pF, 11pF, 110pF, 1100pF 1.2pF, 12pF, 120pF, 1200pF 1.3pF, 13pF, 130pF, 1300pF 1.5pF, 15pF, 150pF, 1500pF, 0.015uF, 0.15uF, 1.5uF, 15uF, 150uF, 1500uF 1.6pF, 16pF, 160pF, 1600pF 1.8pF, 18pF, 180pF, 1800pF 2.0pF, 20pF, 200pF, 2000pF 2.2pF, 22pF, 220pF, 2200pF, 0.022uF, 0.22uF, 2.2uF, 22uF, 220uF, 2200uF 2.4pF, 24pF, 240pF, 2400pF 2.7pF, 27pF, 270pF, 2700pF 3.0pF, 30pF, 300pF, 3000pF 3.3pF, 33pF, 330pF, 3300pF, 0.033uF, 0.33uF, 3.3uF, 33uF, 330uF, 3300uF 3.6pF, 36pF, 360pF, 3600pF 3.9pF, 39pF, 390pF, 3900pF 4.3pF, 43pF, 430pF, 4300pF 4.7pF, 47pF, 470pF, 4700pF, 0.047uF, 0.47uF, 4.7uF, 47uF, 470uF, 4700uF 5.1pF, 51pF, 510pF, 5100pF 5.6pF, 56pF, 560pF, 5600pF 6.2pF, 62pF, 620pF, 6200pF 6.8pF, 68pF, 680pF, 6800pF, 0.068uF, 0.68uF, 6.8uF, 68uF, 680uF, 6800uF 7.5pF, 75pF, 750pF, 7500pF 8.2pF, 82pF, 820pF, 8200pF 9.1pF, 91pF, 910pF, 9100pF #generics #CommonPartsLibraryjharwinbarrozo1.5M
- A generic fixed inductor suitable for rapid circuit topology development. The footprint automatically adapts based on the selected package, supporting standard SMD sizes (e.g., 0402, 0603, 0805) as well as well-known inductor packages such as SDR1806, PA4320, SRN6028, and SRR1260. Standard inductor values: 1.0 nH, 10 nH, 100 nH, 1.0 µH, 10 µH, 100 µH, 1.0 mH 1.2 nH, 12 nH, 120 nH, 1.2 µH, 12 µH, 120 µH, 1.2 mH 1.5 nH, 15 nH, 150 nH, 1.5 µH, 15 µH, 150 µH, 1.5 mH 1.8 nH, 18 nH, 180 nH, 1.8 µH, 18 µH, 180 µH, 1.8 mH 2.2 nH, 22 nH, 220 nH, 2.2 µH, 22 µH, 220 µH, 2.2 mH 2.7 nH, 27 nH, 270 nH, 2.7 µH, 27 µH, 270 µH, 2.7 mH 3.3 nH, 33 nH, 330 nH, 3.3 µH, 33 µH, 330 µH, 3.3 mH 3.9 nH, 39 nH, 390 nH, 3.9 µH, 39 µH, 390 µH, 3.9 mH 4.7 nH, 47 nH, 470 nH, 4.7 µH, 47 µH, 470 µH, 4.7 mH 5.6 nH, 56 nH, 560 nH, 5.6 µH, 56 µH, 560 µH, 5.6 mH 6.8 nH, 68 nH, 680 nH, 6.8 µH, 68 µH, 680 µH, 6.8 mH 8.2 nH, 82 nH, 820 nH, 8.2 µH, 82 µH, 820 µH, 8.2 mH #generics #CommonPartsLibraryjharwinbarrozo15.6k
- An electrical connector acting as reusable interface to a conductor and creating a point where external circuits can be connected.Terminal
- 47 kOhms ±5% 0.125W, 1/8W Chip Resistor 0805 (2012 Metric) Automotive AEC-Q200 Thick Film #forLedBlinkjharwinbarrozo1.2M
- 10uF Capacitor Aluminum Polymer 20% 16V SMD 5x5.3mm #forLedBlink #commonpartslibrary #capacitor #aluminumpolymer #radialcanjharwinbarrozo1.2M
- Yellow 595nm LED Indication - Discrete 1.7V 1206 (3216 Metric) #forLedBlinkjharwinbarrozo1.1M
STM32-Modular
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Properties
Properties describe core aspects of the project.
Pricing & Availability
Distributor | Qty 1 |
|---|---|
Digi-Key | $6.42 |
LCSC | $1.42 |
Mouser | $6.11 |
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- Microcontroller (U2): STM32F103C8T6 is at the heart of this project, intended to handle various inputs, outputs, and processing tasks. It is connected to a variety of pins and external components, indicating a multifunctional application.
- Decoupling Capacitors (C1, C2, C3, C4, C5): Each with a capacitance of 100nF, these are used for stabilizing the power supply to the microcontroller by filtering out noise from the power lines.
- LED (LED1): For visual feedback, possibly for status indication.
- Resistors (R1, R4): With a resistance of 510 Ohms, are likely current-limiting resistors for LEDs or for pull-up/down configurations.
- High Frequency Resonator (OSC-HF): A resonator designated for operation at 8 MHz, connected to the microcontroller for clocking purposes.
- Low Frequency Resonator (OSC-LF): A 32 kHz resonator likely used for real-time clock functions or low-power operation modes.
- USB Connectors (USBA and USBC): These connections suggest the inclusion of USB interface functionality. The USBA connector includes 3V3 power and data lines (D+, D-), while the USBC connector, despite being present, is disabled in the design.
- Reset Circuitry (RST): Includes connections for a reset mechanism for the microcontroller, indicating a need for manual or external reset control.
Notable Connections:- The project contains several nets connecting various pins of the microcontroller to other components. For example, oscillator connections for both high and low frequency operation suggest a design that may require precise timing or power-efficient sleep modes.
- Ground connections are extensively laid out, connecting multiple ground pins across the microcontroller, USB connectors, resonators, and decoupling capacitors. This is critical for the stability of the system.
- Power supply connections through Vin and 3V3 lines to multiple components denote a carefully considered power distribution strategy, critical for ensuring stable operations.
- A variety of other STM_PAx and STM_PBx pins from the microcontroller are used, although their specific functions are not detailed. These connections are likely to external interfaces, sensors, actuators, or additional modules based on the user’s application need.
Summary: