This design implements a USB security token powered by an STM32 microcontroller. The device is engineered for compactness and efficient PCB integration while ensuring robust security features. Key elements of the design include: - **Microcontroller Core:** A STM32F103T8U6 serves as the primary processing unit, handling USB communication and security protocols. - **USB Interface:** A USB-A plug provides connectivity to the host. Dedicated net portals ensure proper routing of the VBUS, D+, D–, and ground signals. - **Power Regulation:** A low-dropout regulator supplies a stable 3.3V operating voltage, ensuring low noise and proper current supply to the microcontroller and peripherals. - **Signal Conditioning and EMI Filtering:** An EMI filter is used to maintain signal integrity and reduce interference while preserving the security token’s functionality. - **Synchronous Elements:** A ceramic resonator is incorporated to provide a precise clock source for USB data transfer and microcontroller operations. - **Additional Components:** Surface-mount resistors, capacitors, and LED indicators are deployed to ensure proper conditioning, decoupling, and status feedback. Their compact 0402 packages facilitate a highly integrated design. - **Connectivity and Net Portals:** Custom net portals are used throughout the schematic to streamline connectivity and PCB layout, keeping the design modular and easy to modify. This USB security token is designed with industry-standard components and robust connectivity to ensure secure, reliable operation in portable security applications. #USBToken #STM32 #PCBDesign #SecurityTechnology #PortableSecurity #Microcontrollers #USBInterface #PowerRegulation #EMIProtection #CompactDesign

Welcome to your new project. Imagine what you can build here.

I want to create a standard interface from my PCBs to my test equipment. My equipment: PSU: Rigol DP832 Scope: Siglent SDS 1202X-E WaveGen: Siglent SDG810 Logic Analyzer: DSLogic Plus 400MHz VNA: NanoVNA V2 6 scope channels (4 1X, 2 10X) 8 Logic Analyzer channels 1 Wavegen channel 4 Power Nets ( 2 pins each) (tie power nets to oscilloscope inputs) #template #testing

NOT RECOMMENDED FOR NEW DESIGNS. It did not work during testing. Please refer to [my other project that worked successfully.](https://www.flux.ai/markwuflux/ch340c-esp32-programmer-v2-bottom-layer) Using this programmer to exploit the extra pins given by a USB 3.0 Superspeed cable. By doing so, you can program an ESP32 without adding a programmer port. NOT Compliant with USB-C Standard

Learn how to use Copilot, your AI design assistant, to brainstorm and develop a new idea from concept to custom board design. Discuss requirements, generate architectures, research parts, and draw your schematic.

Keyboard based on the F-Society Keyboard.

Welcome to your new project. Imagine what you can build here.

I want to create a standard interface from my PCBs to my test equipment. My equipment: PSU: Rigol DP832 Scope: Siglent SDS 1202X-E WaveGen: Siglent SDG810 Logic Analyzer: DSLogic Plus 400MHz VNA: NanoVNA V2 6 scope channels (4 1X, 2 10X) 8 Logic Analyzer channels 1 Wavegen channel 4 Power Nets ( 2 pins each) (tie power nets to oscilloscope inputs) #template #testing

Possible future project?

Learn how to use Copilot, your AI design assistant, to brainstorm and develop a new idea from concept to custom board design. Discuss requirements, generate architectures, research parts, and draw your schematic.

Learn how to use Copilot, your AI design assistant, to brainstorm and develop a new idea from concept to custom board design. Discuss requirements, generate architectures, research parts, and draw your schematic.

Learn how to use Copilot, your AI design assistant, to brainstorm and develop a new idea from concept to custom board design. Discuss requirements, generate architectures, research parts, and draw your schematic.

I2C to dual PWM controller. The LED-Warrior18, manufactured by Code Mercenaries, is an I2C to dual channel PWM LED driver specifically designed to provide seamless brightness control for LED applications. This component, available in SOIC8 package (LW18-S) and as a ready-to-use module (LW18-01MOD), offers dual 16-bit PWM outputs with a dimming range from 0.001% to 100% and operates at a PWM frequency of 730 Hz. It supports programmable period lengths for higher-frequency or lower-resolution operation and includes an 8-bit data to logarithmic mapping feature for smoother dimming operations with just 256 steps. The LED-Warrior18 is engineered for minimal external circuitry with a 5V power supply requirement, offering ease of use in various lighting applications. It also features a sync mode for synchronized control of multiple units and customizable power-on status settings, making it highly versatile for standalone operations or integrated systems. Additionally, custom variants of both the chip and module are available, catering to specific application needs. The module version, LW18-01MOD, simplifies integration by including terminal blocks and supporting up to 4A load sink current for each output. The LED-Warrior18 stands out for its straightforward interface and operational flexibility, providing a comprehensive solution for advanced LED dimming and control projects.

The TUSB8041 by Texas Instruments is a highly integrated four-port USB 3.0 hub controller designed to facilitate high-speed data transfers and power management in computer systems, docking stations, monitors, and set-top boxes. This component offers simultaneous SuperSpeed USB (5 Gbps), high-speed (480 Mbps), full-speed (12 Mbps), and low-speed (1.5 Mbps) data connections, ensuring backward compatibility with USB 2.0 and USB 1.x devices. Key features include multi-transaction translation with four transaction translators, asynchronous endpoint buffers for improved data management, and comprehensive battery charging support compliant with various standards including CDP, DCP, and Chinese Telecommunications Industry Standard YD/T 1591-2009. Flexible power management options are available, catering to both per-port and ganged power control configurations, alongside over-current protection mechanisms. The device also supports custom configurations via OTP ROM, serial EEPROM, or I2C/SMBus interfaces, enabling customization for vendor IDs, product IDs, port specifics, and string descriptors. Ease of integration is further enhanced with the ability for on-board and in-system OTP/EEPROM programming via the USB 2.0 upstream port, and the device requires no special drivers, operating seamlessly with any OS that supports USB. Packaged in a compact 64-pin QFN format, the TUSB8041 is offered in both commercial (0℃ to 70℃) and industrial temperature (-40℃ to 85℃) ranges, ensuring robust performance across diverse environmental conditions. With a single clock input requirement and comprehensive system resource support, the TUSB8041 is ideal for developers aiming to implement high-performance and reliable USB hubs in their designs.

This is a custom flight controller based around a STM32F103C8T6. It contains a BMP280 to measure the altitude of a drone, an ICM-42688-P that contains an accelerometer and gyroscope for motion control. The input voltage should be 12V and is set up to work with a LiPo battery.

this is a custom board using the MCU "STM32F107RBTx". the reason why i chose this MCU is because i wanted to implement circuits for ethernet communication, CAN communication and USB communication.

Welcome to your new project. Imagine what you can build here.

Welcome to your new project. Imagine what you can build here.

Welcome to your new project. Imagine what you can build here.

Welcome to your new project. Imagine what you can build here.

Welcome to your new project. Imagine what you can build here.

I want to create a standard interface from my PCBs to my test equipment. My equipment: PSU: Rigol DP832 Scope: Siglent SDS 1202X-E WaveGen: Siglent SDG810 Logic Analyzer: DSLogic Plus 400MHz VNA: NanoVNA V2 6 scope channels (4 1X, 2 10X) 8 Logic Analyzer channels 1 Wavegen channel 4 Power Nets ( 2 pins each) (tie power nets to oscilloscope inputs) #template #testing

I want to create a standard interface from my PCBs to my test equipment. My equipment: PSU: Rigol DP832 Scope: Siglent SDS 1202X-E WaveGen: Siglent SDG810 Logic Analyzer: DSLogic Plus 400MHz VNA: NanoVNA V2 6 scope channels (4 1X, 2 10X) 8 Logic Analyzer channels 1 Wavegen channel 4 Power Nets ( 2 pins each) (tie power nets to oscilloscope inputs) #template #testing

I want to create a standard interface from my PCBs to my test equipment. My equipment: PSU: Rigol DP832 Scope: Siglent SDS 1202X-E WaveGen: Siglent SDG810 Logic Analyzer: DSLogic Plus 400MHz VNA: NanoVNA V2 6 scope channels (4 1X, 2 10X) 8 Logic Analyzer channels 1 Wavegen channel 4 Power Nets ( 2 pins each) (tie power nets to oscilloscope inputs) #template #testing

I want to create a standard interface from my PCBs to my test equipment. My equipment: PSU: Rigol DP832 Scope: Siglent SDS 1202X-E WaveGen: Siglent SDG810 Logic Analyzer: DSLogic Plus 400MHz VNA: NanoVNA V2 6 scope channels (4 1X, 2 10X) 8 Logic Analyzer channels 1 Wavegen channel 4 Power Nets ( 2 pins each) (tie power nets to oscilloscope inputs) #template #testing

Welcome to your new project. Imagine what you can build here.

Welcome to your new project. Imagine what you can build here.

Welcome to your new project. Imagine what you can build here.

I want to create a standard interface from my PCBs to my test equipment. My equipment: PSU: Rigol DP832 Scope: Siglent SDS 1202X-E WaveGen: Siglent SDG810 Logic Analyzer: DSLogic Plus 400MHz VNA: NanoVNA V2 6 scope channels (4 1X, 2 10X) 8 Logic Analyzer channels 1 Wavegen channel 4 Power Nets ( 2 pins each) (tie power nets to oscilloscope inputs) #template #testing

Welcome to your new project. Imagine what you can build here.

Welcome to your new project. Imagine what you can build here.

I want to create a standard interface from my PCBs to my test equipment. My equipment: PSU: Rigol DP832 Scope: Siglent SDS 1202X-E WaveGen: Siglent SDG810 Logic Analyzer: DSLogic Plus 400MHz VNA: NanoVNA V2 6 scope channels (4 1X, 2 10X) 8 Logic Analyzer channels 1 Wavegen channel 4 Power Nets ( 2 pins each) (tie power nets to oscilloscope inputs) #template #testing

Welcome to your new project. Imagine what you can build here.

Welcome to your new project. Imagine what you can build here.

Welcome to your new project. Imagine what you can build here.

Welcome to your new project. Imagine what you can build here.

A Fire Alarm and Mass Notification Unit developed by multiple Fire Alarm Enthusiasts.

Welcome to your new project. Imagine what you can build here.

Welcome to your new project. Imagine what you can build here.

Welcome to your new project. Imagine what you can build here.

I want to create a standard interface from my PCBs to my test equipment. My equipment: PSU: Rigol DP832 Scope: Siglent SDS 1202X-E WaveGen: Siglent SDG810 Logic Analyzer: DSLogic Plus 400MHz VNA: NanoVNA V2 6 scope channels (4 1X, 2 10X) 8 Logic Analyzer channels 1 Wavegen channel 4 Power Nets ( 2 pins each) (tie power nets to oscilloscope inputs) #template #testing

I want to create a standard interface from my PCBs to my test equipment. My equipment: PSU: Rigol DP832 Scope: Siglent SDS 1202X-E WaveGen: Siglent SDG810 Logic Analyzer: DSLogic Plus 400MHz VNA: NanoVNA V2 6 scope channels (4 1X, 2 10X) 8 Logic Analyzer channels 1 Wavegen channel 4 Power Nets ( 2 pins each) (tie power nets to oscilloscope inputs)

Welcome to your new project. Imagine what you can build here.

Welcome to your new project. Imagine what you can build here.

Welcome to your new project. Imagine what you can build here.

Welcome to your new project. Imagine what you can build here.