Blinking LED Circuit Design

Removed 1 component

10 days

wired power, astable, and LED output

0:29

Started: wiring 555 astable, power, LED nets

10 days

Updated 11 nets

0:04

Connected U1:GND, BT1:N, C2:P2, C1:P2, LED1:K, GND:GND

Connected BT1:P to S1:COM

Connected S1:NO, U1:VCC, C2:P1

Connected U1:R to U1:VCC

Connected U1:CV to C2:P2

Connected U1:TR, U1:THR, R2:P2, C1:P1

Connected U1:DIS to R2:P1

Connected R1:P1 to U1:VCC

Connected R1:P2 to U1:DIS

Connected U1:Q to R3:P1

Connected R3:P2 to LED1:A

10 days

Updated 2 nets

Connected U1:CV to GND:GND

Disconnected U1:CV from C2:P2

10 days

running ERC reviews and fixing issues...

31:03

Started: running ERC reviews and fixing issues

Running design review.

Running design review.

Analyzing the schematic.

Analyzing the schematic.

Running design review.

Running design review.

Searching for a component.

Creating search plan for: "PWR_FLAG"

Searching.

Searching: "PWR_FLAG"

Searching.

Searching: "PWR_FLAG"

Finished searching for a component.

Searching for components.

Searching library for: "Net Portal"

Creating search plan for: "Net Portal"

Searching.

Searching.

Searching: "Net Portal"

Searching: "power flag"

Finished searching for components.

Analyzing the schematic.

Running design review.

Preparing a simulation.

Running Simulator.

Running Simulator.

Running Simulator.

Running Simulator.

Running Simulator.

Running Simulator.

Running Simulator.

Running Simulator.

Running Simulator.

Running Simulator.

Running Simulator.

Running Simulator.

Running Simulator.

Running Simulator...

10 days

Updated 1 net

Connected U1:VCC, C2:P1, S1:NO

10 days

Updated 1 net

Connected U1:GND, BT1:N, GND:GND

10 days

Updated properties for 2 objects

Set BT1's Pin Type to "Power Output"

Set S1's Pin Type to "Passive"

10 days

Added 1 component

Added 1x Net Portal as Net1

10 days

Updated 1 net

Connected Net1:P1 to U1:VCC

10 days
Sign up to send

Refine this doc
Ask about this doc
Project Specification
Version: 0.1.0 Date: ... Author: ... Status: ... Tags: ...
1. Executive Summary
What board we're building and the intended outcome in one paragraph. ...
2. Goals and Non-Goals
What must be true in this rev, and what is explicitly out of scope. ...
2.1 Goals
...
2.2 Non-Goals
...
3. System Overview
High-level description of the system and how the board fits into it. ...
3.1 Block Diagram
A space for a simple block diagram (power + data paths). ...
4. Requirements
What the design must do (behaviorally and electrically), independent of implementation details. ...
4.1 Functional Requirements
...
4.2 Electrical Requirements
Power input, rails, currents, interfaces, sensing accuracy, etc. ...
4.3 Environmental and Reliability Requirements
Operating ranges, expected lifetime, handling constraints, safety/compliance. ...
5. Constraints
Hard limits that shape the design choices. ...
5.1 Mechanical Constraints
Size, mounting, connector access, enclosure interactions. ...
5.2 Power and Thermal Constraints
Power source limits, dissipation ceilings, heat-sensitive components. ...
5.3 Layout / Implementation Constraints
High-level layout rules (keepouts, grounding intent, routing classes), without detailed PCB guidance. ...
5.4 Cost and Sourcing Constraints
Target cost range, availability requirements, preferred vendors/alternates policy. ...
6. Assumptions and Dependencies
What we assume is true, and what the design depends on (parts, standards, external systems). ...
7. Validation Criteria
What “done” means in terms of checks and evidence (not task lists). ...
7.1 Acceptance Tests
...
7.2 Review Checklist
...
Appendix (Optional)
Any supporting urls, analysis, datasets, or taxonomy notes that informed this spec. ...

    1. Executive Summary

    2. Goals and Non-Goals

    2.1 Goals

    2.2 Non-Goals

    3. System Overview

    3.1 Block Diagram

    4. Requirements

    4.1 Functional Requirements

    4.2 Electrical Requirements

    4.3 Environmental and Reliability Requirements

    5. Constraints

    5.1 Mechanical Constraints

    5.2 Power and Thermal Constraints

    5.3 Layout / Implementation Constraints

    5.4 Cost and Sourcing Constraints

    6. Assumptions and Dependencies

    7. Validation Criteria

    7.1 Acceptance Tests

    7.2 Review Checklist

    Appendix (Optional)

Documents

    Project Specification

    fmea-report

Assets

star-center.svg

star-center.svg

star-centerDefault
star.svg

star.svg

star

xxx

xxx thumbnail
USB-C Digital Compass Module with STM32, HMC5883L, TM1637 Display, and Enhanced Power Protection (JLCPCB-Ready)

Properties

90.2mm × 35.4mm

90.2

mm

Layer 2: GND plane; Layer 3: 3.3V plane

35.4

mm

Standard 4 Layer

graph LR subgraph Power Subsystem USB_C[USB-C Connector] --> Input_Protection[Input Protection] Input_Protection --> Regulator[3.3V Regulator] end subgraph Core Subsystem Regulator --> MCU[Microcontroller] MCU --> Magnetometer[I2C Magnetometer] end subgraph Display Subsystem MCU -->|Control Interface| DisplayDriver[Display Driver ICs] DisplayDriver --> SevenSeg[3×7-Segment Displays] end subgraph UI Subsystem MCU --> Potentiometer[Brightness Pot w/ Switch] MCU --> StatusLED[Status LED] MCU --> ProgHeader[Programming Header] end subgraph Mechanical Board --> MountHoles[4× Mounting Holes] end

12.8

mm

Pricing & Availability

Distributor

Qty 1

Controls