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25 articles

Articles

Microcontroller Schematic Layout: MCU Pinouts, Buses and Peripherals
Embedded Systems 5 min

Microcontroller Schematic Layout: MCU Pinouts, Buses and Peripherals

How to draw microcontroller circuit diagrams that stay readable: splitting large MCU symbols, bus notation, crystal oscillators, decoupling, H-bridge motor drivers, sensor arrays, displays and battery management systems.

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Oscilloscope and Tester Circuits: Drawing Test Points, Shunts and Probes
Test & Measurement 5 min

Oscilloscope and Tester Circuits: Drawing Test Points, Shunts and Probes

How to draw measurement and test circuits: TP test points, shunt resistors with Kelvin sense, representing an oscilloscope or multimeter as a load, continuity testers, voltage followers, sample and hold stages and LM3914 voltmeters.

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Electrical Symbols: The Only Reference You Need (With Chart & Diagrams)
Reference 5 min

Electrical Symbols: The Only Reference You Need (With Chart & Diagrams)

Master every standard electrical symbol used in circuit schematics. This chart covers passive, active, and source symbols with IEEE vs. IEC differences and a downloadable reference diagram.

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Sensor Interface Circuit Design: Pull-Ups, MOSFET Switching and Protection
Sensors & Protection 5 min

Sensor Interface Circuit Design: Pull-Ups, MOSFET Switching and Protection

How to draw the boundary between the real world and your microcontroller: pull-up and pull-down resistors, LDR and thermistor voltage dividers, MOSFET switching stages, debounce circuits, and reverse polarity and overvoltage protection.

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Audio Amplifier Circuit Diagram Guide: Op-Amps, 555 Timers and Oscillators
Analog Design 5 min

Audio Amplifier Circuit Diagram Guide: Op-Amps, 555 Timers and Oscillators

How to draw amplifier and oscillator schematics that read clearly: op-amp triangles, feedback loops, 555 timer symbols, RC timing networks, plus LM386 and TDA2030 audio amplifier layouts.

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Power Supply Circuit Design: Drawing SMPS, Regulator and Inverter Schematics
Power Electronics 5 min

Power Supply Circuit Design: Drawing SMPS, Regulator and Inverter Schematics

How to draw power supply circuit diagrams that communicate safety and current: isolation barriers, transformer symbols, bridge rectifiers, filter capacitors, 78xx regulators, buck converters and sine wave inverters.

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555 Timer Circuit: 5 Easy Projects with Pinout & Formulas
DIY Circuits 5 min

555 Timer Circuit: 5 Easy Projects with Pinout & Formulas

A complete guide to the 555 timer circuit. Learn astable, monostable, and bistable modes, calculate timing components, and build five practical circuits, including an LED flasher and PWM dimmer.

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Logic Gate Circuit Diagrams: Symbols, Flip-Flops and Counters
Digital Logic 5 min

Logic Gate Circuit Diagrams: Symbols, Flip-Flops and Counters

How to draw logic gate circuit diagrams properly — ANSI distinctive shapes vs IEC/DIN rectangles, NOT and NAND gates built from transistors, flip-flop circuits, binary counters, and the IC 4017 decimal counter.

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Coil Wiring Diagram: Series vs Parallel, Impedance & Relay Coils
Wiring Guide 5 min

Coil Wiring Diagram: Series vs Parallel, Impedance & Relay Coils

Learn coil wiring with this step-by-step guide: dual voice coil series and parallel wiring, impedance and power handling, Arduino relay coils, troubleshooting, and safety precautions.

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The Complete Guide to Circuit Diagrams: Design, Symbols & Best Practices
Comprehensive Guide 5 min

The Complete Guide to Circuit Diagrams: Design, Symbols & Best Practices

A complete guide to circuit diagram design: the philosophy behind schematic drawing basics, every standard IEEE/ANSI electronic circuit symbol you need, and the layout rules that separate a readable schematic from an unreadable one.

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Generator Wiring Diagrams: Transfer Switch Installation & Safety Guide
Installation Guide 5 min

Generator Wiring Diagrams: Transfer Switch Installation & Safety Guide

Master generator wiring diagrams: core components like transfer switches and breakers, step-by-step installation instructions, troubleshooting, safety precautions, and FAQs.

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Kia Sedona Alternator Wiring Diagram: Wire Colors & Charging Fixes
Wiring Guide 5 min

Kia Sedona Alternator Wiring Diagram: Wire Colors & Charging Fixes

Read the 2005 Kia Sedona alternator wiring diagram with terminal functions, wire color coding, common charging failures, and a step-by-step troubleshooting guide for DIY repairs.

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