The Swiss Army Knife for IoT & Electronics Engineers

Fast, precise, and completely free calculators, converters, and reference tools designed for embedded systems and hardware development.

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Logic Gate Simulator• Interactive PIC18 Simulator• MCU Library Explorer•100% In-Browser • Zero Install

NEW RELEASE • BAREMETAL SILICON

Baremetal CMOS & Transistor Logic Lab

Build gates & adders from physical NMOS/PMOS transistors

Design, wire, and simulate digital circuits directly from individual MOSFET transistors. Watch real-time electron current flow through active silicon channels, auto-verify truth tables, and step cycle-by-cycle.

Real-time electron current flow particles

Baremetal NMOS & PMOS silicon transistors

Automated binary truth table validator

13 pre-built schematics (Adders, Latches, CMOS Gates)

Launch Logic Gate Simulator Try CMOS Inverter Demo

1 / 3

LIVE CMOS INVERTER CIRCUIT

Baremetal NMOS + PMOS

Input A:

Output Q:HIGH (+5V)

ACTIVE CONDUCTIONPMOS ON (Pull-Up VDD)

VERIFICATION RESULT✓ Inversion Verified

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Transistor Logic Lab: CMOS Gates & Adders

Interactive CMOS switch-level circuit simulator. Build logic gates, latches, and adders directly from NMOS and PMOS transistors with live current flow and truth table verification.

PIC18 Simulator (PIC18F4550 Web Simulator)

Free online PIC18 simulator for PIC18F4550. Browser-based microcontroller simulation with assembler, CPU core, GPIO, UART, ADC, I2C, PWM, and virtual hardware board.

Op Amp Gain Calculator: Inverting & Non-Inverting

Calculate inverting and non-inverting op amp gain, find standard E24 resistor pairs, and prevent supply rail clipping with step-by-step formulas.

555 Timer Calculator: Astable, Monostable & Diode

Calculate frequency, pulse width, and duty cycle for standard astable, diode astable, and monostable modes. Find nearest E24/E96 resistors.

Capacitor Code Calculator: Decode 104, 473 & pF/nF/µF

Decode capacitor codes (104, 473, 100, 4R7) into pF, nF, and µF values or convert capacitance to 3-digit EIA codes with tolerance and tantalum SMD guide.

Bit Calculator: AND, OR, XOR, Shifts & Bit Set/Clear

Calculate bitwise AND, OR, XOR, NOT, and bit shifts for 8, 16, 32, and 64-bit numbers.

Everything You Need for Embedded Development

Whether you are designing a low-power IoT device, configuring an ESP32, exploring logic gates, or testing microcontroller code, we provide the tools you need—all running instantly in your browser.

📐 20+ Engineering Calculators

🖥️ Interactive Simulators

📰 Curated Drivers & Libraries

Lightning Fast

Instant calculations and cycle-level simulation directly in your browser. No server round-trips.

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We don't track your calculations or circuits. No cookies, no accounts, no telemetry.

Workbench & Mobile Ready

Designed to work seamlessly on your phone, tablet, or desktop right at the workbench.