Hardware Detection
15 toolsPCB Gerber Layer Reference Viewer
Lists the standard Gerber file layers required for 2/4/6/8-layer PCBs, marking required vs. optional files and naming conventions to help engineers verify fabrication packages.
Transmission Line Impedance Calculator
Calculates PCB microstrip and stripline characteristic impedance using IPC-2141 formulas, and compares the result against common 50/75/90/100Ω targets.
I2C Pull-up Resistor Calculator
Calculates a compliant I2C pull-up resistor range and recommended value based on bus speed mode (Standard/Fast/Fast-plus), supply voltage, and bus capacitance.
Heatsink Thermal Resistance Calculator
Calculates the required heatsink thermal resistance (Rθsa) from a device's maximum junction temperature, ambient temperature, power dissipation, and junction-to-case/case-to-sink resistances, with heatsink recommendations.
Op-Amp Gain Calculator
Calculates gain (in V/V and dB) and output voltage for five basic op-amp circuit configurations: non-inverting, inverting, differential, voltage follower, and non-inverting summing amplifier.
Buck-Boost Converter Design Calculator
Calculates duty cycle, minimum inductance, current ripple, peak current, and output capacitance for Buck, Boost, and Buck-Boost switching converter topologies.
Antenna Length Calculator
Calculates wavelength and physical antenna length for quarter-wave, half-wave, full-wave, and 5/8-wave antenna types from operating frequency, with velocity factor adjustment and common RF band presets.
ADC Resolution Calculator
Enter ADC bit depth and reference voltage to calculate LSB voltage, quantization error, and dynamic range (dB), with bidirectional conversion between input voltage and ADC reading.
PWM Duty Cycle Calculator
Supports two calculation modes — "frequency + duty cycle → timing" and "period + high time → duty cycle" — with optional MCU clock frequency input to compute PWM resolution in bits.
Fuse Selection Calculator
Recommends fuse current rating (nearest standard value), voltage rating, and fuse type based on load type, operating voltage, and normal current, using industry derating factors, with optional inrush I²t calculation.
Keyboard Tester
Online keyboard tester that highlights each key the moment you press it, so you can quickly check that every key on the keyboard responds. No software to install.
Microphone Test
Online microphone tester that checks whether your mic is working in one click, showing a live volume waveform and letting you record a short clip and play it back. No software to install.
Reaction Time Test
Online reaction speed test. Click as soon as the signal turns green to measure your visual reaction time in milliseconds, with support for repeated attempts and an automatic average.
Mouse Sensitivity Converter
Online mouse sensitivity converter for FPS games. Convert sensitivity between titles using DPI and eDPI so your aim feels identical when you switch games.
Web Serial Debugger
Online serial port debugging tool built on the Web Serial API. Connect to a serial device straight from the browser with no driver installation, send commands and watch incoming data in real time.