Device & Sensors
Device orientation, sound, camera and location utilities
11 free tools — no ads, no sign-up, everything runs in your browser.
Digital Bubble Level
Measure surface tilt with a visual bullseye and a ±0.2° level threshold.
Digital Compass
Read a device heading with a manual desktop simulator and magnetic interference guidance.
Flashlight & Signal Beacon
Use a supported phone LED or a dimmable full-screen light with blink patterns, SOS and Morse signals.
GPS Speedometer
Track speed and distance from GPS with a Haversine fallback when speed is null.
I2C & SPI Bus Timing Diagram
Scan I2C device lists for address conflicts (7-bit/8-bit normalized) and inspect SPI CPOL/CPHA timing modes with pull-up and max-speed guidance. Runs entirely in your browser.
IoT Pil Ömrü Tahminleyici
Mikrodenetleyici pil ömrünü ve uyku çevrimini hesaplayın
PWM Duty Cycle & Motor RPM Calculator
Calculate PWM timing, average voltage, motor RPM, RC filtering, and timer registers
Resistor Color Code & SMD Decoder
Decode 4-6 band resistor colors and 3/4 digit or EIA-96 SMD markings
Screen & Physical Ruler
Use a CSS pixel ruler and calibrate it against a known physical reference.
Smart Mirror & Ring Light
Turn the front camera into a private mirrored preview with no upload.
Sound & Decibel Meter
Estimate relative sound level from the microphone with an honest calibration disclaimer.