Measure screen ripple and select eye-friendly devices
Measure ripple coefficient of light sources including LED, halogen, fluorescent, and incandescent lamps, as well as LCD and LED monitors. Display readings for visible spectrum radiation. Note that results may vary based on light source and frequency.
Showing 361–380 of 1,000 ranked alternatives.
国飞 闫
Input text and scroll it instantly
Convert your phone into an LED light board with scrolling subtitles and dynamic bullet screens. Input text to display scrolling messages or flash lights. Use for concerts, live streams, parties, or events. No setup required.
奇勇 颜
Control LED with BLE
Control RGB LED string via Bluetooth Low Energy. Set colors, brightness, and display modes. Adjust timing intervals and schedule lighting patterns. Pair instantly without additional setup.
Music Breath, OOO
Analyze sound and visualize frequencies
Measure sound levels with real-time precision. Analyze harmonics using multichannel FFT with adjustable parameters. Display graphical representations of audio data. Utilize AI to identify sound sources and analyze environments.
伟鹏 吴
Customize color and brightness via Bluetooth
LED lights via Bluetooth. Adjust color temperature and brightness in real time. Customize lighting settings through a simple interface. Sync with an LED controller for direct management.
NetSoft Engineering
Magnify text with iPhone light.
The app is a reading magnifier that uses the iPhone's LED light for reading small print in dark areas. Its camera view can be displayed live on an Apple Watch, allowing users to magnify text and capture images.
Kunihiko Nakahara
Flash LED light to music
The app controls the phone's LED light for flashing. It can flash in sync with music after tapping stops.
Keishi Ishimura
Scan QR codes with privacy protection
Read and scan QR codes and barcodes without user tracking or data analysis. Use LED light for low-light reading. Share scanned data via Share menu. Register contacts and calendar events directly. No ads, notifications, or unnecessary features.
Emre Can Altaca
Measure levels accurately
Measure levels in real time with precise readings. Display current and peak values. Log measurements over time and export data for analysis. Set customizable noise thresholds and receive alerts when levels exceed limits.
Angelique,Shanice Pearson
Customize lighting with color control
Control LED lights with color customization, brightness adjustment, and mood-based lighting scenes. Set schedules, create custom lighting effects, and sync with smart home systems for automated lighting control.
Steve Lidie
Calculate with RPN and stack registers
Simulates a programmable scientific calculator with RPN input. Features a 10-digit LED display, four stack registers, and ten storage registers. Includes math, trigonometric, and statistical functions.
IODEMA SRL
Lookup resistor values and color codes
Allows users to calculate resistor values using color codes and SMD codes. It includes tools for Ohm's Law, reactance, resonance, and voltage dividers. Users can determine resistor ratios, series/parallel combinations, and LED resistor needs.
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