How to Make a Smart Cane for the Visually Impaired With Arduino
https://maker.pro/arduino/projects/arduino-smart-cane-for-the-blind
This simple smart cane uses an Arduino and an old cellphone vibration motor to help detect obstacles.
DIY Simple FFT Spectrum Analyzer on 16x16 LED Matrix
https://maker.pro/arduino/projects/diy-simple-fft-spectrum-analyzer-on-16x16-led-matrix-1
Visually beautiful spectrum analyzer that can also function as an Audio VU Meter and Waterfall Analyzer.
DIY Analog style Stereo VU meter on I2C Oled
https://maker.pro/arduino/projects/diy-analog-style-stereo-vu-meter-on-i2c-oled
How to make an extremely simple but visually effective VU meter at 0.9 inches Oled displays SSD 1306
Classic Style Arduino Weather Station with three Oled Displays
https://maker.pro/arduino/projects/classic-style-arduino-weather-station-with-three-oled-displays
This is a very simple, visually effective, but also very useful device that accurately displays the three basic meteorological parameters using only one inexpensive sensor.