This is a simple project using Arduino Leonardo, a potentiometer, and 10 LEDs to control computer (PC) volume using the HID-Project library and sending commands "MEDIA_VOLUME_UP" and "MEDIA_VOLUME_DOW
Arduino Leonardo PC Volume Control - Share Project - PCBWay
DIY $3 Single Chip Macro Keypad From Scratch (Arduino IDE Programmable!) : 8 Steps (with Pictures) - Instructables
Arduino Leonardo PC Volume Control - Share Project - PCBWay
Arduino Power Supply Module - Share Project - PCBWay
Are there any simple Arduino projects (or similar cheap boards) to control a room's light using a mobile phone? - Quora
Arduino Leonardo PC Volume Control - Share Project - PCBWay
How to emulate an Xbox controller with Arduino - Open Electronics - Open Electronics
Arduino Leonardo PC Volume Control - Share Project - PCBWay
#184 Make an Arduino USB Volume Control - Ideal Beginner's Project
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Arduino uno - Share Project - PCBWay
Arduino Leonardo PC Volume Control - Share Project - PCBWay
Arduino uno - Share Project - PCBWay