Arduino Breathing LED Functions — Maker Portal

Development of a wearable belt with integrated sensors for measuring multiple physiological parameters related to heart failure

Cute Little Valentine's Day Gift - Share Project - PCBWay

This Arduino radar lets you control an LED with your breath. - Embedded blog - Arm Community blogs - Arm Community

CircuitPython Made Easy on Circuit Playground Express

C++ Blynk (Legacy) - Code Examples for Basic Tasks - Projects made with Blynk - Blynk Community

Maker Portal · GitHub

Breathing LED Arduino : Circuit & Code

Breathing LED With Arduino Uno R3 : 5 Steps - Instructables

Super Starter Kit V3.0 for Arduino - RobotShop