The build: → ELEGOO UNO R3 → Arduino IDE for the firmware → Optical pulse sensor reading PPG (Photoplethysmography) off a fingertip → 16x2 LCD (I2C) to show live BPM → LEDs to indicate safe vs. unsafe ...
Linode Guides & Tutorials Linode API Guides Linode Marketplace Self-Hosting the vaultwarden Password Manager Linode Cloud Community Linode Developer Portal Linode Content Resources Linode Tools Linode ...