For the project I used this KeeYees kit that can be purchased at this link: https://www.amazon.it/KeeYees-GY-BME280-Atmosferica-Temperatura-Breadboard/dp/B07T2H5QXC ...
The HeartBeat library offers a simple heart beat by sending pulses to a digital pin. Typical usage is to blink a (built in) LED as indicator a program is running (alive). Besides a LED other devices ...