Solving a smoke alarm problem

Here are the Primary parts used in this video:
► Oled display: https://amzn.to/3Qn4otx (Amazon)
► Capacitive buttons: https://amzn.to/3MaxqtF (Amazon)
► Arduino nano: https://amzn.to/45BBzgY (Amazon)

Support me for more videos: https://patreon.com/ElectronicLab

Background Music song#1 :
► Track: K-391 - Summertime (Sunshine) [NSC Release]
► Music provided by: @NSC
► Watch: https: //www.youtube.com/watch?v=NWc1VaRMqLM

Background Music song#2 :
► Track: Tobu - Candyland [NCS Release]
► Music provided by: @NoCopyrightSounds
► Watch: https: //www.youtube.com/watch?v=IIrCDAV3EgI

Background Music song#3 :
► Track: Tobu - Hope [NCS Release]
► Music provided by: @NoCopyrightSounds
► Watch: https: //www.youtube.com/watch?v=EP625xQIGzs