Battery is the most important component for any device as it powers the whole system. And it is important to monitor the voltage level of the battery as improper charging and discharging of a lithium battery may lead to a big safety issue.
Facebook is one of the most widely used social media application, it is not only used for social networking but also for messaging, video calls, voice calls, market place etc. These features of Facebook can be really helpful in building any IoT based project.
IFTTT is an IoT Platform provide us a free-web based service, helps in connecting different apps and devices with each other. Here, we are using ESP32 Wi-Fi module which delivers advance features for IoT projects.