![]() There are still many applications out there that requires operation with relative to our local time. Update the Wi-Fi credentials to ESP8266 through OTA. Install and set up Blynk IoT App in mobile. Create a template for ESP8266 in Blynk IoT Cloud. You can use time function to rotate the Solar Tracking System without the need of local photo sensors. In this Blynk 2.0 tutorial video, I have covered the following steps in detail. Second example would be adding the time function code with an energy meter so that it can provide extra information such as daily / monthly or yearly energy consumption. ![]() ![]() The first example would be Smart Home Automation which tells the NodeMCU to turn off or turn ON certain loads at a very specific time such as 7:30pm everyday. There are so many practical application related to our time. However, once we take out or replace the battery, the memory will be lost and we need to re-upload the code to the NodeMCU to let the RTC module read from the PC and Laptop again. It will have its own memory storage and battery to store the time memory for few years. The RTC module normally will get time from our PC or laptop during the uploading program to the board. For example, we can command the NodeMCU to turn ON Lights every 3 hours but the timing for operation is relatively to its startup time which is not dependent to our local or clock time.īy default the Arduino and NodeMCU does not know what is our time now unless we add a Real Time Clock (RTC) module to it. During programming, most of the time we do action by duration counting and comparison but not related with our local clock timing. Every micro controller has a built in duration counter to count time lapse during the board start up. this is a walk through on how to setup a esp8266 as a 4-zone sprinkler that works with smart things.Smartthings community link. TIME relativity is a very important parameter for action accuracy.
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