This mode can be used in the applications which requires the CPU to be working, as in PWM. Modem-sleep mode: In this mode, the CPU is operational and the Wi-Fi radios are disabled.Obviously, this is the most power consuming mode. Active mode: In this mode, whole chip is powered on and chip can receive, transmit the data.Here we will explain different sleep modes available in ESP8266 and demonstrate them by sending temperature data to Thingspeak server in a regular interval using the deep sleep mode.Įsp8266 module operates in the following modes: IoT Controlled LED using Google Firebase Console and ESP8266 NodeMCU.Sending Temperature and Humidity sensor data to Firebase Real-Time Database using NodeMCU ESP8266.Interfacing ESP8266 NodeMCU with Atmega16 Microcontroller to Send an Email.To learn more about ESP8266, you can check our IoT based projects using ESP826 Wi-Fi module, some of them are listed below: You can also read Minimizing Power Consumption in Microcontrollers, if you want to know more about power consumption techniques.ĮSP8266 modules are the most widely used Wi-Fi modules comes with many features in small size having different modes including sleep mode and these modes can be accessed using some modification in hardware and software. In sleeping mode, the connected hardware draws very less power and hence the battery can last long. We can write a firmware to make the hardware sleep when there is no exchange of data and perform the defined task in a particular interval. Not only this, developers can also Modify the Clock Frequency to Reduce Microcontroller Power Consumption. Sometimes we cannot optimize hardware components to reduce the Power consumption, but surely we can do it on software side by changing and optimizing code instructions and functions. The optimization can be done on hardware and software. There are several ways to optimize the power consumption in the embedded and IoT devices.
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