IoT Based AC Fan Speed Control Using Smart Phone with NodeMCU

circuitdigest

Topics: fan, app, IoT ESP, Network Tech 

Transcript Excerpt:A sensor will be mounted on the liquid line of the condenser where its temperature is used to control the speed of the fan. By regulating the speed, the head pressure will not drop too low hence the heat pump will still be able to operate in cooling mode even though the outdoor ambient temperature is low. With an IoT-enabled fan, one can manage speed, modes, timer, integrated lighting and much more. To top it all, experts also have IoT app enabled fans in the market that are compatible with voice assistants such as Google Assistant and Alexa, which takes convenience to the next level. users can increase or decrease the blower speed by slightly adjusting the pulley on the blower drive motor. To increase blower speed, slightly loosen the setscrew that holds the pulley to the driveshaft. Move or turn the pulley clockwise on the shaft one turn, then tighten setscrew. The proper way to control dimming 230v AC is through phase control with a Triac: the Triac then is fully opened, but only during a part of the sinus AC wave. But controlling an AC load is not as easy as controlling a DC load. The electronics circuit for both these app is different Here is the GP zero pull down button, which activates programming mode on the asp, and here is the excellent zero crossing detection circuit. To prevent electrocution while working on the low voltage side, this section is optically isolated. There is also a snubber circuit, and this is where the load is connected as users can see it right now. In the code, include the library for ESP WiFi and dashboard. Then set the SSID and password of users WiFi network. After this, create a setup function where users can start the serial port and set the baud rate. This is followed by initialising the pin mode for the LED using which users can control the light brightness (that is optically coupled with the AC circuit). This app allows users to change the brightness of the bulb, which affects the fan speed as seen right here, by adjusting the slider. The bulb can also be turned off completely by adjusting the slider, as seen in this example. To top it all, experts also have IoT enabled in the market that are compatible with voice assistants such as Google Assistant and Alexa, which takes convenience to the next level. 

Share:

Tutorial Video: How to create an RFID Attendance System

Inventory Management for Successful Business