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Published on Nov 30, 2023


Digital Fan Regulator project is developed for the users to control the operations of a fan using Microcontroller PIC 16F73.

It consists of a key pad, Display and microcontroller unit. The user can set the speed of the fan using key pad.

The user settings are displayed in the LCD display. According to the values set by the user, the microcontroller sends signal to the relay section through driver section.

Four relays are connected with a wire wound variable resistor. The fan is connected with the N/O of the relays.

The Microcontroller controls the driver section to operate the relays for the operation of the fan. By this way, the user can control the speed of the fan in digital manner