DIY Light cum Room Freshener Module: Customizable Solutions

The DIY Light cum Room Freshener Module operates using a combination of timing control and power switching to automate both illumination and scent dispensing. At the heart of the timing circuit is the NE555 timer IC (IC1), which is supported by a network of resistors (R1-R3) and capacitors (C1-C4) to establish the operational timing intervals. This configuration allows the circuit to generate pulses or control states that determine when the system activates. To handle the heavier electrical load required by the mechanical components, the output of the NE555 timer drives an IRLZ44N or IRFZ44 power MOSFET (T1). The MOSFET acts as an electronic switch, allowing the low-power control signals from the timer IC to safely control the higher-current 12V DC motor with a gear combination (M1). The motor is responsible for the mechanical actuation of the room freshener spray mechanism. For user interaction and sensing, the circuit incorporates an SPDT switch (S2) to manage power states or modes, and a reed switch (S1) which can act as a magnetic trigger or limit sensor for the automated cycle. Illumination is provided by a 12V LED (LED1), which functions as a status indicator or ambient nightlight. The entire system is powered externally by a standard 12V DC adapter, supplying stable voltage to both the control logic and the power output stages.