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LED Night Lamp with Power-On Reminder

Name: LED Night Lamp with Power-On Reminder
Availability: InStock
Rating: 5.0 (3 reviews)

Available:In Stock

Product SKU: LGKT128

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₹ 449 ~~₹ 549~~

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Highlights

Product Code: LGKT128
Technical Support: upto 30mins Video support
Handmade
Make in India

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DO IT YOURSELF KIT

READY TO USE KIT

Details

Unsoldered PCB and all components to be soldered on PCB.
Includes all ICs, Connecting wires , Buzzer & LDR.
Documentation: PCB Specifications Component list, and Circuit diagram.
Power Supply: No battery included, Includes 12 Volt DC adapter with the kit.
Video tutorial is available on YouTube.

One set of the readymade in working condition.
Includes all ICs, Connecting wires ,Buzzer & LDR.
Documentation: PCB Specifications Component list and Circuit diagram.
Power Supply: No battery included, Includes 12 Volt DC adapter with the kit.
Video tutorial is available on YouTube.

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Specification

Description

The LED Night Lamp Kit is get damaged due to overheating. Here is an add-on device for the workbench power supply that reminds you of the power-on status of the connected devices every hour or so by sounding a buzzer for around 20 seconds. It also has a white LED that provides good enough light to locate objects when the main fails.

This Power-On Reminder Night Lamp Circuit IC NE555 is wired as an astable multi-vibrator, whose time period is set to around six minutes using resistors, preset for sounding the buzzer every hour. The output of IC 555 is fed to the clock input of IC CD4017. When power to the circuit is switched on, pin 3 of IC CD4017 goes high. After around one hour, its output pin 11 goes high and the buzzer sounds. This cycle repeats until the two NPN transistors. The LDR offers very high resistance in darkness.