The concept presents itself remarkably simple, and utilizes an IC 555 dependent monostable multivibrator stage together with an LDR sensor.
This laser door alarm is based on the interruption of Laser beam. A low cost Laser pointer is used as the source of light beam. When somebody breaks the
The current controlled circuit of a laser pointer power supply explained in the following post was requested by Mr. Steven Chiverton
Security is a primary concern of offices, homes, and other workplaces. For this reason, there is an assortment of security alarms
Laser Welding Machine Hand-held Type Desk Type Portable Type Robot Arm Type
A Laser Diode driver circuit is a circuit which is used to limit the current and then supplies to the Laser Diode, so it can work properly.
OSRAM PL-TB450 1400mW 1.4W 445/447/450nm blue laser diode cheap! - OSRAM PL-TB450 1400mW 1.4W 445/447/450nm blue laser diode cheap! Specifications‘ Place of production: German
Converting an Inkjet Printer to Print PCBs: SEE STEP 12 FOR NEW RESULTS AND AN ETCHING/PROJECT UPDATE! Recently one of my focuses has been to find a way to make the PCB (Printed Circuit Board) creation process easier. I like being able to design something based on what I want in a circuit an…
Modification of the Lexmark E260 for Direct Laser Printing of Printed Circuit Boards - MCU Version: This version is now obsolete. The current version is located Here. For the latest changes, additions and errata see step 13 This is the second version of my E260 modification. It uses an ATtiny13 MCU to control the timing of the printer and make it…
The Laser Etched Recycled Circuit Board Clock is made from a recycled circuit board, and it features a clock face with no numbers, instead they have been replaced by a variety of schematic and logic symbols.
Как сделать индикатор уровня без транзисторов, без микросхем и без платы своими руками
Comparison of Red and Green Laser Pointer Complexity
HP 6L laser printer power supply circuit
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This article shows basic circuit ideas for pulsing low power visible semiconductor lasers using inexpensive components which are fairly readily available. First of all, you need to know that this is a very belated sequel […]
Powerful Burning Laser: Hello today im going to show you how to make a powerful burning laser from DVD-RW, before we begin I must caution that its very powerful thing and can seriously damage your eyes, be careful.
Shadow detector alarm circuit with two LDRs This circuit detects if there is a difference of lighting between two LDRs, and sends an audible and visual warning. Circuits that use two LDRs are more reliable than those that use only one.
This is a circuit for a long range IR transmitter that uses three IR LEDs in series to increase the power of IR signal generated.
Laser Pointer is a hand held device that consists of laser diode which emits a ray of laser beam. Know about steps to make a laser pointer with applications
