cause it is cheap and easily available through the electronic components stores
If you haven't noticed pin 2 is sensitive to 50ua you can us that practically from anywhere to switch states
The timer has to be multi-pole. The ballast must be connected to the load contacts of the timer. If the timer is a 120 Volt timer, the timer has to run on a 120V. circuit. Loads are loads, and as long as you have a multi-load timer you can hook up whatever you want. If the timer only works on a shared power source (load shares the timer supply) you will need to use a contactor on the load side or the timer.
8-pin 555 timer IC
A: this chip is defined as a timer but it can be used for other reasons and applications.
A licensed electrician can install a timer on your light.
One timer is an alarm clock and the second is an hourglass.
Set a timer for a bright light to turn on simultaneously with your alarm.
This times has a simple alarm that can be set to ring after a certain amount of time has passed.
The Emerson Dual-Alarm AM/FM Clock Radio with Nap Timer does exactly that.
Zen alarm clocks are often made from nice wood and in a Pyramid shape. The benefits of Zen Alarm Clocks is that they have a countdown timer included which is useful for meditation or yoga.
Once the alarm goes off - and you press the snooze button, it starts an internal timer for a given period (usually 6-10 minutes depending on the manufacturer). Once the internal timer reaches zero, the alarm is triggered again and the snooze timer resets to its original period. You can usually hit the snooze button indefinitely, but to silence the alarm for good, you need to switch the alarm off.
it's the hour timer. I had the same problem last month. go into your settings and uncheck the hour timer reminder.
This Dummy Alarm project makes an LED flash briefly once every 5 seconds to imitate the indicator light of a real alarm. The circuit is designed to use very little current to prolong battery life so that it can be left on permanently. An on/off switch is not included, but could be added if you wish.The 7555 timer IC used is a low power version of the standard 555 timer. A 'superbright' red LED is used because this provides a bright flash with a low current. The LED is off for most of the time so the average total current for the circuit is less than 0.2mA. With this very low current a set of 3 alkaline AA cells should last for several months, maybe as long as a year.The circuit will work with a standard 555 timer IC (such as the popular NE555) but this will increase the average current to about 2mA and the battery life will be much shorter. You can use a greater supply voltage (15V maximum) for this circuit but the 1k resistor for the LED should be increased to keep the LED current low at about 3mA. For example to use a 9V PP3 battery change the 1k resistor to 3k3. Note that AA cells will last longer than a 9V PP3 battery.This project uses a 555 astable circuit.
easy and cheap project is like if you make some sensors and switches to inputs of micro controllers and put some LEDS and Alarm on output pins. write some code like if any input is high output will go high. mean it work like. if any switch or sensor gives high volt the Alarm or LED will glow. or if you wanna make your project more effective. u can add timer in code.. like it gets off with after some time or it sensor 1 is high and if sensor 2 dosent go high alarm should go high. mainly simple switch detector is cheap and very easy project.
You can use the D&D icon that looks like a clock, or you can use this command in GML: alarm[argument0] = argument1; argument0 = alarm you want to set. argument1 = how long it will take before the alarm will go off.
The all clad timer comes with an easy to read display. in timer mode it shows a count up display as well as the time of day. There also is a warning ring before the alarm sounds.
Good alarming and timer application:) There seems to be a lack of them.