Hello, I recently acquired this clock (photos attached), after googling around, i think it is some type of network synced clock.. It has a green plastic cover with a transparent front side, the cover has no buttons at all ( it s not a radio clock). the only input output are those 4 pins in the 4th photo. I think it can be a good project,  maybe box it in wood, but i have no idea how to make it work. can you help :)? thanks

Topic by Kreat0r   |  last reply

An interesting clock

Hello! I need a scheme for a fading clock. Please, has any body made something like this?  The idea - based on the fadenes on each number you can tell what time is it.  The GIF is very basic.

Topic by Thevilcins   |  last reply

ATTINY As A Clock?

Will using time library with an Attiny/45/85/84 ( ) create an accurate clock? I keep on seeing people using these external crystal things. Do I need one? Isn't millis pretty dang accurate? How would I sync the clock with real time?

Topic by HavocRC   |  last reply

CLOCKS!!! how to make a.... very powerful clock?

Hey, I'm new on here but realllyyy need some help in this as I have a limited technological background. Basically I have a project in which have two digital displays, each one displaying either the time, in minutes or the hour (two digits per display). Now what I want to do with these is effectively attach these on to the hands of an analogue clock, so that when the hands spin round, the time is displayed. For example when the minutes hand is at the quarter past mark, the display will read 15 and when the hour hand is at the bottom the other display will read 06. So I have the designs ready for this clock (including counterweights and whatnot) but I just need a very powerful clock movement, or gearing system that will enable me to turn a couple of heavy clock hands, I have seen online you can but high torque movements which at the moment is my best bet, but i cant imagine it will work very well to be honest. I would really appreciate any response or something to point in the right direction as I'm very open minded and if the issue is solved, I will be sure to put up instructions on how this clock was made. Thanks for reading. Josh

Question by joshblee23   |  last reply

Clock Projector to Projector? Answered

Could I like put an input (???) for like an iPod in and watch non-time?

Question by Warlrosity   |  last reply

alarm clock help?

Hey, i want to make an alarm clock that i can either wear or have it wireless. other info: headphones would be ok if the device is small enough i can stick it in a headband or somethong i dont really have any money to spend on on parts so re-purposed stuff is great no aduino please! (i dont have one) any advise would be great! thanx

Question by cheesewzrd   |  last reply

How was this clock made?

Hi everyone, I found this clock , the D/A clock by Alvin Aronson, and I am wondering if anyone knows how to make this clock or if anyone knows how he made it?;=1 cheers

Topic by ehfo 

The new "face" of clocks.

Two men in their bedroom, with time on their hands... Building clocks. An elegant, simple new design of clock is being produced by two entrepreneurs in a bedroom. The spiral face rotates, clockwise, every 12 hours, slowly winding a small ball up the coiled face.  At the twelfth hour, the ball drops into the centre of the face and back to the beginning. The clock is an art piece, costing hundred of pounds, but I bet you could build your own version from off-the-shelf parts or a recycled clock. After all, the prototype was knocked together from beer cans and gaffa tape... BBC video article. Aspiral website. Advertising video: Oddly philosophical video:

Topic by Kiteman   |  last reply

Help With Digital Clock !

It has been very long I am trying to make a layout for Digital clock, but I FAIL. I made the schematic but For Layout I Fail ! ! I fail in [b]Component Placing[/b] ! ! ! ! Please Can anybody make a layout for me software used : Eagle v5.3.0

Topic by ashirwad   |  last reply

spiral clock hands

I want to make a desk clock as a small project for myself. What I am looking to create is a slim clock with a spiral hour hand. The time would be told by graduated marks on the back-plate i.e. as the hour hand turns, the spiral increases and the correct hour is reached by the spiral, hard to explain, can't upload a photo as instructable server maintenance is under-way, hopefully I'll be able to upload the brief sketch I did in paint which might help!! What I am looking for is suggestions on a material which could be used for the hand, it needs to be thin so as to make it as easy as possible to tell the time and also strong enough not to distort under its own weight. Haven't decided whether it's going to be a normally incrementing spiral or a Fibonacci spiral (or similar logarithmic spiral)

Question by johnnie98765   |  last reply

Etch-a-Sketch clock

The Etch-a-Sketch gets a cool new hack with this clock that automatically draws in the time every minute and shakes it up in between. Slick.via Neatorama

Topic by fungus amungus   |  last reply

Hacking An Alarm Clock

My sister (yes, the one for whom I made earrings) wants me to modify an alarm clock to run a small electronic device when it goes off. Preliminary research has given me two methods:1) A digital clock with a 555 timer circuitIn this setup, a 555 timer circuit is used to translate the signal to an alarm speaker/piezo disk into a relay. When the clock goes off, the relay clicks, and any electrical device that is run through the relay has power.2) An analog clock with a transistor amplifierIn this version, the analog clock seems to just have a straight DC output to the alarm. The transistor is used to amplify the DC to drive the motor of a fire bell.Which of these would be easier to implement? The device I am supposed to use runs off of 3VDC, so I was just going to run the power line through the relay or through the transformer.

Topic by CameronSS   |  last reply

Digital clock hack

I've been trying to do more DIY stuff recently, so I figured I would start out with an easy project. Basically, I was wondering if it is possible to modify a standard digital clock so it could display different messages through an lcd display based on the current time. Since most clocks have an alarm feature, I thought this would be pretty easy to do, but then again I could be completely wrong. I know how to solder and such, so I shouldn't have too many technical problems if I get a push in the right direction. Also, I know how to do a bit of coding, and I'm good at adapting so I'm sure I could find out some way to make this work. Any help is much appreciated.

Topic by brickzima   |  last reply

Alarm clock mod

I took apart my alarm clock and took out the speaker and put in a headphone jack. Now it can wake me up and i was wondering if someone could help me figure out what the specific alarm electric thing looks like. I want it to be able to set off a motor that pulls off my sheets. I know absolutely nothing about circuit boards and things like that. any info would help. thanks

Topic by pizzadeliverykid   |  last reply

DIY clock panel

HI, I work for a church and we have a major problem of losing track of time, we've been looking at buying a large digital timer, but there expensive. Does anyone know how to build a panel that is pretty large (1'x3') that can be controlled, or start/stop/reset?

Topic by drew240   |  last reply

Making a chain clock...?

I asked recently about making one of these here Re-design gave me some useful advice as to what to use, sadly though, I have no idea where to begin. I know what a stepper motor does, but as far as to what stepper motor to use, where to get one, how to use/program a controller, how to power the motor, etc I have no idea. If somebody could give me some clues, or just point me towards another instructable that explains any of this I would be most grateful. Thanks for the help, Cook$

Question by cook$   |  last reply

Customized Alarm Clock

What I want to do is this, -get rid of my alarms stupid sounds -insert a custom sound -do it cheap -and make it small enough I can still put it in a custom casing (the casing is the easy part, I'll have no issue making that.) I have looked around and have seen several ways to hack alarm clocks but I can't see how any of them would help me out with this particular problem. The way I see it I will probably need to rewire the clock so that it sends power to an external device when the speakers are supposed to go off. The only other way I can think of is having a small computer with one of those pre-programmed clocks but that would be more expensive than buying the sound recording clocks and a bigger pain to fit into the casing. I also think I heard someone talk about making homemade circuits, I don't know if that would work at all but it's worth mentioning. I would like to be able to find easy to follow instructions that are CLEAR and not super complicated. Any help would be appreciated! BTW, yes, I have looked at the sound recording clocks online and they all look like crap or are way to expensive to bother with. 

Topic by cward5 

Shock alarm clock

Hi,  I want to build a Alarm that will shock you when the clock hits a certain time i am new to this could someone help me out ?!

Topic by josephwilmott2   |  last reply

If you increase the voltage to a clock, will the clock tick faster? Answered

Pretty much that, will it tick faster, slower(?), backwards(!), blow the clock, do nothing, make tim-tams?

Question by munchman   |  last reply

i want to make alaram clock,which play mp3 song form memorycard?

I want to make alaram clock,which play mp3 song..plz help me,how to make it

Question by scientistmanoj   |  last reply

Has anyone built their own old school "Aurora Clock", or know how?

My Dad and I have been interested in building our version of this clock. We got as far as it uses the property of birefringence and pieces of birefringent plastic or polarized filters to create the different colors, but we never got anywhere with testing. Anyone know the specific materials it uses or the best way to go about building one?

Question by shmolky   |  last reply

Arduino alarm on mechanical clock

I am new to arduino and I am trying to hook a mechanical wooden gear clock to trigger an alarm or chime when the clock hands hit 12. Does anyone know how I can go about this or any tutorial/instructable that does this or something similar?

Topic by zippystix   |  last reply

Hacking a projector alarm clock?

I have small projection alarm clock that projects time and temparature on the wall powered by a small LED. The light emited by that LED is small and hence the image is also lightly visible. I wanted to hack this one and put a high powered LED to get a brighter image on the wall . What can be done?.?

Question by chicagopooldude   |  last reply

L.E.D. Wall clock idea

I saw this clock design the other day. It was a circle with the clock hands in the middle and unattacked to the clock there were dots around it to mark the hours. I want to improve this design by making the hour dots light up on their respective time for the whole hour. Maybe make them have a nice dimming transicion between the hour switch at the last second. I don't know much about programming L.E.D.s or what hardware I would need. Can somebody help me how to make this project?

Topic by rabril 

Kinetic ball clock DYI? Answered

Anyone see a tutorial on how to make a clock like this one? I know I can just buy the thing but I wanna make it on a larger scale. And I don't have one to observe and to reverse-engineer :(?

Question by Crazy Electrum   |  last reply

fake nixie tube clock

I was wondering is I could use the same system of using a 7 segment display to wire up a digital clock using el wire since nixie tubes are so much more expensive and limited to small size, or if i should wire it so that it is like a singular l.e.d.  and where could i get smaller metal chicken wire fencing to further increase the nixie tube effect. Sorry for the bad grammar when I get an idea I tend to lack the proper way to describe it even though I can see it plain as day in my head

Topic by general-Insano   |  last reply

What is this thing? A counter? A clock? Answered

So I was taking apart something, and found this odd-looking thing I just cant figure out what it is though. I tried looking up a part number, but it doesnt have one, it just says 2222 8403 on the back. It has 6 pins, and a dial on the front that can turn from 0 - 9. And sorry about the camera, its not a very good one.

Question by 101yummYYummy101   |  last reply

Arduino LED Clock RGB?

This is probably too big of a project for a first timer.I do not own a Arduino but plan to get one in the next few weeks or so or whenever Make releases the Getting started with Arduino KIT Again. I'm planing my project so that I can work on it with the fewest problems. I had the idea from 5volts fire extinguisher striking clock. My question is that is there a way that I can use RGB LEDs? I just wanted to use RGB LEDs instead of 7 segment displays but use the same layout and have a nice color fade with the time. Look for his schematic and code.The schematic shows a easy way to hook up a 7 segment display to an Arduino. I'm just not sure how to control another color. I was thinking maybe 3 BU2090's going from pins 12 an 13 and using the Arduino to control the power going to them. 5volt suggested triple multiplexing but I'm not too sure on how to do that. Also I'm not sure on common anode or common cathode LEDs?(I don't want to use 54 of each color.)As for clock face I was thinking like in the picture. 2 LEDs per segment, 8 for the colon. That is a 24"x12" box using 10mm LEDs. Center to center LED height is 7.125"Any help would be appreciated I have hit a snag trying to figure this out.

Topic by Rob K 

how to make digital clock?

I want make project of digital i want the circuit of digital clock and related material ?

Question by    |  last reply

Is there an way to display an clock with RetroPie?

Hi,I want to build an arcade.I want to use RetroPie.But is there an way to display the clock and weather after an period of time of inactivity? Sorry for bad english.

Question by AnghelutaA   |  last reply

4017 clock enable not working? Answered

Hi. I have a 4017 chip taking clock inputs from a de-bounce switch circuit. I have been trying to get the first two outputs on, one after another, with the second of these o-p's putting pin 13 (clock enable) high which I thought freezes the chip in effect. However this doesn't seem to be happening with my circuit. I know everything is in the right place. Reset is held low, I have one led on pin 2 and one on pin 4, both with appropriate resistors. I had the clock enable on o-p 4 and that worked. I repeatedly pressed the button and the led's didn't come on. But with clock enable on o-p 3, I presses the button and the first led came on after about 9 presses.  If someone could give me some pointers it would be greatly appreciated.  Many thanks 

Question by LED Maestro   |  last reply

Make alarm clock louder

I am an incredibly heavy sleeper, and looking for a way to make my alarm clock loud enough to wake the dead.t is not a clock radio; it plays a recorded message. It is 110v AC. It does not have a line out - I tried to add one and plug in amplified speakers, but no luck. I'm capable of soldering but have no idea how to make this happen. I'm stuck on using this alarm because I can record people yelling at me.Thanks! PS I have tried four alarms at once tuned to odious stations, light timers, things that beep, etc.

Question by brandegor   |  last reply


Ok, so I'm currently playing with the idea of making a "feedback clock". Except 1 to 12 is now replaced with 12 speakers, and only having one the hand which would have a microphone attached to the end of the arms. For the rotation of the arm, a geared DC motor. The problem I have is in the construction of this mechanism, so any help or thoughts would be welcomed. My original thought is constructing an amplifier with 12 outputs and 1 input. The input being a receiver, transmission coming from from the microphones attached to end of the arms. OR would it be possible to make individual smaller amps for each speaker and split take the signal from the receiver in to each amp? If I was to do a multi-channel out put amp, does anyone know what circuit design I would be looking at? 

Topic by Harol Erreip   |  last reply

Nixie tube clocks for sale?

My friend and I are trying to make money by making and selling things. I think that nixie tube clocks would be a good thing to make and sell, because the retro look makes them very popular and sellable. If we were to sell them though, we would need to know several things. Would it be better to sell them fully assembled or in kits (or possibly both). What about enclosures? I am thinking a nice wood box would go with the retro look nicely. What is the best tube to use? I'm thinking the IN-12 or the IN-4. I'm thinking, taking into account what I estimate the total costs for materials would be, we would need to sell them for a price in the vicinity of $70. Does that sound reasonable? Lastly, how should we sell them? We could use ebay, though I don't know a whole lot about the process to becoming an ebay seller, we could use craig's list, but that seems to be more local, or we could have potential buyers email us, send payment and then we send the product (but nobody seems to trust anyone these days so I'm not sure that would work). Please tell me your opinions on these things. Thanks.

Question by Higgs Boson   |  last reply

How can I control an arduino by a clock?

Can I have a clock which sends a single clock signal at required intervals of time and I also need to change the time of the clock frequently simultaneously

Question by alendchristin   |  last reply

How can I wire a lamp to a digital clock?

I'm trying to make a clock/lamp to conserve outlet space. How can I wire the lamp to a digital clock? Is this even possible?  I want to take a digital clock and wire it to the lamp then mount the lamp and clock inside a fixture made of Plexiglas or wood.  This is sort of an experiment. 

Question by absaul   |  last reply

change rotation speed | standard clock part

Hi all is there an easy way to speed up a standard clock module part (please see attached JPG picture). - would like it to turn 3 times faster. - can add any extra external circuit - can increase the voltage i.e. 2 x AA instead of one i know v. little about electronics. Also important to know how this will affect the power consumption.... thanks

Question by oem_odm   |  last reply

Clock signal from Arduino crystal input pins? Answered

I'm interfacing an Arduino to a chip that needs a 1 MHz clock signal. Can I take one of the Arduino's clock input pins an input it into a 74169 (4 bit cascading counter) to generate a 1 MHz signal?  If not how do I create a 1 MHz 50% duty cycle signal?  Thanks in advance.

Question by maewert   |  last reply

how to code on NEO PIXEL 60 LED CLOCK Answered

Please help me to make neo pixel clock. compenent  I am useing    1)    Arduino Nano,  DS 3231, LDR and ws 2812b  ring 60 led Please help me in coading

Question by binods7   |  last reply

What can i do with a MOSHI talking alarm clock?

I have a MOSHI alarm clock and it talks if i were to take it apart whatcould I do with it?

Question by supercoolbuilder3321   |  last reply

Turning AM/FM clock radio into just a radio?

Hey guys, I'm new to this forum and couldn't quite find the answer to my question.  I have a cheapo AM/FM clock radio and thought it would be a fun Sunday afternoon project to turn it into just a radio.  I don't need the clock/alarm function anymore (I use my phone) and my dog likes to have some noise around when I'm not home (TV is an option, but I hate leaving the screen on all day).  Currently, the radio only turns on when the clock is triggered by the set alarm time...and it only plays for a max of 60 minutes.   Should be easy, right?  I opened the clock and couldn't quite figure out what I'm looking at...

Topic by Alischon   |  last reply

How To Use the Alarm from an Alarm Clock in Something Else?

I wanted to make an alarm type thingy, ad I want to use the alarm from an alarm clock. I don't know how though, I tried connecting a cell to the wires that were already on the alarm, but it won't work. I think it's one of those piezo-electric crystal thingies. And I know I have to have pressure on it to work. How exactly would I use it?

Topic by Aeshir   |  last reply

Binary Arduino Alarm Clock HELP!

I am currently working on THIS INSTRUCTABLE: I have had to modify the libraries to work with IDE 1.0 and newer because this was written 5 years ago. I'm using a push button momentary switch instead of the capacitive sensor for the snooze button. I've got everything working except for the Alarm/snooze. For some reason, the speaker is constantly beeping a high, then low tone, as though the snooze button is being held down, even when I completely disconnect the snooze button from the clock. Can anyone give me any ideas how to fix this problem? Here is my modified button code: void update_buttons_state() {   hour_button_state    = digitalRead(hour_button_pin);   minute_button_state  = digitalRead(minute_button_pin);   setTime_button_state = digitalRead(setTime_button_pin);   setAlarm_button_state = digitalRead(setAlarm_button_pin);   snooze_button_state = digitalRead(snooze_button);     } // "INTERNAL" VARIABLES FOR BUTTONS FUNCTION: boolean first_time_hour = true;   // these are used to make sure that the hours boolean first_time_minute = true; // and minutes only is increased once every keypress. unsigned long snooze_button_timer; // used to keep track of how long the snooze button has                                    // been held down. when the button has been held down                                    // a certain amount of time, the alarm will be turned                                    // of completely. void buttons() {   // LOW == button pressed   // HIGH == button released   // (this is because pullup resistors is used)     // Decide if we should set time or alarm:   // (this also makes the display show the alarm time)   if(setAlarm_button_state==LOW) // LOW = Set time   {     hours_p = &alarm;_hours;     minutes_p = &alarm;_minutes;   } else if(setTime_button_state==LOW) // LOW = Set Alarm   {     hours_p = &hours;     minutes_p = &minutes;   }   // If hour button is pressed, increase hours:   if(hour_button_state==LOW && first_time_hour) // only increase the hours once   {                                             // every button press.     if(*hours_p < 23)       (*hours_p)++;     else       *hours_p = 0;         first_time_hour = false;          }   else if(hour_button_state==HIGH)   {     first_time_hour = true; // reset when button is released,   }                         // so that the next press will be registerd.     // If minute button is pressed, increase minutes:   if(minute_button_state==LOW && first_time_minute) // only increase the minutes   {                                                 // once every button press.     if(*minutes_p < 59)       (*minutes_p)++;     else       *minutes_p = 0;           first_time_minute = false;   }   else if(minute_button_state==HIGH)   {     first_time_minute = true; // reset when button is released,   }                           // so that the next press will be registerd.     if(snooze_button_state==LOW)   {     if(signal_on)     {       // set the time when the alarm signal will start again,       // this will give 10 minutes snooze:       if(minutes<50)       {         snooze_off_minutes = minutes+10;         snooze_off_hours = hours;       }       else       {         snooze_off_minutes = minutes - 50;         snooze_off_hours = hours + 1;       }       snooze_on = true;       signal_on = false;     }     // if the snooze button has been held down for more than 3 seconds turn off/on the alarm     if((millis() - snooze_button_timer) > 5000)     {       if(alarm_on) // if on, turn off       {         signal_on = false;         alarm_on = false;         snooze_on = false;         // play tone so the user know the alarm turned off:, 100);       }       else if(alarm_on==false) // if off, turn on       {         alarm_on = true;         // play tone so the user know the alarm turned off:, 100);       }       //reset the snooze button timer       snooze_button_timer=millis();     }       }   else   {     //reset the snooze button timer     snooze_button_timer=millis();   } }

Topic by holidayv 

Long-running clockwork sculpture

The craftsmanship that went into building this clock is really spectacular! Everything was designed by the artist, from the movement to the machining of components.The woodwork is oak and the brass imagery was acid-etched.

Topic by zazenergy   |  last reply

Any easy way to hack a projection alarm cock (led to ceiling) so that I can turn the projector on/off with a remote?

I assume the clock has the ability to turn the projector on/off.  How hard would it be to hack in a remote control for this feature?  (they dont seem to sell anything like this.)

Question by 9zpvwz   |  last reply

Help with LED's

Hi everyone - this is my first post so bear with me i'm looking to create my own instructable in the form of a clock but need a little help. I want to create an LED backlit analogue clock (so just the face lights up) but i want it so that the backlight only comes on between certain times (essentially during the hours of darkness) with the ability to change the times the light comes on and goes off. I'm pretty new to electronics so don't really know where to start with this one but if anyone could give me any tips / pointers on how this could be done i'd be most grateful cheers in advance :o)

Topic by ochoellis   |  last reply