Large 7-Segment Clock, Part I

I was extremely satisfied (and proud) of the way that the enclosure turned out for the rework of my 7490 Clock. The electronics on the other hand, is another story. Since it was one of the first things I ever built, I decided to put it in an enclosure of its own and consider it too as a finished product. The problem was that the prototype never ran properly. It worked, just not as well as it should. Needles ...

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New Product – VFD Modular Clock IV-18 SMT

We showed a demo of this clock at Maker Faire Tokyo 2014 and it is now available in our online shop! VFD Modular Clock IV-18 SMT edition is a special solder-free kit version of the original VFD Modular Clock . The kit comes with all electronics pre-soldered, but you still assemble the enclosure yourself. Features: IV-18 8-digit Russian VFD Display Tube Open source mbed based firmware LPC1347 ARM Cortex-M3 6 ...

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Solar-Oriented, Arduino-Powered Clock

This is a clock designed to keep accurate time (independent of atomic or GPS), display local sunrise, sunset and solar noon, and also adjust itself for daylight savings time. I wanted the clock to be easy to use and be flexible. The setting functions are menu-driven, you set each parameter one digit at a time (with live data validation) and you can abandon changes if you want. You can have 12 or 24-hour tim ...

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Binary metric clock using Arduino

This is a very odd kind of clock, which can easily be made with simple supplies. To begin the explanation, I would like to say that I have always wanted time to be metric. 5 o'clock would be mid-day, 7:5 would be three quarters (6:00 pm), and so on. This prototype tells deci-days, centi-days, and milli-days, in that order. For those that are unfamiliar, ten deci-days are in a day, ten centi-days are in a de ...

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Hard Disk Clock (HDD Clock with Arduino Uno)

This is a fun project that can be done easily and also cheaply. In this instructable we will explain step by step how to make this beautiful POV clock. Used material: Arduino Uno, RTC modul, ULN 2003, IR diode and IR transistor (used like a sensor, more details in next steps) 4 pushbuttons (for controling the clock) TSOP4838 (allows us to control the clock with remote controler) Temperature sensor (DS18B20) ...

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Arduino Clock using Standard Clock Display

This is a relatively simple clock to build, in terms of the hardware required and in terms of hooking up all the wires. The complexity lies in the software, which I've conveniently included as part of this instructable :) This instructable illustrates a few things: * Keeping relatively accurate time on an Arduino without using a real time clock (RTC) * Using a basic clock display - the type you see on most ...

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Make an Atom Synchronised Clock from a 1950’s Slave Dial using Arduino

One day while exploring the bric-a-brac at the markets, I stumbled across an old, Bakelite slave dial from the 1950's. Slave Dials are clock movements without the actual time keeping circuit. All they contain is the mechanism to drive the hour and minute hands, which can be advanced by an electric pulse. This pulse is sent by a centralised master time-keeping mechanism. They were often used railway stations ...

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GPS Clock Assembly, Part III

Pinoco was hit with the holiday rush, so it took a few extra weeks to get my new batch of laser cut acrylic. I nailed it this time. Right away I could tell the engraving was perfect. I even spaced out the holes for the speaker just a hair. The holes on the last one were so close together, that they weren't separated by more than a hair of plastic. The arrows came out great too. I contemplated spray painting ...

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Single digit numitron clock

Numitrons are neat display devices similar to nixie tubes but designed for much lower voltages. Numitrons are basically incandescent displays in which filaments create the segments. They have a retro look that i liked so much. I bought 6x IV-9 russian numitrons in ebay, they were about 3$ each, they're pretty cheap! At that time i didn't know what to do with them, but then i thought about a clock. Using sof ...

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PIC Digital Thermometer and Clock

Here you will find complete construction details including circuit diagrams, PCB layouts and PIC firmware (and the source code). The code was written in Proton PIC BASIC but the good news is that there is now a free version of this compiler available for download; AMICUS18. ** UPDATED 30th June 2016 ** There is an update to this project available that replaces the inferior DS1302 RTC with a much more accura ...

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Oscillators: How to generate a precise clock source

our modern era, digital logic has become the core of all the electronics circuits either in the form of an FPGA, microcontroller, microprocessor, or discreet logic. Digital systems use many components that must be interconnected to perform the required functions.  The vital element for proper operation of such a digital system is a CLOCK signal that enables all these digital components to communicate and es ...

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Tutorial 16: Arduino Clock

In this tutorial, the Arduino displays the time and date on a LCD (optional) and in the Arduino IDE serial monitor window. A PCF8563 real time clock (RTC) IC is used to generate the time and date. The time and date can be set using the Arduino serial monitor window. An optional battery can be used to back up the time and date settings in the real time clock chip so that the time and date are not lost if the ...

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