clock

Mini 7 Segment Clock V3

Mini 7-Segment Clock V3

While I waited for the Mini 7-Segment Clock v3 PCBs to arrive, I got to work on designing an enclosure. First, I exported the PCB from EAGLE to SketchUp. I then assembled a complete 3D model with all the necessary components. With the 3D model complete, I could then design an enclosure to house the […]

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PIC based WWVB clock Schematic

PIC based WWVB clock

Introduction There are many DIY versions of WWVB clock designs available on the web. Commercial “atomic” clocks are inexpensive and widely available, but I wanted to try my hand at designing one to gain insight into WWVB reception and to learn a little about programming a PIC microcontroller. My version is not the simplest available,

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DS1307 RTC Module

DS1307 RTC Module

The module based on DS1307, The DS1307 serial real-time clock (RTC) is a low-power, full binary-coded decimal (BCD) clock/calendar plus 56 bytes of NV SRAM. Address and data are transferred serially through an IĀ²C, bidirectional bus. The clock/calendar provides seconds, minutes, hours, day, date, month, and year information. The end of the month date is

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Digital clock ds1307 using PIC microcontroller

Digital clock ds1307 using PIC microcontroller

Step 1: COMPONENTS REQUIRED 6Ā components neededĀ : 1. MicrocontrollerĀ (I have used AT89S52-8051 family), any programmable microcontroller can be used. 2.7 segment display 3.Crystal oscillator (12MHz) 4.Capacitor (10uF, 33pF/22pF) 5.LEDs 6.resistances (330 Ohm) 7.buzzer (piezo) 8.push switches And I’m not including soldering iron, wire, flux….. electricity !!! help me out šŸ™‚ Step 2: Circuit Diagram Ā  This

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Rubidium Atomic Clock

Rubidium Atomic Clock

Introduction In the 1970s I worked for a while for the UK Atomic Energy Authority (UKAEA) at a site in Winfrith, Dorset. Amongst a lot of other interesting work, I used a gamma ray density gauge that amounted to a caesium-137 source, in its castle and collimator, the target (various), a sodium iodide detector (from

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230 VAC Timer

230 VAC Timer

Classic AC 230 V Timer project can be used in all application requiring a timer of up-to 3 Minutes to operate or control any AC mains load of up-to 200 Watts.Ā  This project is based on the Classic 555 Timer IC, triggering a TRIAC.Ā  Input and Output is Optically Isolated. Specifications Supply input 12 VDC

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A PIC based Alarm clock system

A PIC-based Alarm clock system

This project is aimed to design a ā€˜Sleep and Wake-up Assistantā€™. Different from a normal alarm clocks which can only make noise, this alarm clock is designed to wake up a person in a comfortable and effective way by involving sound, light stimulation, motion detection and vibration. The functions of this alarm system are: (

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PIC Based Oscilloscope Clock

PIC Based Oscilloscope Clock

For those are not into electronics, you must know that an oscilloscope has basically only one timebase to move the spot horizontally from left to right with the same intensity. The vertical deviation is function to the input voltage. You understand immediately that you can’t directly display 7 segment digits, because you can’t move the

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