Circuits & Schematics Domestic: clock - 2

11. Talking Time and Temperature Display with the CCS C Compiler
    Circuits Measurement Domestic
    .. fun time putting this particular project together, and I hope you do too. This project shows how to build a talking clock with time temperature display + it includes several handy C functions you may find useful for other embedded ...
    30-10-2007

12. Versatile Digital Speedometer Uses Few Components
    Circuits Measurement Domestic
    .. and distance traveled, and displays the results on the LCD. One of IC1's internal timers, Timer0, increments after every N clock pulses. Distance traveled equals 2πR, where R is the wheel's radius. To calculate speed, IC1 divides the ...
    14-11-2007

13. One Second Timebase From Quartz Clocks
    Circuits Domestic Oscillators
    .. in china) after a while. The gears loses lubrication and the dust gets the job done. Fortunately, the electronics of the clock works for many years without problem, so you can hack a quartz clock to get a timebase generator. Here is the ...
    02-04-2008
14. Automatic Room Lights
    Circuits Domestic Light
    .. Thus green LED portion of bi-colour LED is lit momentarily. The same output is also coupled to IC3 for which it acts as a clock. With entry of each person IC3 output (high state) keeps advancing. At this stage transistor pair T3-T4 cannot ...
    01-07-2009
15. Infra Red Switch
    Circuits Domestic
    .. a bistable. Any version of the 7474 may be used, i.e. schottky 74LS74, high speed 74HCT74 etc. The input is applied to the clock pin, the inverted output fed back to the data input and clear and preset lines are tied to ground. For every ...
    30-01-2010
16. MakerBot Watch - portable Arduino environment
    Circuits Domestic MCU Open-Source Platforms Microcontrollers Usage Arduino
    .. lots of support #defines,MakerBotWatch.cpp source for MakerBotWatch class defintions,watch_test.pde test sketch for simple clock using MakerBotWatch class, MakerBotWatch_V1.1.h a slightly modified header file, MakerBotWatch_V1.1.cpp a ...
    23-12-2011

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