DS1302 Real Time LCD Clock Circuit - 16F88

Clock Schematic This clock use DS1302 as timekeeping chip and this was my first time I used this IC for my project. It used three wires for communication. It communicates with a microprocessor via a simple serial interface. Three wires are required to communicate with the clock/RAM: CE, I/O (data line), and SCLK (serial clock). The real-time clock/calendar provides seconds, minutes, hours, day, date, month, and year information. The DS1302 will...

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Seven Segment Simple Digital Clock Circuit - 16F628

Clock Schematic This is a very simple clock circuit. The only IC used in this circuit was 16F628A pic micro-controller. This IC is very cheap and you can get it from any electronic spare parts shop. Four common cathode seven segment displays used to display time. We cannot get much accurate time using this. However, we can able to get reasonable accurate if we calibrate this circuit correctly. You can calibrate this clock by changing value of...

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Common Remote Control Receiver Circuit (RC5 SIRC NEC) - 16F683

General Remote Controller The cheapest way to remotely control a device within a visible range is via Infrared light. Almost all audio and video equipment can be controlled this way nowadays. Due to this wide spread use the required components are quite cheap, thus making it ideal for us hobbyists to use IR control for our own projects. If you ever want to open your gate or run any other device via remote controller you can use this circuit...

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7 Band Real Time Audio Spectrum Analizer Circuit - 16F818 BA3834 MSGEQ7

Audio Spectrum Analyzer Spectrum analyzers are built in most of the modern signal processing systems for measuring the distribution of signal energy in frequency. An audio spectrum analyzer is used for measurements in the audible frequency spectrum (from 20Hz to 20 kHz) and can be a very powerful tool for keeping a studio well tuned. A Digital, real-time Audio Frequency Spectrum analyzer circuit for audio devices is presented in this project....

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DS1307 Real Time Seven Segment Alarm Clock Circuit - 16F88

Updates 31/01/2016 - Added: Hourly chime restriction function 27/10/2019 - Fixed: Hourly chime delay error (v3) 27/10/2019 - Fixed: Auto mode data showing time increased (v3) Alarm Clock This is the newest clock I made using DS1307 real time clock IC. Not like other clock circuits I posted, this clock circuit built in all necessary function such as hourly chime, alarm, time drift correction, etc. In addition, it also include temperature...

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