Category: Timer
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 I²C, bidirectional bus. The clock/calendar provides seconds, minutes,...
Continue ReadingOpenSource Arduino OLED Clock with temperature measurement
Konstantin Dimitrov has published his Arduino OLED clock which uses DS1307 real time clock module and TMP102 temperature sensor that communicate through I2C. This clock will not only show you exact time and date but also it will show you the ambient temperature in both Fahrenheit...
Continue ReadingMSP430 VFD Clock
Daniel Johnson @ danielelectronics.com has build a VFD Tube Clock based on MSP430 microcontroller and explains it's code. I wanted to do a follow-up to my last clock build, the MSP430 Analog Gauge Clock, reusing some of the code from that project, and I had an IV-18 vacuum...
Continue ReadingPower ON Delay Switch
Power-ON Delay Switch which can be used in all applications requiring a delay during power-on from 1 to 60 seconds. Specifications Supply input 5 VDC Relay output SPDT relay Relay specification 5 A @ 250 VAC Preset adjustable range function Power-On LED...
Continue Reading230 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. This project is based on the Classic 555 Timer IC, triggering a TRIAC. Input and Output is Optically...
Continue ReadingOvenized crystal oscillator frequency stability
E. Schrama @ ejo60.wordpress.com uses an Arduino and a DCF77 time signal receiver to test the stability of an ovenized crystal oscillator running at 1 MHz. In this experiment I will use an Arduino and a DCF77 time signal radio receiver to measure the stability of an ovenized crystal...
Continue Reading8T49NS010 Clock Synthesizer and Fanout Buffer/Divider
This reference design features the 8T49NS010 integrated circuit that functions as a clock synthesizer with a built-in fanout buffer and divider. By using an external clock source or a crystal, the 8T49NS010 can generate high performance timing geared towards the communications and...
Continue ReadingPCI-Express Clock Generator
This reference design is a frequency generator for use in synchronizing a circuit’s operation. It consumes less than 50mW of power that specifically uses the IDT’s 9FGV0241 PCI-Express Clock Generator which is the lowest-power PCI Express timing family. It is a two output clock...
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