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Posts Tagged ‘rtc’

RTC based automatic LED lamp

Monday, December 17th, 2018

Dilshan Jayakody published a new build: This is real-time clock based automatic LED lamp which we originally designed to use as night light. This lamp can programmed to turn on and off at the specific time of the day. For example, it can program to turn on at 6 PM...

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Posted in DIY, LEDs, PIC | No Comments »

Tiva and Stellaris Launchpad RTC usage in Energia

Thursday, February 16th, 2017

Vadim has posted a tutorial on how to use internal RTC of Stellaris and Tiva Launchpad boards in Energia IDE: For those of you who still have one of those old Stellaris Launchpads, I'm going to show how to utilize one of its most useful features - real time clock - in...

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DS3231 RTC control and theory with the Bus Pirate

Thursday, October 30th, 2014

@omwah tweeted, "Article I wrote on controlling the Maxim DS3231 RTC with the Bus Pirate" The Maxim DS3231 is an accurate, yet relatively expensive real time clock (RTC). It has an integrated temperature compensated crystal and communicates over I2C. Get an assembled Bus Pirate for $30, including world-wide shipping. Also...

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Posted in Bus Pirate | No Comments »

DIY Binary clock in an old hard drive shell

Thursday, August 7th, 2014

x2Jiggy wrote a post on his blog detailing the build of his DIY binary clock: This clock uses a minimalist design constructed in the shell of an old hard drive. A DS1307 Real Time Clock (RTC) module keeps accurate time while an ATMega328 (with Arduino bootloader) microcontroller determines which LEDs should be...

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Posted in clock, DIY | No Comments »

App note: Tips for writing bulletproof real-time clock control code

Sunday, July 6th, 2014

  Here's a good app note from Maxim on writing real-time clock code to get a stable system operation. With the use of proper device initialization and code sequencing, accurate timekeeping and clock alarm operations become a more manageable task.

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Posted in app notes | 1 Comment »

Turning your Flash Destroyer into a clock

Tuesday, February 18th, 2014

voidptr writes: So ! .... 2 years later, here an update on living with my dangerous Flash Destroyer hack ! First off, front and back picture :o) I added few things since its birth ... A battery for the real time clock, really handy when you reprogram code and you...

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3V-5V switchable I2C Real Time Clock Shield

Monday, September 9th, 2013

Dave writes: Using the Maxim/Dallas 1307 RTC that runs at 5V with the Arduino Due that runs at 3V. FETs are used for bidirectional level shifter per a Philips app note. All built on a Freetronics ProtoShield of course! Via the forum.

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Posted in Arduino | No Comments »

RTC and port expander for an Arduino nixie clock

Tuesday, March 20th, 2012

Luca is designing a nixie clock that will be run from an Arduino. In the latest development he shows to to implement a real time clock source and a port expander to drive the nixies. In this third blog post, I’m going to show you the logical view of my...

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Posted in project logs | No Comments »

DIY Chronodot, homemade RTC with a battery backup

Thursday, February 2nd, 2012

Valentin built a DIY version of the Chronodot real-time clock with battery backup. He used some disc shaped perfboard to assemble all the components. There is an optional component that you can add - a real time clock (RTC) with battery back up. It is called Chronodot RTC. All it...

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Turning your Flash Destroyer into a clock

Monday, January 9th, 2012

Ok, so you burned all the memory chips you had around, and now a nice 7-digit display is standing on your desktop just taking up space. This hack turns your unused Flash Destroyer into a clock using a real time clock IC and some spare logic. Via the forum.

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Chronoduino board v0.3

Saturday, October 8th, 2011

The Chronoduino uses an Atmega168PA microprocessor. On the peripheral side there is a DS1337 RTC, a BMP085 barometric/temperature sensor, and a MCP73831 Li-Po battery charging IC. Numerous headers as well as two buttons, LED, and a buzzer are on the board. The idea behind the project is to design an Arduino watch platform (hence, quite...

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DIY GLCD clock project

Tuesday, October 4th, 2011

ezflyr posted his GLCD clock PIC project: The project is based around the 75x52.7mm 128x64 Graphic LCD. The time keeping is delegated to a battery-backed Dallas DS-3231 RTC. A PIC 16F876A is used to tie it all together. The PCB was designed to fit nicely behind the display. It is operated via...

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Posted in clock, project logs | 1 Comment »

7400 competition entry: RTC with gate IC

Tuesday, September 13th, 2011

[embed]http://www.youtube.com/watch?v=IRS_ORKxAvA[/embed] DolceVii posted his old clock made with only gate ICs for the 7400 competition. Via the contact form.

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Posted in 7400 contest | No Comments »

Adafruit DS1307 real time clock breakout board kit

Wednesday, July 14th, 2010

Adafruit has a new DS1307 real time clock kit. We've demonstrated the DS1307 with the Bus Pirate, which you can also pick up at Adafruit.

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Posted in Bus Pirate | No Comments »

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