Category Archives: ntp

Persistence of Phosphorescence Clock Displays YouTube Stats Too

Posted on by

Looking for an eye-catching and unique way to display the time and date? Want the flexibility to add other critical information, like the number of YouTube subs you’ve got? Care to be able to read it from half a block away, at least at night? Then this scrolling glow-in-the-dark dot-matrix display could be right up your alley.

Building on his previous Morse code transcriber using a similar display, [Jan Derogee] took the concept and went big. The idea is to cover a PVC pipe with phosphorescent tape and rotate it past a row of 100 UV LEDs. The LEDs are …read more

Continue reading Persistence of Phosphorescence Clock Displays YouTube Stats Too→

7-Segment Digits Slide Stylishly on This OLED Clock

Posted on by

Over at Sparkfun, [Alex] shared an OLED clock project that’s currently in progress but has a couple interesting twists. The first is the use of a small OLED screen for each digit, to which [Alex] added a stylistic touch. Digits transition by having segments slide vertically in a smooth animated motion. It’s an attractive effect, and the code is available on his github repository for anyone who wants to try it out.

[Alex] also found that by using an ESP32 microcontroller and synchronizing the clock via NTP over WiFi, the added cost of implementing a real-time clock in hardware becomes …read more

Continue reading 7-Segment Digits Slide Stylishly on This OLED Clock→

Apparently Time IS Money

Posted on by

Some people like to tweak cars. Some like to overclock PCs. Then there are the guys like [Jack Zimmermann] who are obsessed with accurate time. He’s working on a project that will deploy NTP (Network Time Protocol) servers in different African countries and needed small, cheap, energy-efficient, and accurate servers. What he wound up with is a very accurate setup for around $200. Along the way, he built some custom hardware, and hacked a computer to sync to the GPS clock reference.

His original attempt was with a Raspberry Pi 3. However, the network adapter isn’t the fastest possible, both …read more

Continue reading Apparently Time IS Money→

Paul’s Security Weekly #491 – Security News

Posted on by

A new Mirai worm knocks almost a million Germans offline, time is running out for NTP, the propaganda about Russian propaganda, and who hacked the lights in Ukraine? All that and more in this week’s security news! Full Show Notes Take the Security Weekly Survey Subscribe to YouTube Channel Security Weekly Website Follow us on Continue reading Paul’s Security Weekly #491 – Security News→