Episode 476: IoT Arduino NTP World Clock with SPI Display

IoT Arduino NTP World Clock with SPI Display

element14 presents | Kaleb Clark's VCP Profile | Project Videos

I work with people in many different time zones, and have always wanted an ‘at a glance’ world clock so I can see what time it is in their timezone. But I want mine to be configurable and synchronized with NTP, so I am going to build it!

Supplemental Content:

Download code from Github: https://github.com/KalebClark/ArduinoClock

Bill of Material:

Product Name	Manufacturer	Quantity	Buy KitBuy Kit
ARDUINO NANO 33 IOT DEV BRD, ARM CORTEX-M0+ MCU	ARDUINO	1	Buy NowBuy Now
VISHAY 7 Segment LED Display, Multiplex Mode, Green, 20 mA, 2 V, 4 mcd, 4, 10 mm	VISHAY	2	Buy NowBuy Now
ADAFRUIT Add-On Board, PiTFT Plus Raspberry Pi HAT, 3.5" TFT Screen, 480 x 320, Capacitive Touchscreen	ADAFRUIT	1	Buy NowBuy Now
TRIPP-LITE USB Cable, Type A Plug to Micro Type B Plug, 3 m, 10 ft, USB 2.0, Black	TRIPP-LITE	1	Buy NowBuy Now
BOURNS Rotary Encoder, Mechanical, Incremental, 24 PPR, 24 Detents, Vertical, With Momentary Push Switch	BOURNS	1	Buy NowBuy Now
LED DISPLAY DRIVER, 8 DIGIT, DIP-24	MAXIM INTEGRATED	1	Buy NowBuy Now

Additional Parts:

Product Name
Small Proto board
10kohm Resistor

Attachments:

NTPWorldClock_Resources.zip
Kaleb_013-STL-Files.zip

Top Comments

navadeepganeshu over 1 year ago

This is a supercool project! Really loved it
Can imagine about the amount of work that went into designing the GUI . Using Nextion display would have made the job little easier as there is a software to design GUI and toggling can be controlled with the serial interface.
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airbornesurfer over 1 year ago

Another awesome clock project! I may have to build one of these myself!
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kalebclark over 1 year ago in reply to jenniferl

Thank you Jennifer!

That is a good idea for the TFT, One of the reasons I did not add any TFT functionality, was that I could not think of a great use for it since the encoder did everything I needed. It could also take you to the TZ selection screen in context to change it. Also, that would require a lot more code, hah

That is awesome! If you run into anything or have questions please feel free to ask away here on this thread, I will keep an eye on it. Key tip: Make sure you get the same IC and 7seg displays. I will also see about getting a schematic together to post. Good luck!

-Kaleb
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jenniferl over 1 year ago

Very nice, Kaleb! I like the "why buy one when you can build it" philosophy!! Did you consider adding AM/PM indicators for the two external displays? It looks like there might be room on the associated information areas on the TFT. Also, I wondered about adding some functionality using the touch-screen capabilities already present in the TFT. Maybe a single tap on one of the timezones moves it to the top external display, and a double tap moves it to the bottom display. It would require significantly more programming, I guess. The possibilities, though, are plentiful!

Thanks for sharing! You've inspired me to build this project!!

Jennifer
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kalebclark over 1 year ago in reply to mayermakes

Hah!
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kalebclark over 1 year ago in reply to DAB

Thanks DAB!

-Kaleb
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DAB over 1 year ago

Nice build.

DAB
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mayermakes over 1 year ago

mid of the episode ..suddenly " are you an Engineer or maker?" YES..thats me..no really thats me totally cought me off guard..answering to my own voice.
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