NIXIE watch as a home decoration :)
Hello forum users,
I present the finished design of a watch based on IN-1 + INS-1 tubes
The project assumed the greatest possible compactness of the control electronics while using the most common elements.
So I decided on a surface mount project, using the DS3231 as a real time clock, the watch code is contained in the ATmega328 present on the PCB as an integrated Arduino UNO, hence the presence of the CH340G on board and the possibility of programming at any time via the USB C port, which also serves as power.
The tubes are controlled by two multiplexing 74HC595 registers connected to MMBTA42 and MMBTA92 transistors.
The 170 V boost converter is a ready-made system purchased from our friends from the east.
On the board, in the possible need for development, there are 3 free Arduino ports that can be used as inputs/outputs (buttons, alarm clock buzzer, etc.)
The colon, of course, serves as the second hand.
The shape of the printed circuit board was created with the intention of making a watch case, but the woodwork is still ahead of me. :)
What do you think? I'm interested in your opinions.
I present the finished design of a watch based on IN-1 + INS-1 tubes
The project assumed the greatest possible compactness of the control electronics while using the most common elements.
So I decided on a surface mount project, using the DS3231 as a real time clock, the watch code is contained in the ATmega328 present on the PCB as an integrated Arduino UNO, hence the presence of the CH340G on board and the possibility of programming at any time via the USB C port, which also serves as power.
The tubes are controlled by two multiplexing 74HC595 registers connected to MMBTA42 and MMBTA92 transistors.
The 170 V boost converter is a ready-made system purchased from our friends from the east.
On the board, in the possible need for development, there are 3 free Arduino ports that can be used as inputs/outputs (buttons, alarm clock buzzer, etc.)
The colon, of course, serves as the second hand.
The shape of the printed circuit board was created with the intention of making a watch case, but the woodwork is still ahead of me. :)
What do you think? I'm interested in your opinions.
emil134679 wrote 156 posts with
rating 90 .
Been with us since 2010 year.
Comments
Those lamps that make for colons, what markings do they have/where did you buy them? [Read more]
INS-1, where you get it, you buy it there, I used to buy tubes a long time ago. [Read more]
The project was successful, but since it will be in a wooden housing, compactness was probably not that important. Personally, I would choose a clock on vertical lamps, similar to this one, but with an... [Read more]
Such a pretty tile that it's a shame to hide it. :) How is the time set? Because it's the only inconvenience when we still have the summer/winter time change. DS3231 has a very small deviation.... [Read more]
That's right, you can make a transparent casing or (if the heat exchange allows) pour a transparent resin. [Read more]
No lamp replacement? The technical data indicate that the guaranteed lifetime for the IN-1 is only 1000 h. [Read more]
One has LC-516 link . I changed the tubes a few times so that the cathodes would detoxify and once two transistors died together with the CD4028 The advantage of the multiplex is that the lamps do... [Read more]
It was important because the housing is neither deep nor wide, more or less I see it as if you wrapped the presented circuit around, leaving the tube lenses outside the housing. The colleague above showed... [Read more]
My taste is probably due to the fact that I first had contact with displays on vertical lamps and I remained faithful to them. [Read more]
Do you have any experience with a high voltage converter controlled directly from the uC? At one time I wanted to make a simple PWM controlled one MOSFET transistor and a transformer from fluorescent... [Read more]
The new Atmel uCs are great for this. https://sm6vfz.wordpress.com/2020/12/11/boost-regulator-with-attiny/ In practice, it can be even simpler - ATTINY212: TCA0.SINGLE.PER = 4; // 30us period,... [Read more]
Great project (if there was a rating, of course there would be ⭐⭐⭐⭐⭐), I could do it myself. Is it possible for you to send the board design, diagram and code? [Read more]
@karoljuszkiewicz I don't look on the electrode too often but yes, a matter of agreement. I still have the boards as well as the code and the tutorial left because I already had a few customers for the... [Read more]
I love the compact design and how you integrated the Arduino and other components so seamlessly. It's got a cool retro vibe with those IN-1 + INS-1 tubes. I’ve been fascinated by NIXIE tubes for a while... [Read more]