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Not really Arduino specific, but there are many arduino projects which seek to use the old nixie tubes. As such, I thought this might be of some interest to the community at large.
From the bygone era of vacuum tube technology is the cold cathode neon readout tube which generically became known as the nixie tube. In the attached video you can see just how labor and energy intensive they are to create. Easy to understand why they are no longer mass produced. Yet there is a natural beauty to these industrial, noble gas filled, numerical, lamps. They continue to make a retro comeback amongst a new generation of DIY electronics hobbyists and cyberpunk enthusiasts.

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Blogger zum Thema Arduino, Raspberry Pi und andere Mikrocontroller.
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My latest project, simple clock that is visible at night. i used arduino Uno and DS3231 real time clock . I also used PT6961 seven segment display that i finded in old tv reciever whis is showed at end of the video. This is my favorite display and it only need three pins.

I am a beginner with a specific project. I need to make a six wire stepper motor follow the rotation of a rotary encoder. I am using a standard Arduino with an Arduino motor shield. I am aiming to adapt the code that simply turns the stepper a specific number of steps or turns. So far all it does is to vibrate instead of turning. Suggestions please

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ESP8266 BME280 Weather Station
One of our favorite new toys is the ESP8266 WiFi module. A very powerful microcontroller in it's own right, it's easily programmed with the Arduino IDE, and uses the same code we have come to know and love.

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ATMEGA32U4 Atmel;ATMEGA32U4datasheet,ATMEGA32U4 8-bit Microcontroller with 16/32K Bytes of ISP Flash and USB Controller

inventory, get a price for ATMEGA32U4 by email.

So I'm continuing to test and work with a wireless board configuration using some 3.6v AA Lithium-thionyl chloride (LiSOCI2) batteries and finding some interesting aspects of using this particular style of battery chemistry that is worth sharing.

While troubleshooting reports of widespread failure, I encountered a scenario where the device would work connected to USB. Then when connected to a battery the device would act "strangely". It would work fine, respond to button presses, etc., but when the radio transmission would start the units would get "weird". Even more strange, after a day or so, the units would start working just fine. Over the past week, all of the units (~150) are operational with no changes.

After significant troubleshooting I figured out the core issue. The board is exceeding the battery surge capacity during radio transmission. The effect of this is that the boards would then "reboot" and my code would restart from initial state. Thus the description as "weird" above.

What was extra strange in my own issue was that in my own application, the units transmited just fine initially. At a later point in my code, they would not. I spend a good amount of time assuming I'd made a coding error. While in some ways I did, but not in the way I expected.

What it all came down to was power. During the second transmission I was doing it while the LED was lit, which was requiring additional power, which caused the board to reboot.

As I started wrapping up the code change to turn off the LED before transmission, everything was suddenly working with no change. That means all of the units at a location...all at once...started working on the same day.

Which again brings back the curiosity of this particular battery technology. These units needed to run almost for an entire day before finally operating as expected. Once the batteries had sat in the units for a full day, everything started working just fine. What was extra curious is that entire groups of units would "fail" at once (I had ~20-30 units at various locations).

Right now, I am operating under the assumption that the batteries are responding to temperature/environmental issues during shipping and requiring some time to acclimate. All of the environments after arrival are identical, so no real temperature variation there.

I am also of course going to go ahead and change my code to use less power both via turning off the LED prior to transmission but also to look at lowering the transmission power as well.

Definitely a curious problem and quite involved per figuring out what in the world is happening when the devices are hundreds of miles away.

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Hello everyone! I just wanted to share our new podcast with everyone. Mike Jeffcoat, Daryl Jones, and myself teamed up to create what we feel is a new take on the maker podcast. We can be found on iTunes, Google Play Music, Sound Cloud, and all of the podcast aggregation apps. Check it out and please let me know what you think!

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Five Tricks For Working With Dupont Wires

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