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Neon Glow Lamp Clock

Neon Glow Lamp Clock

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I were able to buy 300 Osram LG234TR Neon Glow Lamps very cheaply and I wanted to build a clock using them in a 7-Segment arrangement.
Before I started with this project I had no idea how to use a Raspberry Pi or write Python code. I hacked the code together after reading python tutorials for a few days and this is the result.
I used 228 of the Osram LG234TR Neon Glow Lamps. They have a built-in resistor and you can connect them directly to the mains. Power consumption is around 0,7 mA per bulb.
Each segment is connected to a separate relay which are controlled by a Raspberry Pi.

I bought:
1. Raspberry Pi 3B+
2. ModMyPi MCP23017 - 32 Channel I/O Expansion HAT to have enough outputs to control 29 relays
3. 4 8-Channel 5V Solid State Relay Boards
4. MEANWELL RS-35-5 5V/7A Power Supply to power the Raspberry Pi, the hat and the 4 relay boards (A 5A supply would have been more than enough)
5. 228 E10 bulb sockets
6. USB and HDMI expansion cables
7. a bunch of screws and washers

Solid state relay boards are more expensive than regular relay boards but I wanted silent operation and no relay clicks once per minute.

20190411_163424.jpg 20190309_003305.jpg 20181123_183410.jpg 20181122_152312.jpg

Light Information

Light Information

Manufacturer:Osram
Model Reference:LG234TR
Lamp
Lamp Type:Neon Glow Lamp
Base:E10
Electrical
Voltage:220V
Current:0,7 mA

File information

File information

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Filename:20181123_183410.jpg
Album name:meganie / Neon Glow Lamp
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Keywords:Miscellaneous
File Size:190 KB
Date added:Nov 23, 2018
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Date Time:2018:11:23 23:42:52
DateTime Original:2018:11:23 18:34:10
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LampLover
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120/240VAC @ 60HZ


GoL PeterYachymczyk UCYBAif_ag4v8nIcCU3VAmag
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Nov 23, 2018 at 07:17 PM Author: LampLover
Nice! Job & Cool clock

LED Free Zone!
All For HID, magnetic rapid-start Preheat & old-school electronic Only (no instant start F17T8 & F32T8 allowed)

ramdude2014
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Nov 23, 2018 at 07:21 PM Author: ramdude2014
Excellent clock!

Next stop gate T17!

lightinglover8902
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Power distributor: CenterPoint Energy. 120V 60Hz


GoL UCfoxh9h5FaLg-R04V8WDi3w
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Nov 23, 2018 at 08:15 PM Author: lightinglover8902
Beautiful clock! Looks fantastic!

Save the Cooper OVWs!! Don't them down by crap LED fixtures!!!

rjluna2
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Robert


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Nov 24, 2018 at 09:35 AM Author: rjluna2
Nice project, meganie

Pretty, please no more Chinese failure.

xmaslightguy
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zzz


GoL ATL
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Nov 24, 2018 at 10:00 AM Author: xmaslightguy
Awesome!
From the thumbnail I thought it was LED.

One thing I've always thought would be cool to build is a fluorescent clock! (I've thought about just how difficult it'd be to do too all those wires & ballasts, plus some sorta control & clock circuit.)
Raspberry Pi is something I figured would work as a 'brain'

Its All For The Christmas Lights...
And A Good Summer Thunderstorm!

migette1
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Peter


migette1
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Nov 24, 2018 at 10:11 AM Author: migette1
Hi well done nice item!

Interested in the history of electric lighting and incandescent in particular and neon glow lamps.

merc
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Adam


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Nov 24, 2018 at 10:49 AM Author: merc
Interesting project. And now do this with flicker flame neon glow lamps.
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