JohnS_AZ's Avatar

JohnS_AZ

@johns-az.bsky.social

Democrat Progressive Agnostic Humanist Married Geek (he/him) near Phoenix, Arizona, USA. Majorly into electronics hardware, minorly into embedded software. Scrap/surplus auctions are my happy place.

252 Followers  |  306 Following  |  1,955 Posts  |  Joined: 26.08.2023  |  2.0326

Latest posts by johns-az.bsky.social on Bluesky

Post image

Got my flag for Saturday. :-)

15.10.2025 21:02 β€” πŸ‘ 7    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0
Driving a CU40026MCPB-S35A VFD Driving a CU40026MCPB-S35A VFD I acquired a CU40026MCPB-S35A at BornHack from a lovely person with a collection of VFDs they were looking to get rid of. This was only one type of many they had, and I ...

Judging by this, it's just parallel: blog.crablab.uk/cu40026mcpb/

15.10.2025 19:46 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

I haven't found a datasheet for this specific display yet. With a 26-pin interface, it may well have both.

15.10.2025 19:44 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
Post image

Harvested a cool display this morning that should be fun to get going. :-)

40X2 VFD, 8.5"X1"

15.10.2025 17:46 β€” πŸ‘ 10    πŸ” 1    πŸ’¬ 2    πŸ“Œ 0

Phoenix Metro folks...

The Technology Education Collaborative is hosting a free Rayhunter Workshop Wed Oct 15 @ 6pm. A senior staff for the EFF will virtually make a presentation about the technology, and how to set up your own Stingray detector.

Get full details here: techedcollab.org/home/

13.10.2025 21:09 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Preview
Hardware Happy Hour (3H) Phoenix (metro), Thu, Nov 13, 2025, 7:00 PM | Meetup The Advanced Cyber Systems Lab at Gateway Community College has been great!, so we're staying with them. You can find out more about them and the location at: [https://tech

MARK YOUR CALENDAR!
Phoenix Hardware Happy Hour
Thursday, November 13th, 2025
Meeting at the Advanced Cyber Systems Lab at Gateway Community College, 40th St and Washington in Phoenix.
Find full details at:
www.meetup.com/hardware-hap...

10.10.2025 18:44 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Preview
Hardware Happy Hour (3H) Phoenix (metro), Thu, Oct 9, 2025, 7:00 PM | Meetup NOTE CHANGED LOCATION ! ! ! The Advanced Cyber Systems Lab at Gateway Community College has been great!, so we're staying with them. You can find out more about them and th

T O D A Y !
Phoenix Hardware Happy Hour
7-9 pm Thursday, October 9th, 2025
Meeting at the Advanced Cyber Systems Lab at Gateway Community College, 40th St and Washington in Phoenix.
Find full details at:
www.meetup.com/hardware-hap...

09.10.2025 14:25 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Preview
Hardware Happy Hour (3H) Phoenix (metro), Thu, Oct 9, 2025, 7:00 PM | Meetup NOTE CHANGED LOCATION ! ! ! The Advanced Cyber Systems Lab at Gateway Community College has been great!, so we're staying with them. You can find out more about them and th

DON'T FORGET!
Phoenix Hardware Happy Hour
This Thursday, October 9th, 2025
Meeting at the Advanced Cyber Systems Lab at Gateway Community College, 40th St and Washington in Phoenix.
Find full details at:
www.meetup.com/hardware-hap...

06.10.2025 22:26 β€” πŸ‘ 4    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Better than the deer.

06.10.2025 18:27 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
Post image

New toys in the mail!
Now, let's figure out this #meshtastic thing. :-)

06.10.2025 16:20 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

um, well um, ya see .....

22.09.2025 23:35 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Post image

So, do you bid on a 200 pound lot of boat anchors just to get the HP counter/timer with Nixie tubes??

22.09.2025 23:19 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 2    πŸ“Œ 0

And mask.

19.09.2025 22:47 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Preview
Hardware Happy Hour (3H) Phoenix (metro), Thu, Oct 9, 2025, 7:00 PM | Meetup NOTE CHANGED LOCATION ! ! ! The Advanced Cyber Systems Lab at Gateway Community College has been great!, so we're staying with them. You can find out more about them and th

MARK YOUR CALENDAR!
Phoenix Hardware Happy Hour
Thursday, October 9th, 2025
Meeting at the Advanced Cyber Systems Lab at Gateway Community College, 40th St and Washington in Phoenix.
Find full details at:
www.meetup.com/hardware-hap...

17.09.2025 16:42 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Post image

Huh.
TIL that facebook marketplace has a ton of old 3D printers in the $30-$70 range. Granted, older models that likely need repair, but not a bad way for someone to dip their toes into that water. Further, ~$40 is a steal just for the parts for a DIYer!!

16.09.2025 16:52 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

My wife and I got our booster at a CVS Minute Clinic on Sunday morning, mostly motivated to do it ASAP by following you. Keep up the great work!

15.09.2025 22:31 β€” πŸ‘ 12    πŸ” 1    πŸ’¬ 1    πŸ“Œ 0
Post image

It was very interesting to learn, last night at Hardware Happy Hour, that the most common 1990s credit card terminals ran on a complete, embedded Z80 system, including an RTC and a 1200-baud modem.

I need to snag a couple of these. :-)

12.09.2025 15:54 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Preview
Hardware Happy Hour (3H) Phoenix (metro), Thu, Sep 11, 2025, 7:00 PM | Meetup NOTE CHANGED LOCATION ! ! ! The Advanced Cyber Systems Lab at Gateway Community College has been great!, so we're staying with them. You can find out more about them and th

T O N I G H T ! ! !
Phoenix Hardware Happy Hour
Thursday, September 11th, 2025
Meeting at the Advanced Cyber Systems Lab at Gateway Community College, 40th St and Washington in Phoenix.
Find full details at:
www.meetup.com/hardware-hap...

11.09.2025 17:24 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Preview
Hardware Happy Hour (3H) Phoenix (metro), Thu, Sep 11, 2025, 7:00 PM | Meetup NOTE CHANGED LOCATION ! ! ! The Advanced Cyber Systems Lab at Gateway Community College has been great!, so we're staying with them. You can find out more about them and th

DON'T FORGET!
Phoenix Hardware Happy Hour
This Thursday, September 11th, 2025
Meeting at the Advanced Cyber Systems Lab at Gateway Community College, 40th St and Washington in Phoenix.
Find full details at:
www.meetup.com/hardware-hap...

08.09.2025 14:56 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Preview
JohnS_AZ (@JohnS_AZ@mastodon.social) Attached: 1 image It's funny. I grew up alongside LEDs, which became practical in 1962 when I was 2. For 30 years, there were red and green ones, and occasionally yellow ones. Great for building traf...

mastodon.social/@JohnS_AZ/11...

30.08.2025 18:00 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Post image Post image

Half an inch of rain overnight, cool low 80s morning, perfect for a hive check.
Lisa does the checking part. I do the lift the heavy as hell boxes part. :-) (honey weighs a LOT!)

29.08.2025 15:47 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Video thumbnail

My favorite display has been the TIL-311 for ages. Any excuse to stick a couple on a breadboard and I'll take it. <grin> (I just learned these obsolete displays are going for ~$8 to $30US each!!! Yikes! )

28.08.2025 17:54 β€” πŸ‘ 5    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Might not get anything at all if the plants are so hybridized they're sterile. Or get the plant for the root stock or the non-hybridized version. Might get Audry III. Actually sounds like an interesting experiment.

26.08.2025 23:12 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

TIL: If your M2716 EPROM requires a 25V programming voltage, and your cheap assed Amazon programmer can only go up to 18V, if you hit "Program" a half dozen or more times, it will eventually get done. :-)

26.08.2025 18:01 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

20 marketing posts in a day. That moves you from interesting to spam. Unfollowing.

25.08.2025 15:35 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

(Screw climate-induced, bullshit tariff spiked, and asshole Trump fueled inflation!)

24.08.2025 23:32 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Post image

We made homemade Chili Crisp!
Jalapenos, chili peppers, garlic, and I'itoi onions all from the garden. Spices, dried mushrooms, MSG, and peanut oil in the pantry. Made 24 oz of excellent GLUTEN FREE Chili Crisp for a tiny fraction of the $18/6oz of the 'good' commercial stuff.

24.08.2025 23:31 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Ah. I post/see mostly geek stuff here. I keep the rude and vulgar political screaming over on Threads. <grin>

16.08.2025 19:18 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

I already shitcanned my Twitter account. Which one are we cranky about now? :-)

16.08.2025 17:02 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
Preview
Hardware Happy Hour (3H) Phoenix (metro), Thu, Sep 11, 2025, 7:00 PM | Meetup NOTE CHANGED LOCATION ! ! ! The Advanced Cyber Systems Lab at Gateway Community College has been great!, so we're staying with them. You can find out more about them and th

MARK YOUR CALENDAR!
NEW LOCATION!!
Phoenix Hardware Happy Hour
Thursday, September 11th, 2025
Meeting at the Advanced Cyber Systems Lab at Gateway Community College, 40th St and Washington in Phoenix. Find full details at:
www.meetup.com/hardware-hap...

15.08.2025 15:43 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

@johns-az is following 20 prominent accounts