Sign in

Robert - DL3RR

@robertdl3rr.bsky.social
472 followers 578 following 420 posts

Chartered Engineer, Amateur radio (especially QRP), cycling, walking, armchair narrowboater, model railways and retro-computing.

PostsRepliesMedia
Robert - DL3RR @robertdl3rr.bsky.social · 27/06/2026
For goodness sake it's hot! Ridiculously so...
120
Robert - DL3RR @robertdl3rr.bsky.social · 20/01/2026
Just for fun, I thought I would use AI to design an antenna - Oh dear...
What is claimed to be a "clean, electrically correct schematic-style of the finished antenna, based on everything we've discussed". I don't even know where to begin describing the diagram!
260
Robert - DL3RR @robertdl3rr.bsky.social · 14/08/2025
Slightly diminish a Band name: Am♭5-ha
010
Robert - DL3RR @robertdl3rr.bsky.social · 25/07/2025
How did I miss the fact that Herbie Flowers died last September? I saw him perform years ago, and met him afterwards. He came across as a thoroughly nice guy. Another great gone. 🙁
030
Robert - DL3RR @robertdl3rr.bsky.social · 25/07/2025
I have spent some pennies on one of these... It should be arriving today, and I am ridiculously excited!
A picture of the Small Computer Central SC131 Pocket Sized CP/M computer.
2100
Robert - DL3RR @robertdl3rr.bsky.social · 04/04/2025
Lolwut?!? Then it's not actually a 16-bit Bidirectional I/O port, is it?
The datasheet for the MCP23017 proudly states that it has a 16-bit remote bidirectional I/O port.  It then goes on to say that two of the pins are for output only.
040
Robert - DL3RR @robertdl3rr.bsky.social · 08/03/2025
Return of the Vermicious Knids!
A large egg-shaped object with eyes. I am reliably informed its a Unicorn,  not a Vermicious Knid.
030
Robert - DL3RR @robertdl3rr.bsky.social · 09/02/2025
Back to writing a simulator/ emulator. It's a while since I've done one. (I must be a glutton for punishment). This time, it's a #DataGeneral #Nova.
150
Robert - DL3RR @robertdl3rr.bsky.social · 22/01/2025
Nice to see the canal system getting a mention in E+T - Of course, the ever present funding challenges are probably the biggest issue facing the network at the moment. eandt.theiet.org/2025/01/06/u...
eandt.theiet.org
UK canals cool cities and protect against floods but face funding challenges
The UK’s historic canals provide an increasingly valuable role in cooling the UK’s cities while providing water security and flood protection, a report has found.
020
Robert - DL3RR @robertdl3rr.bsky.social · 25/12/2024
Ooooh! Look what Santa brought 🎅
A Retro-games "The Spectrum" brand new and boxed. Just like Christmas 1983...
4200
Robert - DL3RR @robertdl3rr.bsky.social · 16/12/2024
This was the cause of some very colourful language. Of course, the code on here was the ONE project I don't have a backup of... 🤬
A 32Gb SanDisk micro SD card split neatly into two pieces.
130
Robert - DL3RR @robertdl3rr.bsky.social · 08/12/2024
Apparently, this is a reindeer head. Not a Vermicious Knid - whoops 😬
A crocheted egg-shaped object with eyes.
180
Robert - DL3RR @robertdl3rr.bsky.social · 07/12/2024
A little side project. Playing around with the Framebuffer on the Raspberry Pi.
A photograph of a monitor displaying colour bars.
030
Robert - DL3RR @robertdl3rr.bsky.social · 07/12/2024
For goodness sake! It's 09:30 and it's still half dark. Revolting weather!
130
Robert - DL3RR @robertdl3rr.bsky.social · 21/11/2024
I have just finished creating another PCB for my #RC2014 and uploaded it to the Board House. Now I just have to wait... IDE Controller this time.
010
Robert - DL3RR @robertdl3rr.bsky.social · 15/11/2024
I am musically inept - although I wish I wasn't. However, this was a fantastic recommendation from YouTube! www.youtube.com/@SalisburyOr...
youtube.com
Ben Maton - The Salisbury Organist
Music, history and poetry from Southern England’s most beautiful village churches. My videos are self-filmed and self-produced. I’m a graduate of Oxford University, where I was Organ Scholar at St Pe...
010
Robert - DL3RR @robertdl3rr.bsky.social · 14/11/2024
Great! While cleaning the cat's litter trays, my glasses fell out of my top pocket and, you've guessed it, straight in!
020
Robert - DL3RR @robertdl3rr.bsky.social · 13/11/2024
Yesterday evening, I finally managed to get my #RC2014 real time clock board working. Note to self - when ordering parts make sure you check the datasheet! What I thought I ordered (Left) vs what I actually ordered (Right) 🤦
Diagramatic representation of a SIL Resistor Network in Star Configuration.Diagramatic representation of a SIL Resistor Network in Parallel Configuration.
120