I discovered this tiny oscilloscope kit the other week. It’s a DSO138 by JYE Tech – £30 from Amazon(UK) or less than £20 if you can wait for delivery from China 🙂It took me less than 2 hours to build and worked first time! I’ve still got some soldering skills lol. It comes in twoContinue reading “Tiny Oscilloscope kit based on STM32F103 ARM microcontroller”
Author Archives: zedstarr
Replacing the white LED stylus target light on Audio-Technica AT-LP120X
Replacing the dreadful plastic-housed white LED stylus target light with a red one on the Audio-Technica AT-LP120X to match all the other LEDs on the turntable…
Streaming Vinyl Audio around the house (and beyond) with Raspberry Pi and Icecast + Darkice
Streaming audio from a turntable with Darkice and Icecast running on a Raspberry Pi 4B
Bosch-Worcester 35CDi Fan Failure
It was a cold start to 2021, outside temps well below freezing, I guess that was the final straw for the ~20yr old fan in my combi boiler. On New Year’s Day I’d noticed it was making more noise that usual as I was putting some rubbish in the wheelie bin, nothing more than aContinue reading “Bosch-Worcester 35CDi Fan Failure”
Grafana, Influxdb & telegraf based home temperature monitoring with Raspberry Pi and the humble DS18B20
Creating a temperature monitoring dashboard in Grafana to display temps from sensors all around the house. Running on Raspberry Pis and using the venerable DS18B20 one-wire sensor.
Flashing LEDs with a 555 timer – and not a lot else
Just dug this out of storage – some electronics I made in the late 80s/early 90s. Most of it is old/scrap components that were lying around on my desk – only the (socketed) 555 and MC14526 counter/divider actually do anything; flashing the LEDs along the edge. I can remember making it at work during quietContinue reading “Flashing LEDs with a 555 timer – and not a lot else”
Complex Conjugate
So, “zedstarr” eh? What’s that about you may ask… Wikisplain Z*. Zed star. Zedstarr. Of course it is. Told you it was real. Well, imaginary. Well…. oh never mind.
“Alma Mater” ???
So today I got to visit my “alma mater” – not a phrase I feel comfortable using, turns out it’s a (Latin) American English term, less so useful/used in British English – so what I really mean is I visited my old university. I have an alumni library membership, so thought I’d pop in, forContinue reading ““Alma Mater” ???”
Test from Android
Just this…
TimeZones
Sleepy. 19:33 local time. 01:33 home timezone time… bleah
Bicycle Dynamo…
via TweetDeck A modern dynamo – who knew they still existed and were so cool. From the 1980’s style, tyre rubbing demons, to this 🙂
Retrophone #Ericsson t39 – dug out of the drawer, still working!
Just dug the old T39 out of the drawer – still works, but have to charge the battery off the phone, and battery won’t take a full charge, but apart from that I love the form factor… Perfect just for making calls 🙂
Adventures in Solar
The smaller “trickle charger” looked like it would manage just over a watt I need to test these on an overcast day to get more or a realistic idea of their capabilities… Ideal for camping – assuming there’s some sunshine! See the full gallery on Posterous
Car hacking
Some CAN data got via mbed, geo-logged to SD. That is all.
mbed.org – embedded fun – http://bit.ly/hE8PnA
Just getting into mbeg.org – rapid prototyping using NXP's microcontrollers Specifcally like the RFID to twitter build that was featured on Wired. see http://bit.ly/hE8PnA
Build – least amount of effort
Hmmm. Similar technique to how I created "Bra Hair" by Japanese Spam Hammer back in the day… Try this: 1 – Go to Wikipedia and hit random article. The first random Wikipedia article you get is the name of your band. 2 – Go to The Quotations Page – Your Source for Famous Quotes andContinue reading “Build – least amount of effort”
Winamp on Android – it’s like being back in 1997!
Can't believe it, back in 1997 Winamp was THE media player, mp3 files were just becoming popular… I remember running winamp on the first laptop I ever bought, a hulking big AJP 6200, running win95. Winamp on a portable device is what I longed for in 1997 – imagine winamp on a Psion Series5! IContinue reading “Winamp on Android – it’s like being back in 1997!”
Room 7609 