An update on the Raspberry Pi/Grafana/Influxdb/DS18B20 home temperature monitoring network I first put together in 2020…
Tag Archives: electronics
One of The Many Promises of 5G – Accurate Time Transfer
One of the many promises of 5G is accurate time-transfer. I spent a couple of days travelling around the North West of England testing exactly how accurate available time transfer was from commercially deployed 5G installations.
10 years of Raspberry Pi
So the Raspberry Pi has been around for 10 years… everyone’s favourite credit-card-sized computer does just about everything
Emulating the Psion MC400
I read an online post about creating an “MC400 emulator”. That got me thinking about the ROM, and the 28F010 flash chips that realise it…
RS232 flow-control & handshaking – Psion MC400 retro communications
Connecting my retro-laptop to the internet via 2 x RS232 serial connections to a Raspberry Pi… and defeated (for now) by lack of hardware flow-control signals 😦
5G on the moon?
NASA has ambitions to build a comms infrastructure on the moon using 4G LTE technology…
Magellan GPS 315 vs. The Future – part 2
Some older GPS receivers can’t compute dates properly thanks to the original GPS system employing an epoch with 10-bit week number… a new epoch starts every 1024 weeks!
Magellan GPS 315 vs. The Future – part 1
Comparing a handheld 1990s dedicated GPS receiver with the GNSS chip in a 2019 smartphone
“Electronics & Music Maker” – archiving a demo cassette from 1982
“Electronics & Music Maker” (E&MM) was a magazine aimed at home/hobby music makers that started in the early 1980s and was produced as an offshoot of the mighty Maplin electronic component distribution empire. The idea was that it would promote more sales and engagement with Maplin’s component business through projects & DIY features based aroundContinue reading ““Electronics & Music Maker” – archiving a demo cassette from 1982″
Reviving a relic – a time machine from the past – the Enhanced Waveform Generator
Reviving some 1990s era tech …
Buying 2nd hand “vintage” Hi-Fi on eBay – buyer beware
Bought an old Hi-Fi from eBay – seller listed it as “used” (meaning it works OK but might have some cosmetic damage). Turns out it was faulty. D’oh.
Reading a 27C512 EPROM with a Raspberry Pi – ROM-dumping!
Using Raspberry Pi GPIO to read the contents of an old 5V CMOS ROM
Minidisc copybit stripper – the Elektor SCMS killer
Defeating SCMS copy-control restrictions in digital minidisc-to-minidisc copies using the infamous Elektor copybit killer from 1998
Technics RS-B665 Cassette Deck Remote Control
Creating a remote control for a 1990s tape-deck using raspberry pi, python, node-red and some relays. Features minimal hardware hacking of the tape deck itself… 😉
Tiny Oscilloscope kit based on STM32F103 ARM microcontroller
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”
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…
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.
Room 7609 