9 years after I first used my trusty ASUS zenbook ux303 it’s still just about going; the keyboard’s getting flaky-er (lots of keys on the keyboard work intermittently) and of course the hinge repair (drill-through-the-lid™️) has kept the case mechanically alive since 2019…
Tag Archives: tech
UTC-traceable flashing Xmas Tree Lights
Using a GPS’s UTC-synchronised 1PPS signal to drive a relay to flash some LED Xmas tree lights…
PsiWin & MCLINK USB-RS232 adapter compatibility issues
Explaining compatibility issues between USB and retro Psion computers that use RS232 when using USB-RS232 adapters like FTDI & Prolific
“These aren’t the ROMs you’re looking for…”
The latest MAME release (0.253) is the first to support some of Psion’s 16-bit (SIBO) architecture platforms. Series 3a/3c/3mx, Siena and Workabout/mx are now partially supported.
More retro Psion: The HC120 “corporate handheld”
Re-visiting the “corporate handheld” computer that is the Psion HC120,
LCD Cakes – can baking an old LCD screen really fix it?
Can baking an old LCD screen fix it? How about rubbing it with a cotton bud? I tried a couple of suggestions I found on the internet to fix blotches on an old Hitachi monochrome LCD screen from my 1989 Psion MC400 laptop.
On CyberDecks…
Battery powered, portable – Raspberry Pi cyberdecks with tiny screens & keyboards…
ITSF 2022 – mini review
So it’s the Monday after the week before… the week that saw ITSF 2022 happen from 7th-10th Nov in Düsseldorf and I’ve been reflecting on some of the themes & trends that stood out for me over the past week… MCMF (multi-constellation multi-frequency) GNSS receiversThe Sync & Timing community has had access to dual-band receiversContinue reading “ITSF 2022 – mini review”
Tiny oscilloscopes – revisiting the JYETech DSO138 and trying the Raspberry Pi Pico based “scoppy” on Android
Back in Jan 2021 I built the DSO138 tiny oscilloscope kit. Thought I’d dig it out and compare it with the more recent Raspberry Pi Pico based “scoppy” that uses the Pico’s A2D and an Android phone app to display the data
Raspberry Pi Supply Chain Issues – saying hello (again) to the Original Pi Model B Rev 2 512MB
If you’re struggling to find Raspberry Pi Zero (or Zero 2) boards for light IoT applications then an old Pi 1 512MB from 2012 might be the answer…
Tiny clock party – it’s not always about nanoseconds…
A selection of tiny clocks, sync’d a variety of ways – by hand or by (S)NTP/chrony. Featuring Raspberry Pi Pico, ESP32 and micropython.
Out and about with a laptop from 1989
I took my old (1989 vintage) laptop out for a coffee to send some tweets & emails 🙂
Old Meets New: Analog (1G) TACS Cellphone meets Lime SDR
Bringing an old analog (1G) Cleartone CTN9000 mobile phone handset back to life with the aid of a software-defined radio (Lime SDR) and osmocom_analog.
Phoney – Psion Series 3a spoof voice calling from 1996
An app written in 1996 to simulate making voice calls from a Psion Series 3a.
Hacking up the Psion SIBO SDK DOS debugger
Poking around in the old Psion SIBO SDK debugger – which looks like it’s based heavily on the MC’s GUI…
Psion MC400 ROM dump & emulation development
Emulating a Psion MC400 over 30 years later – a 1989 80C86 based laptop being brought back to life in MAME.
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.
Room 7609 