I have been commissioned to conduct an in-depth investigation into income inequality across various countries. The findings of this research are now available and can be accessed through the following link.
www.i4cy.com/inequality/
I am truly honoured and delighted to have been selected as the Third Place Winner in the 2025 CLB design challenge. Being recognized by the judges among such a talented group of participants is both humbling and encouraging.
www.i4cy.com/brm/
The Moon
A clear, crisp autumn evening and a bright moon above. After some gentle persuasion, I took the chance to capture it.
https://i4cy.com/pi/ - Happy Pi Day! #PiDay http://i4cy.com/pi/
https://twitter.com/i4cy_/status/1635690327049744403
[14/03/2024]
Image: 1763968681342644555-GHrf_LgWcAAQY8O.jpg
Know your colour code! #electronics
[02/03/2024]
Image: 1709968611605893584-F7sG64hWMAEvOph.jpg
I did try βringingβ the Addmaster 01 Hotline number β but strangely no one answered. So I repaired and restored this vintage 1972 Addmaster calculator myself. It uses an early gas discharge βPanaplexβ orange display. #VintageElectronics #VintageCalculator #Panaplex
[05/10/2023]
Image: 1691745164501401752-F3pHW3fWcAAiCIm.jpg
I'm displaying 3D mesh shapes in this C# app on this repaired/restored #VectorScope from the 1970s. Combining new and old - a match in electronic heaven. #3Dgraphics #programming #electronics
[16/08/2023]
Image: 1674374191976464384-FzyQ3q4XgAA25Rr.jpg
Transistor checking using the 1970s made, and the more recent homemade. Can you guess which one is newer?
#Tridendifier #TT144 #Electronics #NPN #PNP
[29/06/2023]
Image: 1665674191054548992-Fx2ppJRWIAElT6x.jpg
Great for testing rebranded #Z80 chips from China.
[05/06/2023]
Image: 1665671221713817600-Fx2nDlbX0AAS2cc.jpg
Did I watch the FCukup this weekend? Of course not! Instead, being an uber-geek I built this Z80-MBC2 board and revisited the groovy 70s computing era. Definitely a nostalgic trip down computer memory lane.
#100DaysOfCode #z80mbc2 #RetroComputing #cpm #digitalResearch
[05/06/2023]
https://www.i4cy.com/sinclair/
C Programming on #Sinclair ZX Machines - Generating a Mandelbrot fractal in C for the #ZX80, #ZX81 and ZX #Spectrum vintage computers with #Z88DK.
#100DaysOfCode #RetroComputing #Programminghttps://www.i4cy.com/sinclair/
[11/05/2023]
Image: 1638260194604994587-FrxEy3FWcBcapRv.jpg
Just repaired and restored this 1973 Sinclair Cambridge Type-2 vintage calculator. It uses a TMS0801NC calculator chip by Texas Instruments which requires -10V and -15V supplies since it is a PMOS device.
#Sinclair #SinclairCambridge #SirCliveSinclair #RetroComputing
[21/03/2023]
Image: 1636321171821002752-FrVhXUjXgAQFefP.jpg
Forget #ChatGPT and Python! Back in 1993 we used C++, 5ΒΌ floppy disks, and a lot of blood, sweat & tears to train a neural network. https://www.i4cy.com/xor_nn/ https://www.i4cy.com/xor_nn/
[16/03/2023]
Image: 1635690327049744403-FrMjn49XsA4RiEh.png
Today 14th March is National Ο Day. Learn how to calculate Ο to a million decimal places from the comfort of your own browser.
#Ο #PiDay #MeetPi
https://www.i4cy.com/pi/ https://www.i4cy.com/pi/
[14/03/2023]
Comparing the computing performance of the PIC microntroller series. #whetstone #dhrystone #pic10 #pic12 #pic16 #pic18 #pic24 #pic32
https://www.i4cy.com/pic_benchmark/https://www.i4cy.com/pic_benchmark/
[13/03/2023]
Image: 1633508369645412364-FqtijkfWAAAdPFX.jpg
Flashed a few more ICs for the Digital ESR Meter.
#Electronics #ESR #TestEquipment #TestGear
https://www.i4cy.com/m0oox/esrmeter/ https://www.i4cy.com/m0oox/esrmeter/
[08/03/2023]
Image: 1623298294586777600-FoccmoYWAAM668U.jpg
The Bailey Borwein Plouffe (BBP) algorithm for calculating Ο was discovered by Simon Plouffe in 1995. Check out https://www.i4cy.com/pi/ to see how well it performs.
#pi #bbp #algorithm #coding #javascript https://www.i4cy.com/pi/
[08/02/2023]
Image: 1623296921031917568-FocbeQXWAAEeziM.png
These lovely ladies certainly convinced me to buy a #vidor #battery.
[08/02/2023]
Image: 1619713496723365891-FnpgL3GXwAEbSIz.jpg
Finally go around to having a go programming this smart TTGO T-Watch using PlatformIO and C++. My code does nothing fancy, just a simple watch designed to prolong battery power and synchronised using an NTP server.
#lilygo #TTGO #TWATCH #PlatformIO #ESP32
[29/01/2023]
Image: 1615770205510111232-FmxeQVDWIAAWPst.jpg
Running a few simple AWK programs on my PIC32-Unix-Box for performance benchmarking purposes.
https://i4cy.com/unix_pic32/
#unix #awk #briankernighan #pic32mz #microchip http://i4cy.com/unix_pic32/
[18/01/2023]
Every year on February 7th, E-DAY celebrates the mathematical constant e, which is also called Eulerβs Number. So Iβm getting ready by writing a new techblog.
https://www.i4cy.com/euler/
#EulerDay #Euler #EulersNumber #Mathematics #Maths #DataScience #JavaScripthttps://www.i4cy.com/euler/
[05/01/
Image: 1589612262683467777-Fg9rjRtWAAEIZKF.jpg
The media are touting that #WorldPopulation will hit 8 billion on the 15th November 2022. However according to my calculations that milestone already happened last week. #8Billionpeople #8billion #overpopulation
https://www.i4cy.com/global_population/ https://www.i4cy.com/global_population/
[07/11
Image: 1575189307408936961-FdwyF5bWYAA_3DC.png
Running a neural network classifier model on a microcontroller to solve the XOR problem.
#NeuralNetwork #MachineLearning #ArtificialIntelligence #esp32
https://www.i4cy.com/xor_nn/ https://www.i4cy.com/xor_nn/
[28/09/2022]
Image: 1562756690952724480-FbAFS32WAAAisN4.png
My Lottery Simulator, helps you win the next Lotto jackpot. https://www.i4cy.com/lotto/
#Lotto #UKLotto https://www.i4cy.com/lotto
[25/08/2022]
Image: 1549388586579070977-FYCINVvXwAEStD0.jpg
Outrageous #scorchio record temperatures here in West London, UK at the moment. Iβm measuring a temperature 41Β°C outdoors in the shade, using my trusted calibrated Platinum Resistance Thermometer (PRT).
#heatwaveuk #UKHeatwave #heatwave, #heatwave2022 #ClimateEmergency
[19/07/2022]
Image: 1535181205192196096-FU4O95qWAAAPcf-.jpg
One amplifier and anti-aliasing filter immortalised in paxolin for evermore. Paired with a low cost ESP32-WROOM low-power SoC microcontroller with Bluetooth and Wi-Fi.
#electronics #esp32 #opamp #paxolin
[10/06/2022]
Image: 1528647999252987904-FTbZK_eWIAElgbT.jpg
I am using LTspice a free tool, to generate a Bode plot showing the frequency response of a circuit under development. The circuit contains an amplifier and anti-aliasing filter to condition an audio signal prior to digitization by an ADC.
#electronics #ltspice #opamp #bodeplot
[23/05/2022]
Image: 1526254229702250497-FS5XzDPXwAcqcuO.jpg
Iβve repaired and restored this lovely Gakken MY KIT 150 educational toy, made in Japan between the mid-60s and early-70s. I really-really-really wanted one of these as a kid - I now have one, though a little late.
#gakken #teachingaid #stemeducation #electronickit #learning
[16/05/2022]
Image: 1518922365434015744-FRRLpKQXIAEhsc2.jpg
One repaired and restored ANITA 811 made by Sumlock Comptometer Ltd. This calculator cost Β£75 back in 1972, thatβs Β£1,052.98 in todayβs money. Not cheap!
https://www.computinghistory.org.uk/det/31305/Anita-811-Hand-Held-Calculator/
#Comptometer #Calculators #VintageComputing http://www.computinghi
Image: 1508055363282690051-FO2wGdLWQAkUluq.jpg
Iβm all up to date on the OS front, after just receiving this automatic update from Microsoft on 5ΒΌβ floppies.
#Microsoft #MSDOS #VintageComputers
[27/03/2022]
