Home 3d Arduino autopower Cycle Haircutting by Post Invaders MCUs, microcontrollers Onkletator Pinhole Stories Tips Tips: Sunken Nuts Tips: MSI Black Blank Screen Tips: Diode UHF Receiver Tips: Make a hash of it Tips: Weber ash can? Illy can! About Contact

Welcome to Chisholm.nl

Some stuff to look at while you're here

The view from the Atlantis Hotel, Bahamas, to the south taken through a hole in the curtain.

Investigate the Hotel Room pin hole camera

Now take a look *inside* the room

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Android Invaders

Inspired by CBM Pet Invaders from the 1970s

Android Invaders game play

Android Invaders

Inspired by CBM Pet Invaders from the 1970s

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Arduino Auto-powerdown (and up)

Battery saving power control for MCU projects

A video of a MCU autopower on-off control circuit showing how it can save battery power.

Arduino Auto-powerdown (and up)

Battery saving power control for MCU projects

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CYCLE

Cycle, probably the best band ever!

Publicity photo of Cycle standing around the PA mixer.

CYCLE

Cycle, probably the best band ever!

Black image used for fade to black

Investigate the Hotel Room pin hole camera

Now take a look *inside* the room

Welcome, come on in and look around

Hi, this is my corner of the Interweb. You will find a mix of stuff that I have meddled with from time to time. Take a look around and see if there is anything here to interest you.

I am interested in all kinds of technology, music, DIY, etc... so you will find all sorts of stuff: microcomputers, animation, life and technology tips, and so on, this list will grow...

You will find more stuff here about Cycle, a North East UK Heavy Rock Band, than anywhere else.

If you like anything, miss anything, would like more detailed information, tutorials or whatever then feel free to get in touch by email at comments@chisholm.nl.

3D Animation

Blender, A-Frame and three.js and stuff flying in outer space

Publicity photo of Cycle standing around the PA mixer — Possibly the best band ever! - OK, I admit that I'm biassed (fourth from the left!)

A CBM Pet computer showing an Invaders game that inspired the making of Invaders in Java for Android — Cloning Invaders for Android, written in Java

The Onkletator — A synthesiser used by Cycle - Take a look inside, see it fly through the solar system

A circuit diagram from the Arduino Autopower project. — Some projects and tips using Arduino, ESP, and SAMD

Four example images relating to Tips and Things articles. — All kinds of stuff, from MS Word tips to a sink plug spanner

A hotel room pinhole camera image created in the Atlantis Hotel Nassau, Bahamas. — Turn your hotel room into a pinhole camera

A cut away diagram of a sink showing where a spanner from the Sunken Nuts tip could be useful. — Try making your own sunken nuts spanner

Part of the first page of a letter that is the two page Hair cutting by post correspondence course. — correspondence course in two pages

The 'Save Changes and Reset' page from the BIOS in an MSI laptop computer. — After using the laptop with external monitors the laptop's display is black
How do you get it back??

A germanium diode in an oscilloscop probe next to a 433MHz radio controller device. — Receive HF, VHF, UHF data signals for analysis using a Germanium Diode

A Windows command box showing CertUtil used to calculate a SHA256 file hash. — And it's free!

A Weber barbecue fitted with a huge Illy coffee can as an ash collector. — Empty less, eat more!

A coloured tile symbol. — 42. Life the universe and everything!

Background "Trees Leidsekade 97" — Andrew Chisholm ©2021 All Rights Reserved