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Some thoughts on touch screen user interface design

Creating intuitive natural interfaces

June 24, 2020
I am working on a new app involving personal health that requires a natural intuitive interface that works well on touch screens. It's good to check out some best practices for touch UI design

Past weeks I have been working on a new app involving personal health. The main challenge is to come up with an intuitive, natural interface that works well on small touch screen devices. But what is it that makes an touch screen interface any good? Read along for some best practices.

Different ways to visualise health

Looking at games and fitness apps

May 25, 2020
To better understand how to visualise health I looked at different health/fitness apps and games.

This month I did some research into how health is visualised in fitness apps and games. For a new app involving personal health I am looking for an intuitive way to visualise how healthy one person is. There are many colourful approaches out there!

Realtime human pose recognition through computer vision

Using TensorFlow and PoseNet on a video feed

Dec. 1, 2019
For an exciting new project I have been experimenting with TensorFlow, enabling realtime pose detection using PoseNet.

For an exciting new project I have been experimenting with computer vision using TensorFlow. I wanted to achieve realtime human pose detection to drive interactive video projections and games. Time to dive into the world of machine learning, tensors and computer vision!

Updating Snake '97

About the challenges of developing a wildly popular game

Feb. 21, 2018
This month I bit the bullet big time: I redesigned the game engine of the wildly popular Snake '97 game. Read about the design challenges in this blog post.

Few years ago my brother threw a beer on my iPhone in an Amsterdam bar. The poor thing didn't like the Dutch brew as much as I do: it died. While waiting for a new phone to arrive, I used an old one that couldn't do anything but texting, calling and... Snake! The idea for Snake '97 was born and this month it was time to update the wildly popular game.

Repairing a Nintendo Gameboy Advance SP

Chip surgery to play classic Zelda

Mar. 26, 2017
Reparing an old Nintendo Gameboy Advance to play classic Zelda again.

This month Nintendo released the Switch with Zelda "Breath of the Wild". The new console received positive reviews. The new Zelda game is amazing and can be played on-the-go, thanks to the portability of the Nintendo Switch. But it its hardly the first Nintendo device that features the mythical kingdom of Hyrule with Link and princess Zelda. I found an old Gameboy Advance, perfect for playing classic Zelda games... but it was in need for repair!

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iPhone 4 - ahhh sweet developer memories when one (small) size did fit all...
iPhone 4 - ahhh sweet developer memories when one (small) size did fit all...
Thank you Ebay: an original replacement logic board for about €15
Thank you Ebay: an original replacement logic board for about €15
Snake '97 rocking the carts with Angry Birds and WhatsApp
Snake '97 rocking the carts with Angry Birds and WhatsApp
The actual code from Snake '97 handling distance calculation using the Pythagoras Theorem
The actual code from Snake '97 handling distance calculation using the Pythagoras Theorem
Programming the new game engine and testing it on an HMD Nokia 2 running Android
Programming the new game engine and testing it on an HMD Nokia 2 running Android
Snake '97 running as macOS desktop app made possible by the new scalable graphics
Snake '97 running as macOS desktop app made possible by the new scalable graphics
Clever hardware design: each button fits exactly on one position and orientation only!
Clever hardware design: each button fits exactly on one position and orientation only!
A trick the original Snake couldn't: controlling the game using a Bluetooth DualShock PlayStation controller with an analog thumbstick
A trick the original Snake couldn't: controlling the game using a Bluetooth DualShock PlayStation controller with an analog thumbstick
Wide screen gameplay is now possible thanks to the new responsive graphics
Wide screen gameplay is now possible thanks to the new responsive graphics
Spot the differences: the original faulty logic board above and the replacement on the bottom
Spot the differences: the original faulty logic board above and the replacement on the bottom
Using the right tools: a Tri-wing triangular screwdriver
Using the right tools: a Tri-wing triangular screwdriver
Doom and the protagonist
Doom and the protagonist "Mud" showing how he feels
The Activity app by Apple shows data measured by Apple Watch
The Activity app by Apple shows data measured by Apple Watch
UX-design for an international audience. Designing interfaces without words is difficult!
UX-design for an international audience. Designing interfaces without words is difficult!
World champion of Snake '97 - but not for long...
World champion of Snake '97 - but not for long...
This is what the cloud looks like, dear boys and girls.
This is what the cloud looks like, dear boys and girls.
MobileNet-SSD algorithm (image: hey-yahei.cn)
MobileNet-SSD algorithm (image: hey-yahei.cn)
Me and mini-me being recognised by the PoseNet model
Me and mini-me being recognised by the PoseNet model

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