Joshua Woehlke's Posts
Detecting Clicks on Rotated Rectangles
Normally in web application development, clicks are a matter of listeners. Either a click hit a thing or it didn’t. When using the HTML5 canvas, this isn’t the case. Images and features are rendered onto it, but you can’t attach a listener to them. Instead, you monitor where these elements visually reside versus where clicks land. If […]
Stickerbomb JS Image Editor
My team does a holiday card promotion each year, which gives us a chance to create something unusual. This year we decided on a “create your own holiday card” image editor idea. We’d specify a couple of backgrounds and design a bunch of “sticker” graphics, then users could arrange these how they liked and print off a foldable […]
Sorting Pokémon into Boxes — with Style
Update: This was shut down years ago. It only ended up getting like 8 users lol. Still, fun project. The most important thing in life is to have your pokémon arranged neatly. That’s a fact. While I understand you can just rename boxes with numbers so that Box 1 is 1-30 and Box 2 is […]
Daisy Chaining SPI on the Arduino Mega 2560
While working on a new revision of a project, I moved from an Arduino Uno to an Arduino Mega. In theory these devices should handle SPI in the same manner, just with different pins. While MOSI, MISO, and SCK are on pins 11, 12, and 13 respectively on the Uno, those change to 51, 50, […]