Darrell Chua

Eight Falsehoods Programmers Believe About Map Coordinates

Maps are not as straightforward as they appear. They are really an approximation which can sometimes be misleading because the Earth is not a perfect shape.

Building a Slack-Connected Raspberry Pi Doorbell

Ever wanted to build a quick Internet-of-Things device? This is a quick tutorial of how to get a Raspberry Pi up and running as a simple doorbell that responds to simple Slack commands.