I am following the guide "How to Read Temperature and Humidity from HTU21D Sensor Using Rest Calls in C for Arduino Yun". I clicked the hyperlink and it goes to PTC IoT Academic Program | ThingWorx. Where do I download the Rest_API_Arduino.ino at the webpage?
Your learning resources and website, makes it complicated for us beginners to learn. I am also looking for documentation for Rest API and I can't find it at ThingWorx website.