https://dchua.com/tags/iot/ Recent content in iot on davidchua Hugo -- gohugo.io en-us Mon, 24 Mar 2014 00:00:00 +0000 https://dchua.com/posts/2014-03-24-tip-access-your-raspberry-pi-udoo-via-serial/ Mon, 24 Mar 2014 00:00:00 +0000 https://dchua.com/posts/2014-03-24-tip-access-your-raspberry-pi-udoo-via-serial/ Learnt today that it is possible to have a direct output from most minipc boards w/o having to ssh in and dmesg, or hook up another monitor to it, just to find out what’s going on. This is especially useful if you only have one monitor and don’t want to go through the trouble of switching both your keyboard/mouse combo and the monitor everytime you want to troubleshoot it (without sshing; if the internet connection is what you’re trying to troubleshoot). https://dchua.com/posts/2014-03-15-got-the-adafruit-pitft-working/ Sat, 15 Mar 2014 00:00:00 +0000 https://dchua.com/posts/2014-03-15-got-the-adafruit-pitft-working/ Woohoo, got the Adafruit PiTFT working on our Raspberry Pis. What would be the best way to display content on the screen? Develop a simple python GUI app? Is there a way to render a fullscreen HTML page directly to the screen, or is there an easier way to do this? https://dchua.com/posts/2014-01-15-upnp-igp/ Wed, 15 Jan 2014 00:00:00 +0000 https://dchua.com/posts/2014-01-15-upnp-igp/ #TIL in more detail how networked devices auto expose their listening ports to the external world without any user interaction on their routers. Key: Router UPnP allowing NAT traversal using the IGD Protocol. There’s even a ruby lib that helps you talk to your router to forward a port to a device behind NAT. Reference: Security Stackexchange https://dchua.com/posts/2014-01-12-3d-printing-and-my-alma-mater-singapore-polytechnic/ Sun, 12 Jan 2014 18:32:25 +0800 https://dchua.com/posts/2014-01-12-3d-printing-and-my-alma-mater-singapore-polytechnic/ Last week, I had the opportunity to drop by my Alma Mater where I’ve spent 3 years of my post-secondary school education picking up Electronics, Computer and Communication Engineering. Its been a good 9 years since graduating and so much have changed. The buildings that I remember are mostly renovated (and is still renovating) and the entire campus is full of little construction sites, both demolition and construction. I was in Singapore Polytechnic, not out of randomness but to exhibit Fabbox a cloud-based total 3D Printing solution that my cousin and his friends started.