Add a new post and edit configs

Sungjin Han · Sungjin Han · commit ebec383b129d · 2019-03-20T13:41:11.000+09:00
diff --git a/_config.yml b/_config.yml
@@ -22,14 +22,14 @@ footer-links:
   facebook: meinside
   flickr: 
   github: meinside
-  instagram: 
+  instagram: frageverything
   linkedin: meinside
   pinterest: 
   rss: meinside # just type anything here for a working RSS icon, make sure you set the "url" above!
   twitter: thespeedofpain
   stackoverflow: # your stackoverflow profile, e.g. "users/50476/bart-kiers"
   youtube: user/frageverything # channel/<your_long_string> or user/<user-name>
-  googleplus: +SungjinHan # anything in your profile username that comes after plus.google.com/
+  googleplus: # anything in your profile username that comes after plus.google.com/
 
 # Enter your Disqus shortname (not your username) to enable commenting on posts
 # You can find your shortname on the Settings page of your Disqus account
diff --git a/_posts/2019-03-19-Hands-On-with-Coral-USB-Accelerator-for-Raspberry-Pi.md b/_posts/2019-03-19-Hands-On-with-Coral-USB-Accelerator-for-Raspberry-Pi.md
@@ -0,0 +1,80 @@
+---
+layout: post
+title: Hands-on with Coral USB Accelerator (for Raspberry Pi)
+tags:
+- google
+- coral
+- tpu
+- raspberry pi
+published: true
+---
+
+[Coral](https://coral.withgoogle.com/) launched [dev board](https://coral.withgoogle.com/products/dev-board/) and [usb accelerator](https://coral.withgoogle.com/products/accelerator/) a couple of weeks ago and they are now available on the store.
+
+I though the usb accelerator would be enough for me, so I ordered one of it and tested on my Raspberry Pi 3B+.
+
+----
+
+## 1. Purchase
+
+Fortunately, the shipping and delivery fee to my country was *zero* on Mouser.
+
+Ordered on Saturday and received on Monday.
+
+What an amazing delivery!
+
+## 2. Unboxing
+
+![coral_box](https://user-images.githubusercontent.com/185988/54582450-174ad800-4a54-11e9-80d3-2aa5d2b7a57c.jpg)
+
+![coral_box_contents](https://user-images.githubusercontent.com/185988/54582451-174ad800-4a54-11e9-9dde-d40ad99a511d.jpg)
+
+![coral_box_contents_rear](https://user-images.githubusercontent.com/185988/54582453-174ad800-4a54-11e9-8327-fb1b1e6db5e8.jpg)
+
+![coral_box_opened](https://user-images.githubusercontent.com/185988/54582454-17e36e80-4a54-11e9-9708-80378bfc7e8f.jpg)
+
+![coral_manual](https://user-images.githubusercontent.com/185988/54582456-17e36e80-4a54-11e9-9d33-02cdf171d8f3.jpg)
+
+## 3. Configuration
+
+Following [this guide](https://coral.withgoogle.com/tutorials/accelerator/), I downloaded and unzipped [edgetpu_api.tar.gz](https://coral.withgoogle.com/tutorials/accelerator/)
+
+and executed `python-tflite-source/install.sh`.
+
+It installed several packages, changed udev rules, and copied library files.
+
+The guide advices to plug in & out the usb accelerator, but to make sure, I just rebooted the machine.
+
+## 4. Test
+
+In the `edgetpu` directory, ran following command:
+
+{% highlight bash %}
+python3 demo/classify_image.py \
+--model test_data/mobilenet_v2_1.0_224_inat_bird_quant_edgetpu.tflite \
+--label test_data/inat_bird_labels.txt \
+--image test_data/parrot.jpg
+{% endhighlight %}
+
+and got almost the same result:
+
+{% highlight bash %}
+W0320 09:13:03.732145    6245 package_registry.cc:65] Minimum runtime version required by package (5) is lower than expected (10).
+---------------------------
+Ara macao (Scarlet Macaw)
+Score :  0.61328125
+---------------------------
+Platycercus elegans (Crimson Rosella)
+Score :  0.15234375
+{% endhighlight %}
+
+There was a warning message: `Minimum runtime version required by package (5) is lower than expected (10).`.
+
+It doesn't seem like a critical issue, but needs to be fixed sooner or later.
+
+## 5. What now?
+
+So, I got the usb accelerator and made sure it runs ok on my Raspberry Pi, but what to do now?
+
+Maybe I need to learn TensorFlow Lite and related stuffs, train my own models, and build some applications with them.
+
diff --git a/about.md b/about.md
@@ -16,6 +16,6 @@ permalink: /about/
 
 ## want to know more about me?
 
-* visit my [homepage](http://meinside.pe.kr)
+* visit my [homepage](https://meinside.dev)
 * or click social icons below.
 
