Updated README.md

README.md

@@ -1,5 +1,5 @@
 # GuideMe 
-## The ultimate solution for improving elderly or disabled pedestrian mobility in a connected city.s
+## The ultimate solution for improving elderly or disabled pedestrian mobility in a connected city
 
 ![GuideMe visual interface](./images/gui.jpg)
 
@@ -19,3 +19,17 @@ Using the live data of the Tampere city its realistic to send live information o
 The system could be implemented as well in public buildings such as hospitals, train stations... having an indoor beacon-based guidance system.
 
 Some extra features could be inductive charge and LED flashlight to improve visibility in dark areas.
+
+# Development of the proof of concept prototype
+We have develope a proof of concept prototype in order to test and demostrate the technology. The proof of concept walking stick mainly consist on an smart handle with some electronics as a LED matrix with a digital compass (MicroBit) and a WiFi node to transmit all the information between the GuideMe smart stick and the web app server and GUI.
+
+![Block Diagram GuideMe](./images/diagram.jpg)
+
+The handle electronics consist on a MicroBit board with a 5x5 LED matrix and a digital compass connected to a ESP8266 WiFi microcontroller acting as a IoT node for transmiting the information from and to the server. All that hardware is integrated on a 3D printed handle as an enclosure with the stick.
+
+![Proof of concept](./images/guideme_poc_1.jpg)
+
+We have also developed a graphical user interface for demo purpose that shows on real time the location of the elderly person holding the stick. That could be used by adults to know the location of their relatives.
+
+The web application is updated on every movement the elder person does and is able to optimize the best way to reach the objective location.
+