Merge pull request #4 from smnmsr/main

.gitignore

@@ -3,4 +3,7 @@ __pycache__
 build
 dist
 venv
-.idea
+.idea
+Arduino_UNO_WIFI_r2/libraries/
+.vscode/arduino.json
+Arduino_UNO_WIFI_r2/secrets.h

Arduino_UNO_WIFI_r2/Arduino_UNO_WIFI_r2.ino

@@ -0,0 +1,112 @@
+#include <WiFiNINA.h>
+#include <HCSR04.h>
+#include "secrets.h"
+
+// Define variables
+const int TRIGGER_PIN = 2;   // Pin D2, Ultrasonic sensor
+const int ECHO_PIN = 5;      // Pin D5, Ultrasonic sensor
+const int LED = LED_BUILTIN; // Indicator LED
+
+const int MEASURE_CORRECTION = 9; // Added to measure value since te tabletop is higher that the sensor
+
+// Init web server with port 80
+int status = WL_IDLE_STATUS;
+WiFiServer server(80);
+
+void setup(void)
+{
+  // Enable Serial for testing purposes
+  Serial.begin(115200);
+
+  // Setup LED
+  pinMode(LED, OUTPUT);
+
+  // Setup ultrasonic sensor
+  HCSR04.begin(TRIGGER_PIN, ECHO_PIN);
+
+  // check for the WiFi module:
+  if (WiFi.status() == WL_NO_MODULE)
+  {
+    // don't continue
+    while (true)
+      ;
+  }
+
+  // setup Hostname
+  WiFi.setHostname(HOSTNAME);
+
+  // attempt to connect to WiFi network
+  Serial.print("Attempting to connect to Network named: ");
+  Serial.println(WIFI_SSID); // print the network name (SSID);
+  while (status != WL_CONNECTED)
+  {
+    // Connect to WPA/WPA2 network.
+    status = WiFi.begin(WIFI_SSID, WIFI_PSK);
+    Serial.print(".");
+    // wait 1 seconds for connection:
+    delay(5000);
+  }
+
+  // Print debug info via serial
+  Serial.println();
+  Serial.print("Connected - IP: ");
+  Serial.println(WiFi.localIP());
+
+  // start the server
+  server.begin();
+}
+
+void loop()
+{
+  WiFiClient client = server.available(); // listen for incoming clients
+
+  if (client)
+  {                               // if you get a client,
+    // Serial.println("new client"); // print a message out the serial port
+    String currentLine = "";      // make a String to hold incoming data from the client
+    while (client.connected())
+    { // loop while the client's connected
+      if (client.available())
+      { // if there's bytes to read from the client,
+
+        digitalWrite(LED, HIGH);
+        char c = client.read(); // read a byte
+        if (c == '\n')
+        { // if the byte is a newline character
+
+          // if the current line is blank, you got two newline characters in a row.
+          // that's the end of the client HTTP request, so send a response:
+          if (currentLine.length() == 0)
+          {
+            // measure the height
+            double *height = HCSR04.measureDistanceCm();
+            char response[50];
+            sprintf(response, "{ \"table_height\": %d }", (int)(*height) + MEASURE_CORRECTION);
+
+            // send height to client
+            client.println("HTTP/1.1 200 OK");
+            client.println("Content-type:text/json");
+            client.println();
+            client.println(response);
+            client.println();
+
+            // break out of the while loop:
+            break;
+          }
+          else
+          { // if you got a newline, then clear currentLine:
+            currentLine = "";
+          }
+        }
+        else if (c != '\r')
+        {                   // if you got anything else but a carriage return character,
+          currentLine += c; // add it to the end of the currentLine
+        }
+      }
+    }
+    // close the connection:
+    client.stop();
+    // Serial.println("client disconnected");
+    digitalWrite(LED, LOW);
+  }
+}

Arduino_UNO_WIFI_r2/secrets.example.h

@@ -0,0 +1,3 @@
+#define HOSTNAME "<my hostname>"
+#define WIFI_SSID "<my ssid>"
+#define WIFI_PSK "<my password>"

README.md

@@ -49,10 +49,10 @@ When the hardware is finished and powered on, it should be possible to get the t
 
 ```
 [aw-qt]
-autostart_modules = ["aw-server", "aw-watcher-afk", "aw-watcher-window", "aw-table-watcher"]
+autostart_modules = ["aw-server", "aw-watcher-afk", "aw-watcher-window", "aw-watcher-table"]
 
 [aw-qt-testing]
-autostart_modules = ["aw-server", "aw-watcher-afk", "aw-watcher-window", "aw-table-watcher"]
+autostart_modules = ["aw-server", "aw-watcher-afk", "aw-watcher-window", "aw-watcher-table"]
 ```
 
 ### DEV setup