experiments

commit 7a8c80b81ae71d10d3176b419e305b89bc22b150
parent 87a94de5ee9d6dfa99597aedba3b38538a8592f5
Author: Vetle Haflan <vetle@haflan.dev>
Date:   Wed,  2 Dec 2020 18:54:10 +0100

Add Wemos D1 (Arduino) Hue experiment

Diffstat:
A
arduino/.gitignore
 | 
1
+
A
arduino/d1-mini-test.ino
 | 
72
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

2 files changed, 73 insertions(+), 0 deletions(-)
diff --git a/arduino/.gitignore b/arduino/.gitignore
@@ -0,0 +1 @@
+d1-mini-test-credentials.ino
diff --git a/arduino/d1-mini-test.ino b/arduino/d1-mini-test.ino
@@ -0,0 +1,72 @@
+#include <ESP8266WiFi.h>
+#include "d1-mini-test-credentials.ino"
+
+// Sends a request to Hue bridge on the push of a button.
+// Credentails should be put in the file 'd1-mini-test-credentials.ino' like this:
+//    const char* ssid = "secret";
+//    const char* password = "secret";
+//    const char* host = "secret";
+//    const char* url = "secret";
+
+const char* bodyOn  = "{\"bri\":254,\"on\":true}";
+const char* bodyOff = "{\"on\":false}";
+const char* cLengthOn = "21";
+const char* cLengthOff = "12";
+
+const int buttonInput = 14;
+
+bool stateOn = true;
+volatile bool processing = false;
+
+ICACHE_RAM_ATTR void buttonClicked() {
+  if (processing) return;
+  processing = true;
+  Serial.println("Button clicked");
+}
+
+void setup() {
+  pinMode(buttonInput, INPUT);
+  attachInterrupt(digitalPinToInterrupt(buttonInput), buttonClicked, FALLING);
+  Serial.begin(115200);
+  pinMode(LED_BUILTIN, OUTPUT);
+  digitalWrite(LED_BUILTIN, HIGH);  // Turn the LED off by making the voltage HIGH
+  WiFi.begin(ssid, password);
+  while (WiFi.status() != WL_CONNECTED) {  
+    delay(500);
+    Serial.println("Attempting connection...");
+  }
+  Serial.println("Connected!");
+  digitalWrite(LED_BUILTIN, LOW);   // Turn the LED on by making the voltage LOW
+}
+
+void loop() {
+  while (WiFi.status() != WL_CONNECTED) {  
+    delay(500);
+    Serial.println("Attempting reconnection...");
+  }
+  delay(100);
+  if (!processing) return;
+  
+  WiFiClient client;
+  String request = String("PUT ") + url + " HTTP/1.1\r\n" +
+                 "Host: " + host + "\r\n" +
+                 "Connection: close\r\n" +
+                 "Content-Type: application/json\r\n" +
+                 "Content-Length: " + (stateOn ? cLengthOn : cLengthOff) + "\r\n" +
+                 "\r\n" + (stateOn ? bodyOn : bodyOff);
+  if (client.connect(host, 80)) {
+    client.print(request);
+    while (client.connected() || client.available()) {
+      if (client.available()) {
+        String line = client.readStringUntil('\n');
+        Serial.println(line);
+      }
+    }
+    client.stop();
+  } else {
+    Serial.println("Communication failure :(");
+    client.stop();
+  }
+  stateOn = !stateOn;
+  processing = false;
+}