commit fd787a05b256c1f1dfe572c8ccb92286fa781786
Author: Cameron Sharp <me@cazagen.me>
Date:   Thu Jan 24 20:36:44 2019 +0000

    First commit

diff --git a/.gitignore b/.gitignore
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index 0000000..0e56cf2
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+config.h
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..2c45490
--- /dev/null
+++ b/README.md
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+ESP8266 firmware for G8 tidiness buttons
diff --git a/buttons.cpp b/buttons.cpp
new file mode 100644
index 0000000..c6029c2
--- /dev/null
+++ b/buttons.cpp
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+#include <ESP8266WiFi.h>
+#include <PubSubClient.h>
+#include <ArduinoOTA.h>
+#include "config.h"
+
+#define WIFI_TIMEOUT 30000 // ms
+
+#define LED_PIN D1
+#define INPUT1 D2
+#define INPUT2 D5
+#define INPUT3 D6
+#define INPUT4 D7
+
+int input1_value = 0;
+int input2_value = 0;
+int input3_value = 0;
+int input4_value = 0;
+
+int led_timeout = 1000;
+
+long led_time = 0;
+
+long last_wifi_check_time = 0;
+
+long debouncing_time = 1000;
+volatile unsigned long last_micros;
+
+WiFiClient espClient;
+PubSubClient client(espClient);
+
+
+void setup_ota() {
+  // Hostname defaults to esp8266-[ChipID]
+  ArduinoOTA.setHostname(wifi_hostname);
+
+
+  ArduinoOTA.setPassword(ota_password);
+
+  ArduinoOTA.onStart([]() {
+    String type;
+    if (ArduinoOTA.getCommand() == U_FLASH) {
+      type = "sketch";
+    } else { // U_SPIFFS
+      type = "filesystem";
+    }
+
+    // NOTE: if updating SPIFFS this would be the place to unmount SPIFFS using SPIFFS.end()
+    Serial.println("Start updating " + type);
+  });
+  ArduinoOTA.onEnd([]() {
+    Serial.println("\nEnd");
+  });
+  ArduinoOTA.onProgress([](unsigned int progress, unsigned int total) {
+    Serial.printf("Progress: %u%%\r", (progress / (total / 100)));
+  });
+  ArduinoOTA.onError([](ota_error_t error) {
+    Serial.printf("Error[%u]: ", error);
+    if (error == OTA_AUTH_ERROR) {
+      Serial.println("Auth Failed");
+    } else if (error == OTA_BEGIN_ERROR) {
+      Serial.println("Begin Failed");
+    } else if (error == OTA_CONNECT_ERROR) {
+      Serial.println("Connect Failed");
+    } else if (error == OTA_RECEIVE_ERROR) {
+      Serial.println("Receive Failed");
+    } else if (error == OTA_END_ERROR) {
+      Serial.println("End Failed");
+    }
+  });
+  ArduinoOTA.begin();
+}
+
+void setup_wifi() {
+
+  delay(10);
+  // We start by connecting to a WiFi network
+  Serial.println();
+  Serial.print("Connecting to ");
+  Serial.println(ssid);
+  WiFi.hostname(wifi_hostname);
+  WiFi.mode(WIFI_STA);
+  WiFi.begin(ssid, password);
+
+  while (WiFi.status() != WL_CONNECTED) {
+    delay(100);
+    Serial.print(".");
+  }
+
+  randomSeed(micros());
+
+  Serial.println("");
+  Serial.println("WiFi connected");
+  Serial.println("IP address: ");
+  Serial.println(WiFi.localIP());
+}
+
+void reconnect() {
+  // Loop until we're reconnected
+  while (!client.connected()) {
+    Serial.print("Attempting MQTT connection...");
+    // Create a random client ID
+    String clientId = "ESP8266Client-";
+    clientId += String(random(0xffff), HEX);
+    // Attempt to connect
+    if (client.connect(clientId.c_str())) {
+      Serial.println("connected");
+      // Once connected, publish an announcement...
+    } else {
+      Serial.print("failed, rc= ");
+      Serial.print(client.state());
+      Serial.println(" try again in 1 second");
+      // Wait 1 seconds before retrying
+      delay(1000);
+    }
+  }
+}
+
+void setup() {
+  pinMode(BUILTIN_LED, OUTPUT);     // Initialize the BUILTIN_LED pin as an output
+  pinMode(LED_PIN, OUTPUT);
+  pinMode(INPUT1, INPUT_PULLUP);
+  pinMode(INPUT2, INPUT_PULLUP);
+  pinMode(INPUT3, INPUT_PULLUP);
+  pinMode(INPUT4, INPUT_PULLUP);
+
+  Serial.begin(115200);
+
+  setup_wifi();
+  setup_ota();
+
+  client.setServer(mqtt_server, 1883);
+  attachInterrupt(INPUT1, debounceInterrupt1, RISING);
+  attachInterrupt(INPUT2, debounceInterrupt2, RISING);
+  attachInterrupt(INPUT3, debounceInterrupt3, RISING);
+  attachInterrupt(INPUT4, debounceInterrupt4, RISING);
+}
+
+void debounceInterrupt1() {
+  if((long)(micros() - last_micros) >= debouncing_time * 1000) {
+    Interrupt1();
+    last_micros = micros();
+  }
+}
+
+void debounceInterrupt2() {
+  if((long)(micros() - last_micros) >= debouncing_time * 1000) {
+    Interrupt2();
+    last_micros = micros();
+  }
+}
+
+void debounceInterrupt3() {
+  if((long)(micros() - last_micros) >= debouncing_time * 1000) {
+    Interrupt3();
+    last_micros = micros();
+  }
+}
+
+void debounceInterrupt4() {
+  if((long)(micros() - last_micros) >= debouncing_time * 1000) {
+    Interrupt4();
+    last_micros = micros();
+  }
+}
+
+void Interrupt1() {
+  client.publish(outTopic, "1", true);
+  digitalWrite(LED_PIN, 1);
+  led_time = millis();
+  
+}
+
+void Interrupt2() {
+  client.publish(outTopic, "2", true);
+  digitalWrite(LED_PIN, 1);
+  led_time = millis();
+}
+
+void Interrupt3() {
+  client.publish(outTopic, "3", true);
+  digitalWrite(LED_PIN, 1);
+  led_time = millis();
+}
+
+void Interrupt4() {
+  client.publish(outTopic, "4", true);
+  digitalWrite(LED_PIN, 1);
+  led_time = millis();
+}
+
+void loop() {
+  long now = millis();
+
+  if (!client.connected()) {
+    reconnect(); // mqtt
+  }
+
+  if (now - last_wifi_check_time > WIFI_TIMEOUT) {
+    Serial.print("Checking WiFi... ");
+    if (WiFi.status() != WL_CONNECTED) {
+      Serial.println("WiFi connection lost. Reconnecting...");
+      setup_wifi();
+    } else {
+      Serial.println("OK");
+    }
+    last_wifi_check_time = now;
+  }
+
+  if (now - led_time > led_timeout) {
+    digitalWrite(LED_PIN, 0);
+  }
+
+  client.loop(); // mqtt client
+  ArduinoOTA.handle();
+}
diff --git a/config.h.dist b/config.h.dist
new file mode 100644
index 0000000..ca66faf
--- /dev/null
+++ b/config.h.dist
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+// Update these with values suitable for your network.
+
+const char* wifi_hostname = "";
+const char* ssid = "";
+const char* password = "";
+
+const char* mqtt_server = "";
+const char* outTopic = "";
+
+const char* ota_password = "";