From 7cafe6cccb8b43d54f9bb309bc42246ad5cf1da7 Mon Sep 17 00:00:00 2001
From: Ronald Schaten <ronald@schatenseite.de>
Date: Mon, 11 Apr 2016 21:09:31 +0200
Subject: [PATCH] elegant array handling

---
 things/things.ino | 11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

diff --git a/things/things.ino b/things/things.ino
index 38a44b1..7af355a 100644
--- a/things/things.ino
+++ b/things/things.ino
@@ -19,26 +19,23 @@ DeviceLdr deviceLdr(PIN_LDR);
 #define TYPE_DHT DHT22
 DeviceDht deviceDht(PIN_DHT, TYPE_DHT);
 
-Device * devices[3];
+Device* devices[] = { &deviceLed, &deviceLdr };
 
 void setupHandler() {
-  for (int i = 0; i < 2; i++) {
+  for (int i = 0; i < sizeof(devices) / sizeof(*devices); i++) {
     devices[i]->deviceSetup();
   }
 }
 
 void loopHandler() {
-  for (int i = 0; i < 2; i++) {
+  for (int i = 0; i < sizeof(devices) / sizeof(*devices); i++) {
     devices[i]->deviceLoop();
   }
 }
 
 void setup() {
   Homie.setFirmware("things", "1.0.0");
-  devices[0] = &deviceLed;
-  devices[1] = &deviceLdr;
-  //devices[2] = &deviceDht;
-  for (int i = 0; i < 2; i++) {
+  for (int i = 0; i < sizeof(devices) / sizeof(*devices); i++) {
     devices[i]->deviceRegister();
   }
   Homie.setSetupFunction(setupHandler);