Fix no relay control bug for Sonoff Dual devices

CHANGELOG.md

@@ -3,6 +3,10 @@
 The format is based on [Keep a Changelog](http://keepachangelog.com/)
 and this project adheres to [Semantic Versioning](http://semver.org/).
 
+## [1.8.1] 2017-05-22
+### Fix
+- Issue #140. Fix no relay control bug in Sonoff Dual
+
 ## [1.8.0] 2017-05-21
 ### Added
 - Added gamma correction to RGB strips. Thanks to Chris Ward.

README.md

@@ -4,7 +4,7 @@ ESPurna ("spark" in Catalan) is a custom firmware for ESP8266 based smart switch
 It was originally developed with the **[IteadStudio Sonoff](https://www.itead.cc/sonoff-wifi-wireless-switch.html)** in mind but now it supports a growing number of ESP8266-based boards.
 It uses the Arduino Core for ESP8266 framework and a number of 3rd party libraries.
 
-**Current Release Version is 1.8.0**, read the [changelog](https://bitbucket.org/xoseperez/espurna/src/master/CHANGELOG.md).
+**Current Release Version is 1.8.1**, read the [changelog](https://bitbucket.org/xoseperez/espurna/src/master/CHANGELOG.md).
 
 ## Features
 

code/espurna/config/version.h

@@ -1,4 +1,4 @@
 #define APP_NAME                "ESPurna"
-#define APP_VERSION             "1.8.0"
+#define APP_VERSION             "1.8.1"
 #define APP_AUTHOR              "xose.perez@gmail.com"
 #define APP_WEBSITE             "http://tinkerman.cat"

code/espurna/espurna.ino

@@ -102,6 +102,9 @@ void hardwareSetup() {
     #ifdef DEBUG_PORT
         DEBUG_PORT.begin(SERIAL_BAUDRATE);
     #endif
+    #if SONOFF_DUAL
+        Serial.begin(SERIAL_BAUDRATE);
+    #endif
     #if not EMBEDDED_WEB
         SPIFFS.begin();
     #endif

code/espurna/relay.ino

@@ -36,6 +36,8 @@ unsigned char _dual_status = 0;
 
 void relayProviderStatus(unsigned char id, bool status) {
 
+    if (id >= _relays.size()) return;
+
     #if RELAY_PROVIDER == RELAY_PROVIDER_DUAL
         _dual_status ^= (1 << id);
         Serial.flush();
@@ -58,8 +60,9 @@ void relayProviderStatus(unsigned char id, bool status) {
 
 bool relayProviderStatus(unsigned char id) {
 
+    if (id >= _relays.size()) return false;
+
     #if RELAY_PROVIDER == RELAY_PROVIDER_DUAL
-        if (id >= 2) return false;
         return ((_dual_status & (1 << id)) > 0);
     #endif
 
@@ -68,7 +71,6 @@ bool relayProviderStatus(unsigned char id) {
     #endif
 
     #if RELAY_PROVIDER == RELAY_PROVIDER_RELAY
-        if (id >= _relays.size()) return false;
         bool status = (digitalRead(_relays[id].pin) == HIGH);
         return _relays[id].reverse ? !status : status;
     #endif