Add versioned config support

* Allows automatic initialisation of eeprom

Signed-off-by: Mike Beattie <mike@ethernal.org>

1 files changed, 9 insertions, 6 deletions

diff --git a/HouseControl.ino b/HouseControl.ino
index 6e6ec71..a8f7650 100644
--- a/HouseControl.ino
+++ b/HouseControl.ino
@@ -13,8 +13,6 @@
 #include <EEPROM.h>
 #include "EEPROM_IO.h"
 
-#define RECONFIGURE 0
-
 /*********************************************************************************/
 /* Pin definitions                                                               */
 
@@ -405,7 +403,8 @@ void toggleDoorControl(struct st_door *door) {
 /* Setup function                                                                */
 
 void setup() {
-#if RECONFIGURE
+  byte eepromVersion;
+
   config.configVersion = 3;
 
   config.mac[0] = 0x00;
@@ -438,10 +437,14 @@ void setup() {
 
   config.dawn = 7;
   config.dusk = 21;
-  eepromWrite(0, config);
-#endif
 
-  eepromRead(0, config);
+  eepromRead(0, eepromVersion);
+
+  if (config.configVersion > eepromVersion)
+    eepromWrite(0, config);
+
+  if (config.configVersion > 0)
+    eepromRead(0, config);
 
   if(Ethernet.begin(config.mac) == 0) {
     Ethernet.begin(config.mac, config.def_ip, config.def_gateway, config.def_netmask);