small updates

src/boiler.ino

@@ -1,8 +1,8 @@
 /*
  * Boiler Project
  * Paul Derbyshire - May 2018 - https://github.com/proddy/EMS-ESP-Boiler
- *
- * Acknowledgments too https://github.com/susisstrolch/EMS-ESP12 and https://github.com/jeelabs/esp-link
+ * 
+ * See Readme for Acknowledgments
  */
 
 // local libraries
@@ -23,6 +23,13 @@ void publishValues();
 void _showerColdShotStart();
 void _showerColdShotStop();
 
+// these are set as -D build flags. If you're not using PlatformIO hard code them
+//#define WIFI_SSID "<my_ssid>"
+//#define WIFI_PASSWORD "<my_password>"
+//#define MQTT_IP "<broker_ip>"
+//#define MQTT_USER "<broker_username>"
+//#define MQTT_PASS "<broker_password>" 
+
 // hostname is also used as the MQTT topic identifier (home/<hostname>)
 #define HOSTNAME "boiler"
 

src/ems.cpp

@@ -533,7 +533,7 @@ bool _process_RC20Time(uint8_t * data, uint8_t length) {
     EMS_Thermostat.month  = data[1];
     EMS_Thermostat.year   = data[0];
 
-    // now we have the time, set our ESP code to it - wil be replaced with NTP
+    // we can optional set the time based on the Thermostat's time if we want
     setTime(EMS_Thermostat.hour,
             EMS_Thermostat.minute,
             EMS_Thermostat.second,

src/emsuart.cpp

@@ -1,6 +1,6 @@
 /*
  * emsuart.cpp
- * The low level UART code for ESP8266
+ * The low level UART code for ESP8266 to read and write to the EMS bus via uart
  * Paul Derbyshire - https://github.com/proddy/EMS-ESP-Boiler
  */
 
@@ -51,7 +51,6 @@ static void emsuart_rx_intr_handler(void * para) {
 
         // copy data into transfer buffer
         pEMSRxBuf->writePtr = length;
-
         os_memcpy((void *)pEMSRxBuf->buffer, (void *)&uart_buffer, length);
 
         // set the status flag stating BRK has been received and we can start a new package
@@ -81,8 +80,7 @@ static void ICACHE_FLASH_ATTR emsuart_recvTask(os_event_t * events) {
 }
 
 /*
- * init UART0
- * This is low level ESP8266 code to manually configure the UART driver
+ * init UART0 driver
  */
 void ICACHE_FLASH_ATTR emsuart_init() {
     ETS_UART_INTR_DISABLE();