Board definition for the Gosund WP3 smart socket (#2191)

Co-authored-by: ziggurat29 <xxx@yyy.zzz>

code/espurna/board.ino

@@ -648,6 +648,8 @@ int getBoardId() {
         return 155;
     #elif defined(GENERIC_ESP01_512KB)
         return 156;
+    #elif defined(GOSUND_WP3)
+        return 157;
     #else
         return -1; // CUSTOM
     #endif

code/espurna/config/arduino.h

@@ -60,6 +60,7 @@
 //#define GENERIC_GU10
 //#define GENERIC_V9261F
 //#define GIZWITS_WITTY_CLOUD
+//#define GOSUND_WP3
 //#define GOSUND_WS1
 //#define GREEN_ESP8266RELAY
 //#define HAMA_WIFI_STECKDOSE_00176533

code/espurna/config/hardware.h

@@ -3242,6 +3242,38 @@
     #define HLW8012_POWER_RATIO         3580841
     #define HLW8012_INTERRUPT_ON        FALLING
 
+// -----------------------------------------------------------------------------
+// The Gosund WP3 is based on ESP8285, so 1 MB internal flash (DOUT required)
+// The module has no-connect:  TX, RX, RST, AD, GPIO5, (and GPIO0, 
+//     GPIO2 via test points on the back of the module)
+// and these are wired to devices:
+// GPIO4: /BTN
+// GPIO12: /LED blue
+// GPIO13: /LED red
+// GPIO14: RELAY
+// -----------------------------------------------------------------------------
+
+#elif defined(GOSUND_WP3)
+
+    // Info
+    #define MANUFACTURER                "GOSUND"
+    #define DEVICE                      "WP3"
+
+    // Buttons
+    #define BUTTON1_PIN                 4
+    #define BUTTON1_CONFIG              BUTTON_PUSHBUTTON | BUTTON_DEFAULT_HIGH
+
+    // Relays
+    #define RELAY1_PIN                  14
+    #define RELAY1_TYPE                 RELAY_TYPE_NORMAL
+
+    // LEDs
+    #define LED1_PIN                    12
+    #define LED1_PIN_INVERSE            1
+
+    #define LED2_PIN                    13
+    #define LED2_PIN_INVERSE            1
+
 // -----------------------------------------------------------------------------
 // Several boards under different names uing a power chip labelled BL0937 or HJL-01
 // Also model number KS-602S

code/platformio.ini

@@ -809,6 +809,10 @@ build_flags = ${common.build_flags_1m0m} -DTECKIN_SP22_V14
 board = ${common.board_1m}
 build_flags = ${common.build_flags_1m0m} -DTECKIN_SP23_V13
 
+[env:gosund-wp3]
+board = ${common.board_1m}
+build_flags = ${common.build_flags_1m0m} -DGOSUND_WP3
+
 [env:gosund-ws1]
 board = ${common.board_1m}
 build_flags = ${common.build_flags_1m0m} -DGOSUND_WS1