diff --git a/code/espurna/config/hardware.h b/code/espurna/config/hardware.h
index 46760057..15af90a6 100644
--- a/code/espurna/config/hardware.h
+++ b/code/espurna/config/hardware.h
@@ -26,7 +26,7 @@
 //#define ENABLE_NOFUSS         1
 
 // -----------------------------------------------------------------------------
-// NODEMCUv2 development board
+// Development boards
 // -----------------------------------------------------------------------------
 
 #if defined(NODEMCUV2)
@@ -38,6 +38,14 @@
 	#define LED1_PIN            2
     #define LED1_PIN_INVERSE    1
 
+#elif defined(D1_RELAYSHIELD)
+
+    #define MANUFACTURER        "WEMOS"
+    #define DEVICE              "D1_MINI"
+    #define RELAY1_PIN          5
+	#define LED1_PIN            2
+    #define LED1_PIN_INVERSE    1
+
 // -----------------------------------------------------------------------------
 // Itead Studio boards
 // -----------------------------------------------------------------------------
diff --git a/code/espurna/data/index.html.gz b/code/espurna/data/index.html.gz
index 29724261..2e18235d 100644
Binary files a/code/espurna/data/index.html.gz and b/code/espurna/data/index.html.gz differ
diff --git a/code/platformio.ini b/code/platformio.ini
index 6d755c66..3f36291a 100644
--- a/code/platformio.ini
+++ b/code/platformio.ini
@@ -1,5 +1,5 @@
 [platformio]
-env_default = node-debug
+env_default = d1-debug
 src_dir = espurna
 data_dir = espurna/data
 
@@ -28,6 +28,27 @@ lib_ignore = FauxmoESP, ESPAsyncUDP
 
 # ------------------------------------------------------------------------------
 
+[env:d1-debug]
+platform = espressif8266
+framework = arduino
+board = d1_mini
+lib_deps = ${common.lib_deps}
+lib_ignore = ${common.lib_ignore}
+extra_script = pio_hooks.py
+build_flags = -g -DD1_RELAYSHIELD -DDEBUG_PORT=Serial -DNOWSAUTH
+
+[env:d1-debug-ota]
+platform = espressif8266
+framework = arduino
+board = d1_mini
+lib_deps = ${common.lib_deps}
+lib_ignore = ${common.lib_ignore}
+extra_script = pio_hooks.py
+build_flags = -g -DD1_RELAYSHIELD -DDEBUG_PORT=Serial -DNOWSAUTH
+upload_speed = 115200
+upload_port = "192.168.4.1"
+upload_flags = --auth=fibonacci --port 8266
+
 [env:node-debug]
 platform = espressif8266
 framework = arduino