Add support for eHomeDIY devices. (#2046)

We have created a few dozens of devices, released as open-source hardware and
published the schematics to GitHub. We're planning to organize some small
(10-15 people) workshops on how to assemble, flash and configure these board.

https://github.com/eHomeDIY

code/espurna/config/arduino.h

@@ -27,6 +27,8 @@
 //#define BLITZWOLF_BWSHPX_V23
 //#define BLITZWOLF_BWSHP5
 //#define DIGOO_NX_SP202
+//#define EHOMEDIY_WT02
+//#define EHOMEDIY_WT03
 //#define ELECTRODRAGON_WIFI_IOT
 //#define ESPURNA_BASE
 //#define ESPURNA_CORE

code/espurna/config/hardware.h

@@ -4166,6 +4166,40 @@
 
     #define SENSOR_ENERGY_UNITS         ENERGY_KWH
     #define SENSOR_POWER_UNITS          POWER_WATTS
+
+// -----------------------------------------------------------------------------
+// eHomeDIY WT02
+// https://github.com/eHomeDIY/WT02-hardware
+// -----------------------------------------------------------------------------
+#elif defined(EHOMEDIY_WT02)
+
+    // Info
+    #define MANUFACTURER        "EHOMEDIY"
+    #define DEVICE              "WT02"
+
+    #define I2C_SDA_PIN         0
+    #define I2C_SCL_PIN         2
+
+    #define BMX280_SUPPORT        1
+    // #define SI7021_SUPPORT        1
+
+// -----------------------------------------------------------------------------
+// eHomeDIY WT03
+// https://github.com/eHomeDIY/WT03-hardware
+// -----------------------------------------------------------------------------
+
+#elif defined(EHOMEDIY_WT03)
+
+    // Info
+    #define MANUFACTURER        "EHOMEDIY"
+    #define DEVICE              "WT03"
+
+    #define I2C_SDA_PIN         2
+    #define I2C_SCL_PIN         0
+
+    #define BMX280_SUPPORT        1
+    // #define SI7021_SUPPORT        1
+
 // -----------------------------------------------------------------------------
 // Linksprite R4
 // http://linksprite.com/wiki/index.php?title=LinkNode_R4:_Arduino-compatible_WiFi_relay_controller

code/platformio.ini

@@ -1702,3 +1702,23 @@ board = ${common.board_4m}
 build_flags = ${common.build_flags_4m1m} -DLINKSPRITE_LINKNODE_R4
 upload_port = ${common.ota_upload_port}
 upload_flags = ${common.ota_upload_flags}
+
+[env:ehomediy-wt02]
+board = ${common.board_1m}
+build_flags = ${common.build_flags_1m0m} -DEHOMEDIY_WT02
+
+[env:ehomediy-wt02-ota]
+board = ${common.board_1m}
+build_flags = ${common.build_flags_1m0m} -DEHOMEDIY_WT02
+upload_port = ${common.ota_upload_port}
+upload_flags = ${common.ota_upload_flags}
+
+[env:ehomediy-wt03]
+board = ${common.board_1m}
+build_flags = ${common.build_flags_1m0m} -DEHOMEDIY_WT03
+
+[env:ehomediy-wt03-ota]
+board = ${common.board_1m}
+build_flags = ${common.build_flags_1m0m} -DEHOMEDIY_WT03
+upload_port = ${common.ota_upload_port}
+upload_flags = ${common.ota_upload_flags}