Move I2C into a separate component.

esp/cpp/08_dht11-lcd/.gitignore

@@ -0,0 +1,4 @@
+build
+managed_components
+dependencies.lock
+sdkconfig.old

esp/cpp/08_dht11-lcd/main/CMakeLists.txt

@@ -1,7 +1,6 @@
 idf_component_register(
     SRCS
     main.cpp
-    main.h i2c.h
+    main.h
     INCLUDE_DIRS .
-    REQUIRES driver
 )

esp/cpp/08_dht11-lcd/main/idf_component.yml

@@ -1,3 +1,5 @@
 ## IDF Component Manager Manifest File
 dependencies:
-  idf: '>=5.3.0'
+  idf: '>=5.3.0'
+  i2c:
+    path: ../../components/i2c

esp/cpp/08_dht11-lcd/main/main.cpp

@@ -13,10 +13,8 @@
 #define PIN_SCL                GPIO_NUM_22
 #define PIN_RST                (-1)
 
-I2C i2c(PIN_SDA, PIN_SCL, PIN_RST);
-
 extern "C" void app_main(void)
 {
-
+    init_i2c(PIN_SDA, PIN_SCL);
 
 }