Merge pull request #32 from yuuu/add_sample_mqtt_publish

yuuu · web-flow · commit d5a244ed09ff · 2023-02-04T05:47:28.000+09:00
Add an sample that is publishing to MQTT broker.
diff --git a/README.md b/README.md
@@ -36,6 +36,7 @@ The valiable `YOU_WISH_TO_TRY_FILE` can be replaced with one of the following:
   * _simplest_mrb.rb_ - Simply prints two strings
   * _wifi_example_mrb.rb_ - An example of connecting to WiFi, you will need to
     modify this file to include your SSID and password
+  * _mqtt_publish.rb_ - An sample of publishing to MQTT broker
   * _system_mrb.rb_ - Examples of most of the system APIs
 
 The clean command will clean both the ESP32 build and the mruby build:
@@ -50,5 +51,6 @@ configuration file found in
 
 * _mruby-esp32-system_ - ESP32 system calls
 * _mruby-esp32-wifi_ - ESP32 WiFi
+* _mruby-esp32-mqtt_ - ESP32 MQTT library
 
 
diff --git a/components/mruby_component/CMakeLists.txt b/components/mruby_component/CMakeLists.txt
@@ -4,7 +4,7 @@ set(MRUBY_CONFIG ${COMPONENT_DIR}/esp32_build_config.rb)
 
 idf_component_register(
   INCLUDE_DIRS mruby/include
-  REQUIRES esp_wifi esp_hw_support esp_rom
+  REQUIRES esp_wifi esp_hw_support esp_rom mqtt
 )
 
 add_custom_command(
@@ -17,7 +17,7 @@ add_custom_command(
 
 add_prebuilt_library(
   libmruby ${LIBMRUBY_FILE}
-  PRIV_REQUIRES esp_wifi esp_hw_support esp_rom
+  PRIV_REQUIRES esp_wifi esp_hw_support esp_rom mqtt
 )
 target_link_libraries(${COMPONENT_LIB} INTERFACE libmruby)
 
diff --git a/components/mruby_component/esp32_build_config.rb b/components/mruby_component/esp32_build_config.rb
@@ -63,4 +63,6 @@
   conf.gem :core => "mruby-compiler"
   conf.gem :github => "mruby-esp32/mruby-esp32-system"
   conf.gem :github => "mruby-esp32/mruby-esp32-wifi"
+  conf.gem :github => "mruby-esp32/mruby-esp32-mqtt"
+  conf.gem :github => "mruby-esp32/mruby-io", :branch => 'esp32'
 end
diff --git a/main/examples/mqtt_publish.rb b/main/examples/mqtt_publish.rb
@@ -0,0 +1,26 @@
+wifi = ESP32::WiFi.new
+
+wifi.on_connected do |ip|
+  puts "Connected: #{ip}"
+
+  mqtt = ESP32::MQTT::Client.new('test.mosquitto.org', 1883)
+  mqtt.connect
+  mqtt.publish("mruby-esp32-mqtt", '{ "hello": "world." }')
+  mqtt.disconnect
+end
+
+wifi.on_disconnected do
+  puts 'Disconnected'
+end
+
+puts 'Connecting to wifi'
+wifi.connect('SSID', 'password')
+
+#
+# Loop forever otherwise the script ends
+#
+while true do
+  mem = ESP32::System.available_memory() / 1000
+  puts "Free heap: #{mem}K"
+  ESP32::System.delay(10000)
+end

Original file line number	Diff line number	Diff line change
`@@ -4,7 +4,7 @@ set(MRUBY_CONFIG ${COMPONENT_DIR}/esp32_build_config.rb)`
`4`	`4`
`5`	`5`	`idf_component_register(`
`6`	`6`	`INCLUDE_DIRS mruby/include`
`7`		`- REQUIRES esp_wifi esp_hw_support esp_rom`
	`7`	`+ REQUIRES esp_wifi esp_hw_support esp_rom mqtt`
`8`	`8`	`)`
`9`	`9`
`10`	`10`	`add_custom_command(`
`@@ -17,7 +17,7 @@ add_custom_command(`
`17`	`17`
`18`	`18`	`add_prebuilt_library(`
`19`	`19`	`libmruby ${LIBMRUBY_FILE}`
`20`		`- PRIV_REQUIRES esp_wifi esp_hw_support esp_rom`
	`20`	`+ PRIV_REQUIRES esp_wifi esp_hw_support esp_rom mqtt`
`21`	`21`	`)`
`22`	`22`	`target_link_libraries(${COMPONENT_LIB} INTERFACE libmruby)`
`23`	`23`