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Merged
merged 2 commits into from
Feb 3, 2023
Merged

Add an sample that is publishing to MQTT broker. #32

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3069d5b
Add an sample that is publishing to MQTT broker.
yuuu Jan 29, 2023
74f7ce1
Add mruby-esp32/mruby-io to read certificates from spiffs.
yuuu Jan 29, 2023
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2 changes: 2 additions & 0 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -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:
Expand All @@ -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


4 changes: 2 additions & 2 deletions components/mruby_component/CMakeLists.txt
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Expand Up @@ -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(
Expand All @@ -16,7 +16,7 @@ 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)

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2 changes: 2 additions & 0 deletions components/mruby_component/esp32_build_config.rb
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Expand Up @@ -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
26 changes: 26 additions & 0 deletions main/examples/mqtt_publish.rb
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@@ -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