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--- iothings:proiecte:2023:hometempcontrol [2024/01/15 12:04]
mihai.preda1808 wip add photos
+++ iothings:proiecte:2023:hometempcontrol [2024/01/16 13:34] (current)
mihai.preda1808
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   * Email: <mihai.preda1808@stud.energ.upb.ro>
   * Master: SSA
+  * Presentation: {{:iothings:proiecte:2023:home_assistant_ac_control.pptx}}
 =====Introduction=====
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 {{:iothings:proiecte:2023:circuit.png?400|}}
 {{:iothings:proiecte:2023:pcb.png?400|}}
+Due to resource limitations, I soldered the components to a breadboard for the final product despite having a designed PCB.
 {{:iothings:proiecte:2023:circuit_soldering.jpeg?400|}}
+The result wasn't perfect, but it got the job done. The DHT sensor was moved to the other side of the PCB due to the heat emitted by the ESP32-C3, which could interfere with its readings.
 {{:iothings:proiecte:2023:fat_pcb.jpeg?400|}}
 {{:iothings:proiecte:2023:pcb_front.jpeg?400|}}
+In order to ensure a reliable wifi signal throughout the house, a 2.4GHz antenna was added using the antenna port on the ESP32-C3 board.
 ===Enclosure Design===
@@ Line 38: / Line 47: @@
 ===Final product===
+The result is a device powered by USB-C that can read temperature, humidity, receive and emit IR signals.
 {{:iothings:proiecte:2023:final_product.jpeg?400|}}
 =====Software=====
-===Schema===
+===Infrastructure Schema===
+The infrastructure consists of Home Assistant, ESPHome, local devices, a third-party cloud service that securely exposes the Home Assistant server to authorized mobile devices, Amazon Alexa cloud for voice assistant capabilities, the local IR capable devices, and an IR controller that was built.
 {{:iothings:proiecte:2023:schema.png?400|}}
 ===Home Assistant===
+The Home Assistant is a great tool to automatize and manage your entire home. It has a large community, frequent updates, and has been thoroughly tested. For this project, we hosted the Home Assistant server on a Raspberry Pi 4B with 8GB of RAM.
 {{:iothings:proiecte:2023:pi_cluster.jpeg?400|}}
+My goal was to achieve the following automation using the IR Controller:
 {{:iothings:proiecte:2023:automations.png?400|}}
 ===ESPHome===
+ESPHome is a standalone project integrated with Home Assistant, offering a platform for all ESP compatible boards. From functionality wrappers to OTA updates, ESPHome covers everything.
 {{:iothings:proiecte:2023:esp_home_setup.png?400|}}
 {{:iothings:proiecte:2023:esphome_ota.png?400|}}
 {{:iothings:proiecte:2023:ha_esp_ir_controller.png?400|}}
 ===The IR Controller===
+To extract the AC's remote values, I initially utilized `remote_receiver` from ESPHome, which is essentially a wrapper around IRremoteESP8266. However, it turned out that the ESPHome project had not updated its packages to support ESP32-C3 for this specific component. Due to the ESP32-C3's small footprint, the RMT architecture was slightly altered, providing only two channels for receiving and two for transmitting (by default, ESP32 has four channels for each mode). ESPHome software did not provide a way to select the RMT channels manually, and most of the time, an unsupported channel was assigned, causing the implementation not to work as expected.
 {{:iothings:proiecte:2023:esp32c3_rmt.png?400|}}
-{{:iothings:proiecte:2023:sensor_logs.png?400|}}
+To resolve the RMT problem, I encountered a [[https://github.com/Jorre05|solution]] on a GitHub issue. It involved adding the capability to define RMT. However, since I also required 'remote_transmitter', I had to find a similar workaround, which I have now made publicly available on [[https://github.com/predam/remote_transmitter|GitHub]] as well.
+After resolving the compatibility issues, the next step was to read the signals transmitted by the AC remote. To achieve this, I enabled the dumping of all logs from the receiver. Fortunately, the IR component from ESPHome had a lot of pre-decoded messages. As shown in the logs, I was able to use these existing records of IR signals. If I hadn't been lucky enough to have these pre-decoded messages, I would have had to decode all the remote buttons and sequences myself.
 {{:iothings:proiecte:2023:esphome_esp32_ir_dump.png?400|}}
+I found it great to be able to turn my AC unit on and off, but having full control over all its functionalities is even better. To achieve this, I set up ESPHome's `climate` component, which acts as a wrapper around `HeatpumpIR`. After flashing new firmware using OTA, I was able to fully control my AC using the Home Assistant interface!
+{{:iothings:proiecte:2023:sensor_logs.png?400|}}
 {{:iothings:proiecte:2023:eps_ha_ring.png?400|}}
+**The IR Controller configuration**
 <code>
@@ Line 158: / Line 196: @@
 </code>
+===Integrations===
+After integrating the AC control with Home Assistant, I was able to easily connect with Alexa voice assistant ( also thanks to the cloud access of my Home Assistant installation) and create all the suggested automation mentioned in the Home Assistant section.
 =====Conclusion=====
+In conclusion, the ESP32-C3 is a fantastic small-sized board that can be seamlessly integrated with a variety of sensors. This project demonstrated how easy it is to set up and perform OTA updates using this board, as well as how the board can attain IR capabilities. Additionally, the project highlighted the infinite possibilities for automating tasks using Home Assistant.
 =====Resources=====