Esp Rlottie

Abstract

1. Introduction

Lottie is a JSON-based animation file. Lottie allows designers to move animations as easily as images. It is small in size, works on any device, and can be freely resized without losing resolution.

2. Objective

IDF component for using rLottie in ESP32 projects.

This project demonstrates how C++, ESP32 can be applied to a real-world Internet of Things (IoT) problem.

4. Technology Stack

5. System Requirements

General requirements for this technology stack — check the README for exact versions.

• Arduino IDE / PlatformIO or a C++ compiler (g++)
• Target board (e.g. Arduino, ESP32) where applicable
• Git (to clone the repository)

6. Installation & Setup

git clone https://github.com/0015/esp_rlottie.git
cd esp_rlottie

1. Setting Up ESP-IDF Environment:
2. Ensure that the ESP-IDF is installed and set up correctly on your development machine.
3. Follow the official ESP-IDF installation guide(https://idf.espressif.com/) to get started if you haven't already.
4. Preparing the Display Driver
5. Each hardware device is different, so you need to prepare and ensure your display driver is ready to run LVGL in the IDF environment.
6. Recommended Components:
7. espressif/esp_lvgl_port
8. espressif/esp_lcd

mkdir components
cd components
git clone https://github.com/lvgl/lvgl.git

git clone https://github.com/0015/esp_rlottie.git

your_project/
├── components/
│   ├── esp_rlottie/
│   │   ├── rlottie/
│   │   │   ├── inc/
│   │   │   ├── src/
│   │   │   ├── CMakeLists.txt
│   │   │   └── ...
│   │   └── CMakeLists.txt
│   ├── lvgl/
│   │   ├── lvgl.h
│   │   ├── env_support/
│   │   │   ├── cmake/
│   │   │   │   ├── esp.cmake
│   │   └── CMakeLists.txt
├── main/
│   ├── main.c
│   └── CMakeLists.txt
├── CMakeLists.txt
└── sdkconfig

idf_component_register(SRCS ${SOURCES} ${EXAMPLE_SOURCES} ${DEMO_SOURCES}
        INCLUDE_DIRS ${LVGL_ROOT_DIR} ${LVGL_ROOT_DIR}/src ${LVGL_ROOT_DIR}/../
                    ${LVGL_ROOT_DIR}/examples ${LVGL_ROOT_DIR}/demos
        REQUIRES esp_timer esp_rlottie)

Full setup instructions are in the project README.

7. Future Enhancements

Suggested extensions you can add to make this your own project.

• Add a mobile dashboard using Blynk or Firebase
• Store readings in a cloud database for history charts
• Add alerts via SMS / Telegram when thresholds are crossed

8. Viva / Review Questions

Common questions examiners ask for projects in this domain.

1. Which microcontroller / board and sensors are used and why?
2. How does the device send data (Wi-Fi, MQTT, HTTP, Bluetooth)?
3. Where is the sensor data stored and visualised?
4. How is power consumption managed?
5. How would you secure the device and its communication?

9. Source Code & License

This project is developed by 0015 and published on GitHub under the MIT License. Please follow the license terms and credit the original author when you use or modify this code.