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--- iothings:proiecte:2025sric:smartcar [2025/05/29 09:54]
andrei.tulpan [Hardware]
+++ iothings:proiecte:2025sric:smartcar [2025/05/29 10:12] (current)
andrei.tulpan [Prototype]
@@ Line 7: / Line 7: @@
 ====== Introduction ======
-SmartCar is an innovative hardware-software solution designed to bring modern vehicle intelligence to any car, especially the old ones. By plugging a compact, futuristic OBD-II device into the car’s diagnostic port, SmartCar captures real-time data from the vehicle’s CAN network and integrates WIFI connectivity to transmit insights to a secure cloud-based backend. The companion mobile app gives users instant access to detailed insights about their car’s health, fuel consumption, driving habits, trip history, and more-all in an intuitive interface.
+**SmartCar** is an innovative hardware-software solution designed to bring modern vehicle intelligence to any car, especially the old ones. By plugging a compact, futuristic OBD-II device into the car’s diagnostic port, SmartCar captures real-time data from the vehicle’s CAN network and integrates WIFI connectivity to transmit insights to a secure cloud-based backend. The companion mobile app gives users instant access to detailed insights about their car’s health, fuel consumption, driving habits, trip history, and more-all in an intuitive interface.
+🔗 **[Frontend Demo]** (https://smartcar.thezion.one)
+💻 **[GitHub Repository]** (https://github.com/andreitulpan/smart-car_esp32)
 ====== Context ======
 A smart car telemetry and diagnostics system for ESP32, featuring CAN bus data acquisition, BLE and WiFi connectivity, OTA updates, and Firebase integration.
-**Features**
+✨**Features**
   * **CAN Bus Support:** Reads vehicle data via MCP2515 CAN controller.
   * **BLE Communication:** Allows configuration and commands via Bluetooth Low Energy.
@@ Line 21: / Line 25: @@
   * **Logging:** Flexible logging system with optional Firebase upload.
-**Usage**
+⚙️**Usage**
   * On first boot, use BLE to send WiFi credentials (`WIFI,<SSID>,<PASSWORD>`).
   * The device will connect to WiFi, sync time via NTP, and start sending CAN data to Firebase.
   * For further configuration hold the button for 3 seconds to enable BLE.
-**Commands (via BLE)**
+📲**Commands (via BLE)**
   * **`WIFI,<SSID>,<PASSWORD>`**: Set WiFi credentials.
   * **`CLEAR_EEPROM`**: Clear stored credentials.
   * **`DISABLE_BLE`**: Disable BLE interface.
-**Customization (via UI)**
+🛠️**Customization (via UI)**
   * **CAN PIDs:** Configure supported PIDs.
   * **REQUEST INTERVAL:** Configure the request interval for CAN network.
@@ Line 40: / Line 44: @@
 ====== Hardware ======
-**Components**
+🧩 **Components**
   * ESP32 development board
   * MCP2515 CAN bus module
@@ Line 47: / Line 51: @@
   * OBD II Port
   * Power Switch
+  * Hi-Link (9-36V to 5V)
 | Function         | ESP32 Pin | Description                |
@@ Line 78: / Line 83: @@
 Developed using the **Arduino Framework**, with the following libraries:
-  * **[`jandrassy/TelnetStream@^1.3.0`]**(https://github.com/jandrassy/TelnetStream) – Telnet-based debugging and serial stream
+  * **jandrassy/TelnetStream@^1.3.0** – Telnet-based debugging and serial stream
-  * **[`mobizt/Firebase Arduino Client Library for ESP8266 and ESP32@^4.4.17`]**(https://github.com/mobizt/Firebase-ESP-Client) – Interface for Firebase Realtime Database
+  * **mobizt/Firebase Arduino Client Library for ESP8266 and ESP32@^4.4.17** – Interface for Firebase Realtime Database
-  * **[`mobizt/FirebaseJson@^3.0.9`]**(https://github.com/mobizt/FirebaseJson) – Lightweight JSON handler for embedded devices
+  * **mobizt/FirebaseJson@^3.0.9** – Lightweight JSON handler for embedded devices
-  * **[`coryjfowler/mcp_can@^1.5.1`]**(https://github.com/coryjfowler/MCP_CAN_lib) – MCP2515 CAN bus interface library for OBD-II data access
+  * **coryjfowler/mcp_can@^1.5.1** – MCP2515 CAN bus interface library for OBD-II data access
 ====== Challenges ======
-====== References ======
+Integrating all the advanced features into a single ESP32 board pushed the microcontroller to its **operational limits**. When all major systems are active — including **WiFi**, **Firebase communication**, **Bluetooth Low Energy (BLE)**, and **real-time logging** — the ESP32 begins to exhibit **instability**, such as **random exceptions** and **core dumps**.
+These issues are likely caused by **limited RAM and processing capacity**, making resource optimization and careful task scheduling essential for reliable performance.
+====== Prototype ======
+{{:iothings:proiecte:2025sric:smartcar_prototype.jpg?800 |}}
+====== References ======
+  * [[https://ocw.cs.pub.ro/courses/iothings/laboratoare/2022/lab4]]
+  * [[https://ocw.cs.pub.ro/courses/iothings/laboratoare/2022/lab5]]
+  * [[https://randomnerdtutorials.com/esp32-firebase-realtime-database/]]
+  * [[https://github.com/coryjfowler/MCP_CAN_lib]]
+  * [[https://github.com/mobizt/FirebaseJson]]
+  * [[https://github.com/mobizt/Firebase-ESP-Client]]
+  * [[https://github.com/jandrassy/TelnetStream]]