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--- pm:prj2025:iivasciuc:bogdan.ciocea [2025/05/13 23:45]
bogdan.ciocea [C4T3-LU (remote controlled land drone)]
+++ pm:prj2025:iivasciuc:bogdan.ciocea [2025/05/21 19:51] (current)
bogdan.ciocea [Software Design]
@@ Line 2: / Line 2: @@
 Designed by Ciocea Bogdan-Andrei, 333CA, May 2025 \\
 Contact: bogdan.ciocea@stud.acs.upb.ro \\
-Github: [[https://github.com/BogdanCiocea | BogdanCiocea]]
+Github: [[https://github.com/BogdanCiocea/C4T3-LU | BogdanCiocea]]
 ===== Introduction =====
 === Product description ===
@@ Line 17: / Line 17: @@
 It can move in all primary directions: **FORWARD, BACKWARD, LEFT, RIGHT**, and diagonally.
+**Update**: I added **the bomb**. Now the hand controller can activate it.
@@ Line 29: / Line 31: @@
 ===== General description =====
-{{pm:prj2025:iivasciuc:schema_c4t3lu1.jpg?600}}
-{{pm:prj2025:iivasciuc:schema_c4t3lu2.png?600}}
 The **hand controller** includes the following components:
     * [[https://www.optimusdigital.ro/ro/shield-uri-pentru-arduino/274-shiel-pentru-arduino-cu-lcd-si-tastatura-.html|LCD 1602 shield]] – displays the current action sent to the robot and provides GPIO input via buttons.
@@ Line 38: / Line 37: @@
     * [[https://ro.mouser.com/ProductDetail/Seeed-Studio/101020054?qs=1%252B9yuXKSi8BEO0W3MQ6BNA%3D%3D|Grove 3-Axis Digital Accelerometer]] - communicates via I2C to detect angle rotation
     * [[https://www.robotshop.com/products/i-o-grove-base-shield-arduino|I/O Grove Base Shield ]] – manages connections to all hardware components.
+{{pm:prj2025:iivasciuc:bogdan.ciocea:schema_c4t3lu1.jpg?600}}
 The **robot** includes the following components:
@@ Line 45: / Line 45: @@
     * [[https://sigmanortec.ro/placa-dezvoltare-esp32-cam-wifi-bluetooth-ov2640-2mp|Support for ESP32 camera module]] - can be used independently for **WiFi video streaming** or interfaced via UART/SPI if needed.
     * [[https://www.optimusdigital.ro/en/ultrasonic-sensors/9-hc-sr04-ultrasonic-sensor.html|HC-SR04 Ultrasonic Sensor]] -  obstacle detection using **digital I/O** pins (trigger and echo).
+{{pm:prj2025:iivasciuc:bogdan.ciocea:schema_c4t3lu2.png?600}}
-===== Hardware Design =====
+The **bomb** includes the following components:
+    * [[https://www.optimusdigital.ro/en/buzzers/635-3v-active-buzzer.html| Buzzer]] - a buzzer which connects to a digital port
+    * [[https://sigmanortec.ro/en/led-5mm-red | Led]] - a led which will light up to show it's active
+{{pm:prj2025:iivasciuc:bogdan.ciocea:diagram_bomb.png?600}}
-<note tip>
-Aici puneţi tot ce ţine de hardware design:
+===== Hardware Design =====
-  * listă de piese
-  * scheme electrice (se pot lua şi de pe Internet şi din datasheet-uri, e.g. http://www.captain.at/electronic-atmega16-mmc-schematic.png)
-  * diagrame de semnal
-  * rezultatele simulării
-</note>
 List of components:
@@ Line 81: / Line 80: @@
     * [[https://www.optimusdigital.ro/en/ultrasonic-sensors/9-hc-sr04-ultrasonic-sensor.html|HC-SR04 Ultrasonic Sensor]]
 {{pm:prj2025:iivasciuc:bogdan.ciocea:ultrasonic.png?600}}
+    * [[https://www.optimusdigital.ro/en/buzzers/635-3v-active-buzzer.html | Buzzer]]
+{{pm:prj2025:iivasciuc:bogdan.ciocea:buzzer.png?600}}
+    * [[https://sigmanortec.ro/en/led-5mm-red | Led]]
+{{pm:prj2025:iivasciuc:bogdan.ciocea:led.png?600}}
@@ Line 93: / Line 97: @@
 | Support for ESP32 camera module | [[https://sigmanortec.ro/placa-dezvoltare-esp32-cam-wifi-bluetooth-ov2640-2mp| Vendor]] | [[https://media.digikey.com/pdf/Data%20Sheets/DFRobot%20PDFs/DFR0602_Web.pdf | Datasheet]] | 61.32 lei|
 | HC-SR04 Ultrasonic Sensor | [[https://www.optimusdigital.ro/en/ultrasonic-sensors/9-hc-sr04-ultrasonic-sensor.html|Vendor]] | [[https://cdn.sparkfun.com/datasheets/Sensors/Proximity/HCSR04.pdf | Datasheet]] | 6.49 lei|
+| Buzzer |[[https://www.optimusdigital.ro/en/buzzers/635-3v-active-buzzer.html | Vendor]] |[[https://www.farnell.com/datasheets/2171929.pdf | Datasheet]] | 0.99 lei |
+| Led |[[https://sigmanortec.ro/en/led-5mm-red | Vendor]] | [[https://www.farnell.com/datasheets/1498852.pdf | Datasheet]] | 0.30 lei |
-Total 496.27 lei
+Total 497.56 lei
 ===== Images =====
@@ Line 104: / Line 110: @@
 ===== Software Design =====
+The code was written in ArduinoIDE.
+I used these libraries:
+    * [[https://github.com/arduino-libraries/Arduino_SensorKit/|Arduino_SensorKit]] - for communicating with the controller accelerometer
+    * [[https://github.com/arduino-libraries/LiquidCrystal|LiquidCrystal]] - for showing on a 16x02 display the commands
+    * [[https://github.com/esp8266/Arduino/tree/master/libraries/ESP8266WiFi|ESP8266WiFi]] - to know the MAC address of the boards
+    * [[https://github.com/henriberisha/EasyEspNow|espnow]] -  for communicating with the boards
+    * [[https://github.com/jrullan/neotimer | neotimer]] - a non blocking timer for not using standard delays
-<note tip>
+The software consists of 6 source files — two for each board (ESP8266 and ATmega328P on controller, robot and bomb).
-Descrierea codului aplicaţiei (firmware):
-  * mediu de dezvoltare (if any) (e.g. AVR Studio, CodeVisionAVR)
-  * librării şi surse 3rd-party (e.g. Procyon AVRlib)
-  * algoritmi şi structuri pe care plănuiţi să le implementaţi
-  * (etapa 3) surse şi funcţii implementate
-</note>
-The software consists of 4 source files — two for each board (ESP8266 and ATmega328P on both controller and robot sides).
 === 🧤 Hand Controller ==
-The **hand controller** acts as a **WiFi client**. It reads user input from buttons or an accelerometer and sends commands to the robot over WiFi.
+The **hand controller** acts as a **master**. It reads user input from buttons or an accelerometer and sends commands to the robot over ESPNOW.
 The board used combines two microcontrollers:
   * **ATmega328P** – responsible for reading button presses, sensor input or just displaying commands.
-  * **ESP8266** – handles WiFi communication by sending HTTP `GET` requests to the robot.
+  * **ESP8266** – communication by sending commands using ESPNOW to the robot.
-The `LCD shield` is used as both a display and a keyboard (for entering IP addresses when switching between multiple target devices).
+The `LCD shield` is used as a display to show the user which command is transmitted.
-The ATmega328P sends user input as a **command string** to the ESP8266, which then formats and transmits the command as an HTTP `GET` request to the robot server.
+The ATmega328P sends user input as a **command string** to the ESP8266, which then formats and transmits the command to the slaves (robot and bomb).
-== 🤖 Robot ==
+The hand controller also can activate the bomb when the arm is controlling and the **SELECT** button is pressed.
-The **robot** acts as a **WiFi server**, waiting for incoming requests from the hand controller.
+=== 🤖 Robot ===
+The **robot** acts as a **slave**, waiting for incoming requests from the hand controller.
 On receiving a command:
-  * The **ESP8266** parses the HTTP `GET` request and extracts the command string.
+  * The **ESP8266** extracts the command string.
   * It forwards this string via **USART** to the **ATmega328P**.
   * The **ATmega328P** interprets the command and activates the motors accordingly (via PWM and digital I/O signals).
-== ℹ️ Note ==
-Although HTTP is not the most efficient communication protocol for this use case, it was sufficient for proof of concept and ease of implementation.
+=== 💣 Bomb ===
+The **bomb** acts also as a **slave**.
+On receiving a command:
+  * The **ESP8266** extracts the command string.
+  * It forwards this string via **USART** to the **ATmega328P**.
+  * The **ATmega328P** interprets the command and activates the bomb.
+  * The bomb cannot be deactivated for obvious reasons.
 ===== Rezultate Obţinute =====