Project/carla.popescu (#1293)

* Add project page for carla.popescu

* Add diagram and finalize documentation

* Correction done

* renamed diagram and modified bill of materials

* update diagram name in index.md

* Added schematic and modified description

* Add photos and update logs

Author: indira1505

website/versioned_docs/version-acs_cc/project/2026/carla.popescu/images/week1.webp

@@ -37,10 +37,26 @@ The system operates as a state machine with the following states:
 ## Log
 
 ### Week 5 - 11 May
+Gathered all the necessary components and set up the development environment 
+(Rust + Embassy). Started with the basic hardware setup: connected the laser 
+module and LDR to the breadboard and verified the ADC readings. Implemented 
+the software baseline calibration for the LDR.
+
+![Early hardware setup](images/week1.webp)
 
 ### Week 12 - 18 May
+Integrated the SSD1306 OLED display over I2C and the RC522 RFID module over 
+SPI. Implemented the access control logic: admin card recognition, grace 
+period, and wrong attempt counter. Connected the buzzer via PWM.
+
+![OLED displaying startup message](images/week2.webp)
+![Full system on breadboard](images/week2_2.webp)
 
 ### Week 19 - 25 May
+Finalized and tested all components together. Assembled everything into a box 
+for the presentation. The laser beam, alarm, RFID access control, and OLED 
+display all work correctly together.
+
 
 ## Hardware
 
@@ -50,7 +66,7 @@ The system operates as a state machine with the following states:
 | KY-008 Laser Module | 1 | Emits the laser beam (650nm, 5V) |
 | LDR Photoresistor (5528) | 1 | Detects laser beam interruption via ADC |
 | RC522 RFID Module | 1 | Reads MIFARE cards via SPI |
-| MIFARE Classic 1K Cards | 5 | 1 admin + 3 users + 1 invalid test card |
+| MIFARE Classic 1K Cards | 2 | 1 admin + 1 invalid test card |
 | SSD1306 OLED Display (0.96") | 1 | Displays system status via I2C |
 | Active Buzzer (5V) | 1 | Sounds the alarm |
 | BC547 NPN Transistor | 1 | Drives the buzzer from 3.3V GPIO |
@@ -97,7 +113,7 @@ The system operates as a state machine with the following states:
 | [embassy-time](https://docs.embassy.dev) | Async timers | Grace period timing, debounce |
 | [embedded-hal](https://github.com/rust-embedded/embedded-hal) | Hardware Abstraction Layer | Portable hardware interface traits |
 | [ssd1306](https://crates.io/crates/ssd1306) | OLED display driver | Rendering text and status messages |
-| [mfrc522](https://crates.io/crates/mfrc522) | RFID driver | Reading MIFARE Classic 1K card UIDs |
+| rc522 (custom driver) | Custom RC522 SPI driver | Reading MIFARE Classic 1K card UIDs via SPI |
 | [embedded-graphics](https://crates.io/crates/embedded-graphics) | 2D graphics library | Text rendering on OLED display |
 
 ## Links