Project/valentin.ogrezeanu

website/versioned_docs/version-acs_cc/project/2026/valentin.ogrezeanu/index.md

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+# DeskBot - Desktop Robot with Personality
+
+A small autonomous desk robot with a mood engine, face animations, and wireless control.
+
+:::info 
+
+**Author**: Ogrezeanu Valentin Alexandru \
+**GitHub Project Link**: https://github.com/UPB-PMRust-Students/acs-project-2026-valeogre
+
+:::
+
+## Description
+
+DeskBot is a small 2WD desk robot with its own personality. An OLED display acts as its face, showing different animations based on an internal mood engine — curious, happy, alert or idle — which evolves over time based on interactions. It navigates autonomously, avoids obstacles, detects desk edges, and tracks sound sources. It can also be controlled manually via a wireless IMU-based handheld controller that receives live telemetry back from the robot.
+
+## Motivation
+
+I chose this project after watching videos of small interactive robots and finding the concept genuinely interesting. The idea of a robot that feels alive through animations and behavioral states — rather than just moving around — made it stand out. Even in its first iteration, rougher and bigger than ideal, it has the potential to be a fun study buddy for a desk setup. It also covers a wide range of embedded concepts: state machines, PID control, wireless communication, sensor fusion and real-time display rendering, all in Rust.
+
+## Architecture 
+
+**Main components:**
+
+- **STM32 Nucleo-U545RE-Q** - central microcontroller, runs all logic
+- **State Machine** - core behavioral engine, manages transitions between IDLE, ROAMING, ALERT, HAPPY, CONTROLLED states
+- **Mood Engine** - internal variables (energy, curiosity, sociability) that evolve based on interactions and environment
+- **Navigation Module** - ultrasonic sweep on servo + IR edge detection + LDR + closed-loop PID on encoders
+- **Sound Tracker** - two microphones, detects sound direction and orients the robot toward it
+- **OLED Face** - renders animations and info dashboard based on current state
+- **Wireless Link** - nRF24L01 bidirectional communication between robot and handheld
+- **Handheld Controller** - MPU6050 IMU for tilt-based gesture control + OLED for live telemetry
+
+**Connections:**
+State machine owns the global robot state. All other modules communicate with it via Embassy channels and signals — no shared state directly between tasks.
+
+## Log
+
+### Week 5 - 11 May
+
+### Week 12 - 18 May
+
+### Week 19 - 25 May
+
+## Hardware
+
+
+### Schematics
+
+*KiCAD schematics to be added*
+
+## Software
+
+
+
+## Links
+
+1. https://www.youtube.com/watch?v=ktWnwJ-e-_w
+2. https://www.youtube.com/watch?v=3hjvpyjxPsk