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pm:prj2026:jan.vaduva:silvia.berescu [2026/05/23 17:03] silvia.berescu [Software Design] |
pm:prj2026:jan.vaduva:silvia.berescu [2026/05/23 22:38] (current) silvia.berescu [Hardware Progress] |
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| {{ :pm:prj2026:jan.vaduva:hardware_progress.jpeg?600 |Assembled Robot}} | {{ :pm:prj2026:jan.vaduva:hardware_progress.jpeg?600 |Assembled Robot}} | ||
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| The image shows the fully wired robot with all components mounted and powered via the 2x18650 battery pack (7.4V). | The image shows the fully wired robot with all components mounted and powered via the 2x18650 battery pack (7.4V). | ||
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| //To be added after final maze test// | //To be added after final maze test// | ||
| - | ==== Lab Concepts Used ==== | ||
| - | |||
| - | ^ Lab concept ^ Usage in project ^ | ||
| - | | **GPIO** | TRIG/ECHO sensor pins, motor direction pins IN1–IN4 | | ||
| - | | **PWM** | Timer0 Fast PWM on OC0A (D6) and OC0B (D5) — both motors | | ||
| - | | **I2C** | TWI communication with LCD 16x2 via PCF8574 on A4/A5 | | ||
| - | | **Interrupts** | INT1 on D3 (PD3) for precise front ECHO pulse measurement | | ||
| - | |||
| - | ==== Navigation Algorithm ==== | ||
| - | |||
| - | The robot uses the **Left-Hand Wall Follower** algorithm: | ||
| - | |||
| - | - If left is **free** (distance > 20cm): turn left 90° + move forward | ||
| - | - Else if front is **free** (distance > 20cm): move forward | ||
| - | - Else: turn right 90° | ||
| - | |||
| ===== Results ===== | ===== Results ===== | ||
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| | Week 2 | Chassis assembly, mounting motors and wheels | Done | | | Week 2 | Chassis assembly, mounting motors and wheels | Done | | ||
| | Week 3 | L298N wiring + electrical schematic | Done | | | Week 3 | L298N wiring + electrical schematic | Done | | ||
| - | | Week 4 | HC-SR04 integration + distance measurement test | Planned | | + | | Week 4 | HC-SR04 integration + LCD I2C integration | Done | |
| - | | Week 5 | LCD I2C integration + data display | Planned | | + | | Week 5 | Navigation algorithm implementation + maze test | Planned | |
| - | | Week 6 | Navigation algorithm implementation + maze test | Planned | | + | | Week 6 | Code optimization, final demo | Planned | |
| - | | Week 7 | 90° turn calibration, code optimization, final demo | Planned | | + | |
| ===== Bibliography / Resources ===== | ===== Bibliography / Resources ===== | ||
