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89 lines
2.7 KiB
89 lines
2.7 KiB
# Vodič za rješavanje problema s Raspberry Pi
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Ovaj vodič pruža rješenja za uobičajene probleme koji se javljaju pri radu IoT projekata na Raspberry Pi uređajima.
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Namijenjen je početnicima koji prate IoT-For-Beginners materijale, ali je koristan i za opći razvoj na Pi-u.
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---
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## 1. Pogreške pri instalaciji i ovisnostima
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### ❗ `ModuleNotFoundError: No module named 'xyz'`
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Ovo se događa kada potrebni Python moduli nisu instalirani.
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**Popravak**
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```bash
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pip3 install <module_name>
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Permission denied when running scripts
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Often caused by accessing GPIO, I2C or system hardware without elevated privileges.
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Quick fix:
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sudo python3 script.py
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Recommended fix (no sudo needed every time):
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sudo usermod -aG gpio,i2c,spi $USER
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sudo reboot
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2. GPIO / I2C / SPI Not Working
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❗ RuntimeError: No access to GPIO
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Add user to GPIO group:
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sudo usermod -aG gpio $USER
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sudo reboot
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❗ I2C / SPI devices not detected
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Enable interfaces:
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sudo raspi-config
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→ Interface Options
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→ Enable I2C / Enable SPI
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Check if I2C device appears:
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i2cdetect -y 1
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3. Camera / Video Issues
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❗ Camera not detected or fails to start
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Enable camera interface:
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sudo raspi-config
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→ Interface Options → Camera → Enable
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sudo reboot
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Check if camera is visible:
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vcgencmd get_camera
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4. Wi-Fi / SSH / Connectivity Problems
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| Problem | Fix |
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| -------------------------------- | --------------------------------------------- |
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| SSH connection refused | `sudo raspi-config → Interface Options → SSH` |
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| Device not showing on network | Check IP using: `hostname -I` |
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| Slow Wi-Fi / unstable connection | Prefer 2.4 GHz band, update OS |
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| Unable to access Pi headless | Add `ssh` file to boot partition |
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5. Performance Issues
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Raspberry Pi running slow / laggy
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Close unused applications
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Reduce background services
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Use Lite OS if no desktop needed
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Ensure sufficient power supply (5V/3A or better)
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Check CPU load:
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top
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htop
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Storage issues:
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sudo apt autoremove
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sudo apt clean
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df -h
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---
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<!-- CO-OP TRANSLATOR DISCLAIMER START -->
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**Izjava o odricanju od odgovornosti**:
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Ovaj dokument je preveden korištenjem AI prevoditeljskog servisa [Co-op Translator](https://github.com/Azure/co-op-translator). Iako se trudimo osigurati točnost, imajte na umu da automatizirani prijevodi mogu sadržavati pogreške ili netočnosti. Izvornik dokumenta na izvornom jeziku smatra se autoritativnim izvorom. Za ključne informacije preporučuje se profesionalni ljudski prijevod. Ne preuzimamo odgovornost za bilo kakva nesporazume ili kriva tumačenja proizašla iz korištenja ovog prijevoda.
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<!-- CO-OP TRANSLATOR DISCLAIMER END --> |