248 lines
2.6 KiB
Markdown
248 lines
2.6 KiB
Markdown
# Speedtest_Display_Rasberry_Pi
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# Raspberry Pi 3 – TFT-Framebuffer Speedtest Display
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## 1. Raspberry Pi OS installieren
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Empfohlen:
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- Raspberry Pi OS Lite (64 Bit)
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Mit Raspberry Pi Imager auf die SD-Karte schreiben.
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Während des Flashens direkt konfigurieren:
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- WLAN
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- SSH aktivieren
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- Hostname setzen
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---
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## 2. System aktualisieren
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```bash
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sudo apt update
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sudo apt full-upgrade -y
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sudo reboot
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```
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---
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## 3. SPI aktivieren
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```bash
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sudo raspi-config
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```
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Dann:
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```text
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Interface Options
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→ SPI
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→ Enable
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```
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Neustarten:
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```bash
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sudo reboot
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```
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---
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## 4. Prüfen ob SPI aktiv ist
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```bash
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ls /dev/spi*
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```
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Erwartet:
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```text
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/dev/spidev0.0
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/dev/spidev0.1
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```
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---
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## 5. TFT-Display aktivieren
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Datei öffnen:
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```bash
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sudo nano /boot/firmware/config.txt
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```
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Ganz unten ergänzen:
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```ini
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dtparam=spi=on
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dtoverlay=piscreen,speed=16000000,rotate=270
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```
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---
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## 6. Framebuffer aktivieren
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Neustart:
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```bash
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sudo reboot
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```
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Danach prüfen:
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```bash
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ls /dev/fb*
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```
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Erwartet:
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```text
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/dev/fb0
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```
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---
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## 7. Testbild auf Framebuffer
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```bash
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sudo apt install -y fbi
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```
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Test:
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```bash
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sudo fbi -T 1 -d /dev/fb0 -noverbose test.jpg
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```
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---
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## 8. Python installieren
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```bash
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sudo apt install -y python3 python3-pip python3-pil python3-numpy
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```
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---
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## 9. DejaVu Fonts installieren
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```bash
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sudo apt install -y fonts-dejavu-core
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```
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Prüfen:
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```bash
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ls /usr/share/fonts/truetype/dejavu/
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```
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---
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## 10. InfluxDB Python Client installieren
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```bash
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pip3 install --break-system-packages influxdb-client
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```
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---
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## 11. Python-Datei anlegen
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```bash
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nano /home/hubobel/down.py
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```
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Python-Code einfügen und speichern.
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---
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## 12. Testlauf
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```bash
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python3 /home/hubobel/down.py
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```
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Jetzt sollte sichtbar sein:
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- Downloadrate
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- Uploadrate
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- Ping
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- WLAN-IP
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- WAN-IP
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- Verlaufsgrafik
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---
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## 13. systemd Service anlegen
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```bash
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sudo nano /etc/systemd/system/down.service
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```
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Inhalt:
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```ini
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[Unit]
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Description=Framebuffer Speedtest Display
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After=network-online.target
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[Service]
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Type=simple
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User=hubobel
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WorkingDirectory=/home/hubobel
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ExecStart=/usr/bin/python3 /home/hubobel/down.py
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Restart=always
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RestartSec=5
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[Install]
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WantedBy=multi-user.target
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```
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---
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## 14. Service aktivieren
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```bash
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sudo systemctl daemon-reload
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sudo systemctl enable down.service
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sudo systemctl start down.service
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```
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---
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## 15. Status prüfen
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```bash
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systemctl status down.service
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```
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Live-Log:
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```bash
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journalctl -u down.service -f
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```
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---
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## 16. Nach Reboot testen
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```bash
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sudo reboot
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```
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---
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# Ergebnis
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Das System läuft danach:
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- ohne Desktop
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- direkt auf `/dev/fb0`
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- rebootfest über systemd
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- ressourcenschonend
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- ideal für Embedded-Statusanzeigen
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