Raspberry pi5 💭

inherited Pi 5 + Pironman 5

Service	Manage
Watchdog 🐕‍🦺
Tailscale	🏠
Hermes	`hermes dashboard` + ssh port forward
Telegram
nginx	:80
php	php
	hello
	Nav
cups	:631

# project 💭 🚧

Use it to host a Hermes Agent accessible from anywhere

- give it a static ip (secondary?) 🚧
- it boots on nvme drive - so secondary may be helpfull as fallback

# Notes

Appears as pi2/pi3 on nmap scan

MAC Address: 7E:AB:F1:0E:85:C3 (Unknown)
Nmap scan report for raspberrypi3.home (192.168.0.30)

# OS

Raspberry Pi OS (64-bit), Bookworm-based, on Raspberry Pi 5
$ systemctl get-default => graphical.target

$ hostnamectl 
 Static hostname: raspberrypi
       Icon name: computer
      Machine ID: be0ce139b3e64d9d9c122eb460a1d040
         Boot ID: 7862ae885aac4468adfbf3d75c611f96
Operating System: Debian GNU/Linux 12 (bookworm)  
          Kernel: Linux 6.6.62+rpt-rpi-2712
    Architecture: arm64

# Pironman 5 ⮺

# Software ⮺

Setting Up on Raspberry Pi OS/Ubuntu/Kali Linux/Homebridge

# OLED ⮺ 🚧 ⛑

Ecran OLED ~~1.3”~~ 0.96” nappe 30 pin - visible coté écran
pin 1 en haut avec ecrant visible coté droit.
SH1106 / GME12864-44

Troubleshooting OLED display

$ sudo i2cdetect -y 1
should output 3c somewhere (it does not)

$ ls /dev/i2c*
should list device => it does

$ sudo dmesg | grep -i i2c
[    0.987774] brcmstb-i2c 107d508200.i2c:  @97500hz registered in interrupt mode
[    1.013905] brcmstb-i2c 107d508280.i2c:  @97500hz registered in interrupt mode
[    2.869550] i2c_dev: i2c /dev entries driver
[   21.694662] i2c_designware 1f00074000.i2c: i2c_dw_handle_tx_abort: lost arbitration
[   21.705781] i2c_designware 1f00074000.i2c: i2c_dw_handle_tx_abort: SDA stuck at low

SDA stuck at low signifie que la ligne de données I²C est maintenue en permanence à l’état bas

Déconnection uniquement la nappe OLED du Pironman.

$ dmesg | grep -i i2c
[    0.970193] brcmstb-i2c 107d508200.i2c:  @97500hz registered in interrupt mode
[    0.970296] brcmstb-i2c 107d508280.i2c:  @97500hz registered in interrupt mode
[    3.076795] i2c_dev: i2c /dev entries driver

# Power Button 🚧

As no effect

# Power Consumption ⮺

Scenario	Estimated total system power
Idle, headless (SSH/server only)	~4–6 W
Idle with desktop + HDMI	~5–7 W
Moderate workload (Home Assistant, Docker, light services)	~6–9 W
Heavy CPU load + active NVMe activity	~10–14 W
Stress case (CPU max + SSD writes + peripherals)	~14–18 W

# GPU ⮺

pi 5 has unified memory
yet GPU was designed for graphics and video not for matrix operation.
you can expect 2–10 tokens/sec depending on model size and quantization if running LLM locally

Written on June 21, 2026, Last update on

raspberry-pi arm-hardware project