andersevenrud

Resizable BAR on SuperMicro H11SSL-I with Intel Arc B580

This might work other mainboards and graphic adapters as well, but this article assumes H11SSL and B580 running on a Linux operating system.

Tip

UEFI hacks is possible [^3] using ReBarUEFI, but this is more invasive and requires firmware modifications. In worst case it can brick your system and require recovery with a chip programmer. If you're running Windows then this is probably the only solution.

The Issue

The SuperMicro H11SSL-I board does not have an option in the BIOS to enable "Resizable BAR" ("Resizable Base Address Register", or "ReBAR"), aka SAM ("Smart Access Memory") for AMD Platforms. It was not introduced until the H12 series boards.

andersevenrud

RadiationD v1.1 CAJOE with ESPHome (Home Assistant)

A brief guide on how to set up a cheap and readily available radiation detector (geiger counter) in Home Assistant using ESPHome.

Materials

• RadiationD
• ESP32 Microcontroller (I used a WROOM)
• Dupont Connectors
• 10K Ohm Resistor (optional, but recommended for protection)

andersevenrud

D-Link DCS-5030L IP-Camera in Home Assistant

This is a brief guide on how to set up this Camera in Home Assistant, including controls.

Might work with other models as well.

Requirements

andersevenrud

KlipperScreen Splash Screen Video

A simple systemd service to show a splash video before KlipperScreen loads.

Demo: https://www.youtube.com/watch?v=En1gtl8IiC8

Note:

This interrupts the launch of KlipperScreen. However the other Klipper services still start up in the background, so it's not really noticable in terms of total startup time.

andersevenrud

I wanted to connect a simple piezo buzzer to my 3D-printer running Klipper to make some beeps when a print starts, stops, etc.

Parts required

• A passive buzzer (I bought these cheap ones from Ali)
  • Note that active buzzers have an internal oscillator and cannot emit tones of different frequencies.
• Some wires and a connector

Assembly

andersevenrud

Gigatek DSP840

Documentation of a point-of-sales display unit from GIGA-TMS INC.

This documents my personal findings, rom dumps, references to official resources available online, and working examples from investigations and experimenting. I got this device from a decommissioned grocery store cash register.

Demonstration video of the device running over Serial (RS232): https://www.youtube.com/shorts/m6WFimJwR7Y

Specifications

andersevenrud

Pi-Hole w/D-Link R15

A brief guide on how to set up Pi-Hole and make all clients on the network use it as DNS without any manual configuration on clients.

R15 is also known as EAGLE PRO AI AX1500 Smart Router

https://eu.dlink.com/no/nb/products/r15-eagle-pro-ai-ax1500-smart-router

Setting up Pi-Hole

andersevenrud

Arduino Temperature Monitor Hub for Klipper

I wanted to monitor temperatures in certain areas on my printer[^3] with Klipper and came up with the following solution.

BoM

Assumes you have access to soldering iron etc.

• Arduino or similar
• Jumper wires

andersevenrud

Strømpris i Home Assistant

Det er mulig å legge til strømpris som en sensor i Home Assistant takket være https://www.hvakosterstrommen.no/ .

Dette vil ikke reflektere ditt abonnement, men gjør det enkelt å få et estimat i forbruksdata / energi panelet.

Konfigurasjon

Tilgjenglige områder:

andersevenrud

NEXA Z-Wave Devices

Information about Nexa AB distributed Z-Wave devices.

Please note that this document is a compilation personal notes and opinions about my experience (<1yr) with these devices (and not a complete list). Your experience may vary... and I would love to hear about it in the comments.

Table of Contents

• ZPR-111 - Plug-in Switch w/power metering
• Bugs