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Anders Evenrud andersevenrud

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andersevenrud / 0_README.md
Last active November 10, 2024 01:00
Gigatek DSP840 (DSP800 Compatible) Point-of-sales VFD display Documentation

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
andersevenrud / README.md
Last active November 30, 2023 22:19
Pi-Hole w/D-Link R15
@andersevenrud
andersevenrud / README.md
Last active December 30, 2024 04:11
Arduino Temperature Monitor Hub for Klipper

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
andersevenrud / README.md
Last active January 10, 2025 22:57
Strømpris Sensor i Home Assistant

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
andersevenrud / 0_README.md
Last active November 17, 2024 19:18
NEXA Z-Wave Devices

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

@andersevenrud
andersevenrud / README.md
Last active January 15, 2024 20:08
DIY Z-Wave Power Metering Pulse Sensor

DIY Z-Wave Power Metering Pulse Sensor

I created this because my meter doesn't have an accessible HAN port, and I was not able to find any basic Z-Wave sensor to monitor pulses that did not require the use of some (packaged) proprietary solution or a subscription (and mobile apps). Also, kinda expensive.

This cost me $50 in total (2023), which was considerably cheaper and very beginner friendly.

Accuracy is ~99% (when compared to billing information from my provider over a period of 90 days).

Parts Used

@andersevenrud
andersevenrud / 0_NEXA_BRIDGE_X.md
Last active January 21, 2025 23:51
Nexa Bridge X Documentation

Nexa Bridge X Documentation

The "Nexa Bridge X" is a Smart Home bridge device. The internal name is "Bridge2".

There is now also the Bridge3, which seems like it's mostly the same as Bridge2 except it has a separate adapter for Z-Wave!

It can be attached to a home network and monitor / control devices via an App/Cloud or Local Web UI. Supports assigning devices to rooms and various automations via the provided firmware.

Since this devices comes with a (semi) open API and Websocket it's custom to create custom integrations.

@andersevenrud
andersevenrud / 0-README.md
Last active September 22, 2024 10:31
3D Printing Guide w/Creality Ender 3 (v2)

3D Printing Guide w/Creality Ender 3 (v2)

This is just a dump of discoveries, experience, and general insights.

ℹ️ Does not contain any assembly related information.

ℹ️ A lot of this applies to 3D printers in general.

Divided into the following documentation, in order:

@andersevenrud
andersevenrud / README.md
Last active August 2, 2024 18:07
Raspberry Pi Low Voltage Warning

Raspberry Pi Low Voltage Warning

Resolving the Low Voltage warning (aka the "lightning bolt" ⚡) on a Raspberry Pi.

Please note that this research was done on Pi 3 and lower. I don't own a Pi 4 which uses another USB spesification and different power requirements.

Introduction

This is a document that was produced from a mess of personal notes in order to try to create a resource that might be useful for someone that runs into the same issues as me when it comes to powering a Pi in different scenarios.

@andersevenrud
andersevenrud / README.md
Last active June 24, 2024 17:54
UE5 on Arch

UE5 on Arch Linux

Just some personal in order to make Unreal Engine 5 compile on Arch Linux (25th of June 2022).

Don't even bother trying to make the marketplace run. You gotta do that shit under Wine (Lutris is great for auto-setup) and copy assets over to your Linux drive.

Dependencies:

sudo pacman -S dotnet-sdk xdg-user-dir clang make git