The Wiert Corner – irregular stream of stuff

Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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Archive for the ‘Hardware Development’ Category

Raspberry Pi, Tumbleweed, btrfs

Posted by jpluimers on 2020/06/15

I want to use btrfs as filesystem on a Raspberry Pi with opensuse Tumbleweed.

It is hard to find out how, so here are a few links that should help me from “opensuse” “tumbleweed” “btrfs” “raspberry” pi:

–jeroen


Posted in *nix, *nix-tools, Development, Hardware Development, Linux, openSuSE, Power User, Raspberry Pi, SuSE Linux, Tumbleweed | Leave a Comment »

TOP 10 CD/DVD/Floppy Drives based Projects – YouTube

Posted by jpluimers on 2020/05/28

Cool stuff: TOP 10 CD/DVD/Floppy Drives based Projects – YouTube.

Via:

–jeroen

Read the rest of this entry »

Posted in Development, Hardware Development, LifeHacker, Power User | Leave a Comment »

GitHub – dschmenk/apple2pi: Apple II client/server for Raspberry Pi

Posted by jpluimers on 2020/05/28

[WayBack] GitHub – dschmenk/apple2pi: Apple II client/server for Raspberry Pi: hybrid computer of a Raspberry Pi inside an Apple II (either ][, or ][+, or //e) so the Apple II can be a front-end to the Raspberry Pi which then can run an Apple IIGS emulator, talk to the Apple II storage hardware and much more.

It can run [WayBack] RASPPLE II: A2CLOUD, A2SERVER, Apple II Pi for Raspberry Pi

Lot’s of videos below, all by David Schmenk https://www.youtube.com/user/dschmenk/videos

Via:

–jeroen

 

 

Posted in *nix, *nix-tools, //e, 6502, Apple, Apple ][, Development, Hardware Development, Hardware Interfacing, History, Power User, Raspberry Pi, USB | Leave a Comment »

Raspberry Pi 1B OpenSuSE Tumbleweed zypper upgrade problem · GitHub

Posted by jpluimers on 2020/05/25

It looks like OpenSuSE has stopped supporting Raspberry Pi 1, so the best likely is to recycle it into a Pi-Hole as basically it’s been dead since mid 2017: [WayBack] Raspberry Pi 1B OpenSuSE Tumbleweed zypper upgrade problem · GitHub.

Build status for armv6l support: [WayBack] Project openSUSE:Factory:ARM Status Monitor – openSUSE Build Service

–jeroen

Read the rest of this entry »

Posted in *nix, *nix-tools, Debian, Development, Hardware Development, History, Linux, openSuSE, Power User, Raspberry Pi, Raspbian, SuSE Linux, Tumbleweed | Leave a Comment »

DC12V COB LED Light Strip Panel 5W 10W 20W 50W 200W 300W LED Bulb White Blue Red Flip Chip COB Lamp DIY House Car Lighting 12V-in LED Bulbs & Tubes from Lights & Lighting on Aliexpress.com | Alibaba Group

Posted by jpluimers on 2020/05/19

Interesting for some projects: [WayBack] DC12V COB LED Light Strip Panel 5W 10W 20W 50W 200W 300W LED Bulb White Blue Red Flip Chip COB Lamp DIY House Car Lighting 12V-in LED Bulbs & Tubes from Lights & Lighting on Aliexpress.com | Alibaba Group

Note they are not current limited!

This means I need to read more on current limiting; these might be a start:

Via The biggest LED COB panel yet! Voltage/current tests. – YouTube

–jeroen

Read the rest of this entry »

Posted in Development, DIY, Hardware Development, Power User | Leave a Comment »

LED bulbs in IKEA track lighting systems lie SANSA or LINA – SM2YER Goran’s Homepage

Posted by jpluimers on 2020/05/01

It is easy to replace the halogen bulbs in IKEA track lighting systems like IKEA SANSA or IKEA LINA by LED bulbs (Sansa uses 5.3mm spaced MR16 fitting compatible with both GX5.3 and GU5.3 bulbs, I think LINA uses the same): [WayBack] SM2YER Goran’s Homepage.

There are many other fittings; [WayBack] LED fitting welke moet ik kiezen? | Lampfittingen overzicht has a good list, mentioning these:

  • E14
  • E27
  • GU10
  • MR11 (which has slightly thicker pins than G4 and GU4)
  • G4 and GU4
    (with varying pin thickness)
  • G5.3, GX5.3, GU5.3
    (with varying pin thickness)
  • G6.35, GX6.535, GY6.35, GZ6.35
    (with varying pin thickness)
  • MR16
  • G9
  • GU10
  • AR111

The problem is the power supplies. They do not like the low wattage, or even burn with low wattage. Two solutions:

  • Use at least one 10W bulb, or
  • Use a 12V power supply from a laptop or other device that delivers far less power.

Fitting references:

--jeroen

Posted in Development, Hardware Development, IKEA hacks, LifeHacker, Power User | Leave a Comment »

This means your SD card is dead for writing: “fsck.ext4: unable to set superblock flags on ROOT”

Posted by jpluimers on 2020/04/24

A while ago I had a "fsck.ext4: unable to set superblock flags on ROOT" on an SD card in a Raspberry Pi: it basically means the SD card is dead.

Back then Google found only one entry: [WayBack] Bad Superblock – Raspberry Pi Forums

–jeroen

Posted in *nix, *nix-tools, Development, Hardware Development, Power User, Raspberry Pi | Leave a Comment »

Zelfbouw verlichting aansturen via Hue – Duurzame Energie & Domotica – GoT

Posted by jpluimers on 2020/04/16

On my research list: [WayBack] Zelfbouw verlichting aansturen via Hue – Duurzame Energie & Domotica – GoT.

via: [WayBack] Tweakers: Ikea komt met leddriver om geïntegreerde verlichting ‘slim’ te maken

–jeroen

 

PS: Lampen van de Action werken ook prima via Tuya. Met Google nest.

Posted in Development, Hardware Development | Leave a Comment »

LBS008AE and LBS005AE-R2, 10-100 Switches USB powered – Black Box

Posted by jpluimers on 2020/04/16

These are cool devices: the [WayBack] LBS008AE and LBS005AE-R2, 10-100 Switches USB powered – Black Box.

Both are the size of a Raspberry Pi and USB powered.

The first is 8-port, the second 5-port. Ideal for a stack of Pis.

There are 5V powered 8-port Gigabyte switches from other vendors as well at around `1A (effectively using ~5W), but they are bigger.

Via: [WayBack] How to Build a Kubernetes Cluster with ARM Raspberry Pi then run .NET Core on OpenFaas – Scott Hanselman

–jeroen

Posted in Development, Hardware Development, Power User, Raspberry Pi | Leave a Comment »

18650 Battery shield V3(RaspberryPi&Arduino) from lspoplove on Tindie

Posted by jpluimers on 2020/03/04

As you know Tesla has thousands of 18650 batteries. The 18650 battery is a strong existence. So we made this 18650 battery shield for maker.

Features:

  • Battery protection(Over charge or Over discharge)
  • Micro USB port Input
  • Type-A USB Output
  • 0.5A current charging
  • 1 switch control USB output
  • 5~8V Input Voltage
  • 3V & 1A Output
  • 5V & 2A Output
  • LED indicate(Green means full,Red means charging)
  • 3V output port x3
  • 5V output port x3

Charging can only be done at 0.5A, so using it as a sort of UPS seems not possible, but an interesting device nonetheless.

The other products referenced from the same page are interesting too and will undoubtedly bring me some new ideas for some projects.

Source: [WayBack18650 Battery shield V3(RaspberryPi&Arduino) from lspoplove on Tindie

Via:

–jeroen

 

Posted in 18650, Arduino, Batteries, Development, ESP8266, Hardware Development, Li-Ion, Odroid, Power User, Raspberry Pi | Leave a Comment »