New lab gear for upcoming TōGō-Lab projects: Picked up Nordic’s Power Profiler Kit II to get a good look at low-power behavior instead of guessing with a handheld power meter.

Setup in a virtual Win10 was easy. But getting it running on my Ubuntu workbench machine was a bit more fiddly than expected.

Nordic's AppImage works, but not quite as plug-and-play as I hoped.

Blog:
https://togo-lab.io/?p=258

Git:
https://gitea.togo-lab.io/tgohle/0006-Setting_up_Nordic_PowerProfilerKitII_Linux

#ToGoLab #Nordic #PPKit2 #nanoAmpere #Linux #Ubuntu #Electronics #DIY_electronics #LabNotes #DIY

The last few weeks went into project Nr. 0005: 電力番長 (Denryoku Bancho), my Linux-native fork path for the MightyWatt electronic load.

Main reason: Finally wanted this thing to live where I want it: In my Linux lab environment instead of in a virtual Windows side corner so I can better integrate. It also fits well with restarting my electronics hobby & reshaping my lab.

So the cli part of the project is now at beta 0.1. It basically works, but it still needs heavy testing and improve over the next few weeks. Maybe a GUI will follow later.

Blog: https://togo-lab.io/?p=250

Git: https://gitea.togo-lab.io/tgohle/0005-DenryokuBancho

#MightyWatt #DenryokuBancho #電力番長 #ToGoLab #Linux #Electronics #ElectronicLoad #CLI #Python #TestAutomation #OpenSource #HardwareHacking #DIY #DIY_electronics

Finished my 電車ベクトル (Train Vector) project:

A Arduino-based board will detect the driving direction of brick-built model locomotives directly from the noisy H-bridge motor controller & switches the headlights automatically.

Sounds simple, but due signal noise, switching artefacts & inductive (reverse) spikes direction sensing is quite hard.

Schematics, PCB, and firmware for beta (version2) finished & working.

Three PCBs were built & tested & the first 2 boards are now handed over for real-life testing in a model railway club.

Blog:
https://togo-lab.io/?p=223

Gitea (Schematic, PCB):
https://gitea.togo-lab.io/tgohle/0004-DenshaBekutoru

#電車ベクトル #TrainVector #ToGoLab #BrickTrains #ModelRailway #Arduino #Electronics #projects

Today I pushed my 1 GB VPS over the limit by running #Nextcloud, #Matrix, and #Gitea for togo-lab.io and adding #ClamAV AV scanning as an experiment. It crossed the line due too much load during scanning, and my system crashed.

Maybe you’ll find my post-mortem useful.

https://togo-lab.io/?p=190

#togolab #tgonet #postmortem #selfhosted

Lazy Sunday afternoon project, a simple *PC817 OptoCoupler tester.

Two very simple ~5V circuits:

1) Quick check — push the button, LED on = works.

2) Test Circuit as mentioned in the datasheet for frequency / pulse behavior test.

Nothing fancy, but handy for sorting out good vs questionable parts.

Blog:
https://togo-lab.io/?p=153

Gitea:
https://gitea.togo-lab.io/tgohle/0002-PC817-Series-PhotoCoupler-Tester

#electronics #DIY #optocoupler #pc817 #ToGoLab #SundayDIY

Improving my test bench for future projects, I wrote a small PyQt5 GUI to control my Siglent SDG2042X from a remote Ubuntu desktop.

It handles basic waveform setup, sweeps, bursts, presets (so you can adjust at the generator and than load down for later), ARB upload/download (not fully tested yet), and SCPI commands, also screenshots.

I’m more of a hardware guy than a coder (for sure there will be some bugs), so feedback are welcome. Fork if you like.

--
Blog:
https://togo-lab.io/?p=130

Gitea with script:
https://gitea.togo-lab.io/tgohle/0003-SDG2042X-PyQt-GUI-for-Linux

#ToGoLab #Siglent #SDG2042X #PyQt5 #Testbench #OpenSource #python #weekendProject #diy_electronics #DIY