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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-PhotoCou
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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=2
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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) finishe
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🔥 Top post: Lazy Sunday afternoon project, a simple *PC817 OptoCoupler teste · 5 likes + reposts
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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 v…
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…
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…
電車ベクトル (Train Vector):
Software post is now online. 3rd & final post about the current version 2.
https://togo-lab.io/?p=243
Job of the SW: Read 2 analogue inputs, averages signals, calibrates itself at startup, applies thresholds +…
電車ベクトル (Train Vector project): Hardware description:
The main board reads the noisy motor signal of a brick-built model locomotive directly from the H-bridge controller, isolates and processes it & controls the headlights.
There are …
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 si…
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’l…
🎉 The TōGō-Lab Matrix server is now live and open for productive use 🎉.
It is a self-hosted Matrix instance, dedicated to discussions around my hardware projects, design ideas, and experiments in addition to Git & TōGō-Lab blog.
Public lob…
Today I worked on my remote control GUI for the SDG2042X.
This project is now becoming usable for my test bench: Did some bugfixes, added configuration file, path settings (screenshot and pre-saved Settings) and, most important, context-s…
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