The current-sensor log has a useful ending: In Progress. It does not pretend the next check already happened. Dated 29 June 2025, it names the Soldron 878D load, describes almost six bias-circuit variations and preserves example output near the midpoint instead of the expected waveform. I can return to a particular question because those details survived. That makes this note more interesting to me than a general statement that a session went well or badly. It leaves enough of the unfinished work to think with.
A note saying continue the meter wouldn't help much. Even continue the ADC would leave too much unsaid. The ADC could mean communication, raw readings, the selected range or the calculation after the reading. Those are different questions, and I don't want to reopen everything and rediscover which one I meant. I need enough context to return to the same problem rather than start the whole project in my head again. That’s more useful than trying to make the notes look like a complete report.
I'm thinking of a session note as a small description of the current state. Which sketch is open? What part does it test? What was the last thing I could explain? What is still uncertain? The point isn't to make an elaborate form that takes longer than the work. It’s to preserve the details most likely to disappear when I move to something else. A raw value and a question about its scale would be more useful than a long paragraph saying I made progress with electronics.
An example makes the difference clear. A vague note might say that the readings need fixing. A more useful note would separate the stage: communication responds, a channel returns codes, and the conversion from those codes still needs checking against the selected range. That example isn't a record of a new test. It shows why a note about the actual question helps more than a judgement about whether the whole project is working. If I return with the smaller question intact, I don't have to repeat the parts I already understand.
The status and the output do different jobs. In Progress tells me where the investigation stopped. The printed values tell me what was observed at that point. The list of proposed next actions remains a plan, so I don’t turn it into a record of successful tests. This is a concrete example of why an observation, an explanation and a next step deserve separate sentences. I can change my interpretation later without losing the earlier reading, and I can understand an unfinished result without pretending the note records a complete repair.
I want to keep observations and guesses separate too. If I write that a connection is loose when all I know is that a reading changed, I could return later and treat my first explanation as an established fact. That would make the note less helpful than having no explanation at all. It’s fine to write the guess, but the observation needs to remain visible beside it. The next check can then test the guess instead of quietly building more work on top of it.
The program version matters for the same reason. A result belongs to the code and arrangement that produced it. If I change both before writing down what happened, I might remember a successful scan without remembering which pin choice or sketch went with it. I don't need a complicated system to understand why that would be confusing. It’s the same problem as working through maths and keeping only the final answer: I lose the route that would tell me where I made a mistake or why I trusted the result.
Stopping also makes me notice how unfinished questions can expand when I leave them vague. Understand RMS sounds like one task. In practice it could mean why squaring helps, how the loop calculates an average, how the offset is removed, or whether the readings cover enough of the waveform. Those deserve different next steps. I would rather leave one precise question than a large instruction that feels discouraging the next time I open the project. The smaller question gives me somewhere to put my attention immediately.
There’s a temptation to finish one more thing before stopping, especially when the next thing looks small. Sometimes it probably is small. Sometimes it opens another part of the circuit that I don't have time to think about properly. I don't want every pause to become a rushed change whose reason I can't remember later. Leaving a clear question is allowed. The project doesn't have to produce a milestone every time I sit down with it, and the useful part of a session can be understanding why the next check needs to be different.
A good stopping point can preserve the question rather than solve it. Here the useful thing is already present: the load, the attempted approach, the observed values and an honest description of what remained open.