3below

Yes to the latter and I still have great fondness for TP, to the point I still do quite a bit of stuff in Free Pascal (or Lazarus for graphical work). The Borland compiler is was quite something even on a 286, on modern hardware goes like SOAS It was all much simpler back the day . Topic drift but following @Smanth's foray making me use the grey matter again, I have started dabbling with various AI sources to create code. A serious game changer. The code it has created for me is very good other than one instance of trying to assign a boolean variable into a float variable, static type checking saves the day. Conversely I fed it some detailed questions on a materials science topic (I did three years postgraduate research in this field). By giving it a false (simple) initial statement it produced very convincing descriptions that are the opposite of the actual reality. The best AI 'flaw' I have read so far (elsewhere) is generated article references that are simply bogus, look real but are fictional.

Like you @FinnDave I have been playing for about 50 years, mostly on 34" basses. At 64 I am luckily not yet suffering arthritis, but age is taking its gradual toll on the hands. Over the last few years increasingly using short scales has made sustained playing easier. As per @Jonesy my SG bass is a good tool, really light. At the moment I am getting vast playing times on my Indian version Chowny SWB-1s (fretted and fretless). Build quality is excellent and they seem real bargains s/h. The Sandberg Lionel looks like a really safe bet.

I have had no problems with the BBOT bridges. The set of Hipshot lookalikes I have fitted were OK. As far as machines go I am very partial to Hipshots, they just seem so nice.

Getting into a serious prog jazz rock band playing originals with really top notch musicians has improved my playing in the last 6 months or so. Am undoubtedly much better than I was for most of my previous 50 years playing. Practice with high demand and expectation helps, as does band members with patience and a willingness to explain. Somewhat poorer memory does not!

Now corrected in my post, just can't get the staff these days....

^ This at 64 in my case.

Not wishing to derail the thread, the pico (and others e.g.ESP32) simulator http:// https://wokwi.com/projects/new/pi-pico that @rwillett pointed out is pretty damn amazing. I have only played with the online version with virtual hardware. Highly impressed so far. It apparently interfaces with VS CODE as well.

Dave kindly sold me the bass I had been looking for 6+ months. Total pleasure to deal with, excellent communications and the usual faultless two blokes meet in a car park and exchange the merchandise. Highly recommended, deal with confidence etc. Many thanks.

The level of support,apps,libraries, compilers etc. that have emerged from OSS never ceases to amaze me even though I have been an OSS advocate from the days of FreeBSD 2.2.5.

Bought a set of TIs from Paul. Excellent communication, arrived ASAP (despite the coronation thingy) and spot on. As always a credit to BC. Many thanks.

I remember them as the low rent alterative to HH if you wanted solid state in the mid 70s. Not great things from memory.

Those of us who have more years will immediately recognise what this is despite someone's attempt to hide it, and the improbable price. https://www.ebay.co.uk/itm/275785620137?hash=item40361a9aa9:g:YaAAAOSwrX5kHDmN&amdata=enc%3AAQAIAAAA0JhRDe6ek66vV4wbavXLtlEIW9rNh5wG47oSqRgNa0uN2vj2LLUJk%2FjEsmnNtZl%2BWaDHbDXzny5isN0aZnnzS37MBWJOcP3jPswg0Ra5WFS5o70hEw%2BpeEyGoU3T1raAPA27ypKNZ1nXFW%2FIqf1K7gg4fj9jcwSqsB%2BqIW2LP0ifeVmda1Pf7PVwVaG4b2QPIpP2a0MMG9klK37A8AIua3KoICxW8XdlxAzkBUVst3Uvlv2mbCsq83CajCJo5NSYeNOOQlDzWaK7BzW6uZQnUWA%3D|tkp%3ABk9SR8btvar_YQ

Great stuff, did you use the Kenneth A. Kuhn debounce method?

I was working on the 20ms 'bounce/settling' time, sample the button and keep sampling until a change of state (or not) is certain. However, from your question I now realise we could sample through B1 -> B4 store results and then every 20ms or so do a state check. Slowly getting brain into gear will get electronics kit out, think and play tomorrow.

✴️ Multithreading ✴️ I have been working in 'old world' single thread linear microcontroller program mode. Carry on, ignore me lol, and yes we have dragons in Wales.

Thinking some more about this, consider four buttons (B1 -> B4) being serially polled. On each each poll a detection event must happen for say 20ms. This means that an event on B4 could be missed while B1 -> B3 are being polled serially and detected (say 60ms total). Using a dedicated hardware debounce with 4 channels continuously detecting and reading the buttons as a port byte every 20ms would reduce the worst case detection latency to 40ms. The advantage of hardware debounce is not in the single case, it is when you have parallel concurrent switch operation. On the plus side I suspect in real operation foot switch timing changes are not this critical with only 4 switches.

As always an incredible amount of progress and skill The debounce integrator code is very elegant to say the least :). @Woodinblack's keyboard comments and mention of rc leads me to ask have you considered hardware debouncing? https://www.digikey.co.uk/en/articles/how-to-implement-hardware-debounce-for-switches-and-relays. If you debounce using hardware you would then be able to poll the input buttons concurrently as a single port byte. This would reduce the latency caused by software debouncing each input after serial reads. Equally well I may have misunderstood the situation and this suggestion is irrelevant.

as per @TheGreek, so many good choices, however given the context of the original post, I suspect the choice will be made for me: what do the local shops have available? and how much time do I have?

Peavey milestone £211 natural, £198 sunburst. Under rated bass, balance well, slim J type neck.

From personal experience, that lasts for six+ years and requires a Court case to resolve. Fortunately no basses were harmed or held hostage in the process. In the case of the 'Supernatural', hmm, someone got a bargain or a problem. Place your bets on which good people

Done some sums No guarantees that they are correct though. The slew times are well below the half period times at 50 Hz and 5KHz for 'normal'operation. It is only in the edge case of 1uA bias current that slew times might start having an effect at f >= 556 Hz. (The simplifications: the slew time needed is for a linear rise from a trough to a peak i.e. T/2 and op amp operating at 18V rail to rail).