bug when using dpdt switch

[LE1ED4523]

https://falstad.com/circuit/circuitjs.html?ctz=CQAgjCAMB0l3BWcMBMcUHYMGZIA4UA2ATmIxAUgoqoQFMBaMMAKACcLiURttDPuAFmzcqYeOxAZIgnnykyQw0cjgtBKYiEIYhhWTu6F8UcCABmAQwA2AZzogULAO4ClI7SlnKoLz949CLyV9X1dpAKNdd1E-QxjtaMFQyDiTYzxtdMEqVNcM7RztBH59XLiSwqpCSoK8qqzMsu08TPrCVsaWpuj2zviEFB7Y10HhiiG5fnaijsyMDu6wqUW5lczeaZYUMH4ELh5FCMPZXNhWUcnNt2v6hY35Y9u-fe5r15Plp6PFZ6A
this circuit use a dpdt switch to switching between series and parallel. but not work when toggle the switch

[pfalstad]

Hi,

The code that detects a valid current path through the ohmmeter is not handling the DPDT switch properly. It looks tricky to fix.

For now, try this: https://tinyurl.com/24bymdh8

or this (since tinyurl is acting weird): https://falstad.com/circuit/circuitjs.html?ctz=CQAgjCAMB0l3BWcMBMcUHYMGZIA4UA2ATmIxAUgoqoQFMBaMMAKACcLiURttDPuAFmzcqYeOxAZIgnnykyQw0cjgtBKYiEIYhhWTu6F8UcCABmAQwA2AZzogULAO4ClI7SlnKoLz949CLyV9X1dpAKNdd1E-QxjtaMFQyDiTYzxtdMEqVNcM7RztBH59XLiSwqpCSoK8qqzMsu08TPrCVsaWpuj2zviEFB7Y10HhiiG5fnaijsyMDu6wqUW5lczeaZYUMH4ELh5FCMPZXNhWUcnNt2v6hY35Y9u-fe5r15Plp6PFZ9GD3CyD5ecocYFFY4g0zieAScKKKHfU4sIA

[pfalstad]

You could also use two separate (but linked) SPDT switches like so:

https://falstad.com/circuit/circuitjs.html?ctz=CQAgjCAMB0l3BWcMBMcUHYMGZIA4UA2ATmIxAUgoqoQFMBaMMAKACcLiURttDPuAFmzcqYeOxAZIgnnykyQw0cjgsA7gKUiQhFLOVQNu-du56DhWZGPSDOwhiE6bmx8-NOlVo2-y7-QkDBKlcAvF0Q3QR+K1DjQhjIqkTY-zC48OTdPAiM3KzCAvdfHIiShBRyrzDK6u46uX4MqKKIjCKy0o7ygp6moxQwfgQuHkU7cesoWFZNRt4RscXuzpXJldrl+VHuXGtbRX2FWU2WAGUTS1kLLNCQADMAQwAbAGc6cBAUC90vQR8JSCeSgj1eHy+PyAA

[r3a1d3a1]

Clicking on an SPDT doesn't toggle it for me anymore. Double clicking it opens it config panel.
The "make before break switch" is anything but.... Acts like a tristate switch.
Your site doesn't even open up sometimes recently.... What have you done bro?!?

[fritzw]

https://falstad.com/circuit/circuitjs.html?ctz=CQAgjCAMB0l3BWcMBMcUHYMGZIA4UA2ATmIxAUgoqoQFMBaMMAKACcLiURttDPuAFmzcqYeOxAZIgnnykyQw0cjgtBKYiEIYhhWTu6F8UcCABmAQwA2AZzogULAO4ClI7SlnKoLz949CLyV9X1dpAKNdd1E-QxjtaMFQyDiTYzxtdMEqVNcM7RztBH59XLiSwqpCSoK8qqzMsu08TPrCVsaWpuj2zviEFB7Y10HhiiG5fnaijsyMDu6wqUW5lczeaZYUMH4ELh5FCMPZXNhWUcnNt2v6hY35Y9u-fe5r15Plp6PFZ6A

The circuit from the first post works fine for me on Safari mobile (iOS 17.6.1). The ohmmeter switches back and forth between 500 Ohms and 2k Ohms.

[pfalstad]

Clicking on an SPDT doesn't toggle it for me anymore. Double clicking it opens it config panel. The "make before break switch" is anything but.... Acts like a tristate switch. Your site doesn't even open up sometimes recently.... What have you done bro?!?

Works for me. What platform? What browser? Which circuit? It sounds like you're talking about mobile, since you say double clicking it opens the config panel.

Yeah, the "make before break" switch has three states. There's one state where it's connected to both poles.

When the site doesn't open up, what do you see instead? Is there anything in the console?

[r3a1d3a1]

What platform? What browser? Which circuit?

Chrome on Mac. Not in a circuit; is that the issue?

Yeah, the "make before break" switch has three states. There's one state where it's connected to both poles.

Sorry, my bad then. The UI looked like a tristate switch where the middle option is not connected to either. Could show what it does better, in my defense :)

what do you see instead?

Failed to load circuit error. Can't do anything. Just the toolbar is shown.

[pfalstad]

Not in a circuit? You mean a new circuit?

When the simulator loads, I can just select "Add SPDT Switch" from the right mouse menu, create one, click on it, and it works fine. Can you do that?

So you see "Can't load circuit!" sometimes? Does this happen a lot?

[r3a1d3a1]

Not in a circuit? You mean a new circuit?

I meant not connected to anything else :) Standalone

Does this happen a lot?

I suspect it has to do with your provider Plesk. I guess what I see (just the toolbar) is what's already cached from prior visits.

[pfalstad]

I might have to think about switching providers.

[r3a1d3a1]

Also consider Pi + ngrok (or other tunneling alternatives w/ custom domain support) if your traffic allows.