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EspoTek / Labrador

EspoTek Labrador is a USB device that transforms your PC or smartphone into a fully-featured electronics lab. This repo holds all of the source code!
http://espotek.com
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Issue with Multimeter #146

Closed hchaudh2 closed 3 years ago

hchaudh2 commented 3 years ago

Also, another issue is coming up. When I click multimeter, everything goes away on the black screen and it sort of freezes up. I was trying to read the voltage and current after I made a circuit. What is the issue here?

EspoTek commented 3 years ago

The Multimeter mode is a software wrapper around a special mode of the oscilloscope. Scroll out on the display until you can see the trace, and the display should unfreeze.

hchaudh2 commented 3 years ago

I'm sorry I should have explained this better, but it doesn't necessarily freeze. The green and yellow on the black display disappears and then I can't measure the voltage or current anymore.

EspoTek commented 3 years ago

Yeah, I understand what you mean. You need to zoom out the display.

hchaudh2 commented 3 years ago

Sorry, how do I do that? I thought it was already zoomed out.

EspoTek commented 3 years ago

Put the mouse cursor over the display and scroll out. You should see a trace somewhere!

hchaudh2 commented 3 years ago

I think it worked for voltage, but when I try to get current. It says F for all values and the green/yellow disappears on the black screen.

EspoTek commented 3 years ago

You're using 1.1, right? Can I ask what version of MacOS you're running?

hchaudh2 commented 3 years ago

What do you mean by 1.1? My MacOS is version 11.2.1

EspoTek commented 3 years ago

I'm talking about release 1.1 of the software. It's about 3 years old now and has some pretty major bugs still in it. Honestly, I can't offer support for such an old build.

If you're able to update your MacOS version to 10.12 or later, I strongly recommend doing that and upgrading to the continuous release of Labrador. Otherwise, I'd recommend either installing Windows through Bootcamp or making a bootable USB of Ubuntu.

hchaudh2 commented 3 years ago

I have updated my MacOS version to 10.12 or later, but when I update to the continuous release of Labrador, it won't open and ends up crashing.

EspoTek commented 3 years ago

You can't run unsigned apps in 10.12 or later through a double-click. Instead you need to right-click, select open, then confirm that you want to open it.

hchaudh2 commented 3 years ago

It still won't open when I do that.

EspoTek commented 3 years ago

OK. Can you please "Show Package Contents" on it, navigate to Contents->MacOS and then drag the raw executable in there onto a terminal window? What does it say when you do that?

hchaudh2 commented 3 years ago

% /Volumes/bin\:Labrador/Labrador.app/Contents/MacOS/Labrador QObject::connect: No such slot bufferControl::signalGenIn(bool) QObject::connect: (sender name: 'signalGenGroup_CH2') QObject::connect: (receiver name: 'bufferDisplay') QObject::connect: No such slot isoDriver::setWindow(int) QObject::connect: (sender name: 'timeBaseSlider') QObject::connect: (receiver name: 'controller_iso') QObject::connect: No such slot timedTickBox::resetTimer(bool) QObject::connect: (sender name: 'lockPsuCheckBox') QObject::connect: (receiver name: 'lockPsuCheckBox') QMetaObject::connectSlotsByName: No matching signal for on_actionRecord_triggered(bool) QMetaObject::connectSlotsByName: No matching signal for on_actionTake_Snapshot_triggered() Attempting to open "/Volumes/bin:Labrador/Labrador.app/Contents/MacOS/waveforms/_list.wfl" nameBuffer = Sin

nameBuffer = Square

nameBuffer = Triangle

nameBuffer = Sawtooth

nameBuffer = DC newName = "Sin" opening "/Volumes/bin:Labrador/Labrador.app/Contents/MacOS/waveforms/Sin.tlw" Length = 128 Divisibility = 4 List loaded!! Attempting to open "/Volumes/bin:Labrador/Labrador.app/Contents/MacOS/waveforms/_list.wfl" nameBuffer = Sin

nameBuffer = Square

nameBuffer = Triangle

nameBuffer = Sawtooth

nameBuffer = DC newName = "Sin" opening "/Volumes/bin:Labrador/Labrador.app/Contents/MacOS/waveforms/Sin.tlw" Length = 128 Divisibility = 4 List loaded!! Making USB Driver invisible!! pipeID 0 = 129 Generic Usb Driver setup complete unixUsbDriver created! driver = unixUsbDriver(0x7fc27669d000) axes = QCustomPlot(0x7fc276110c20, name="scopeAxes")

EspoTek commented 3 years ago

Are you running 10.16 (Big Sur)?

hchaudh2 commented 3 years ago

It is Big Sur version 11.2.1

EspoTek commented 3 years ago

Sorry, I'm an idiot! I read it as 10.11 (El Cap). Just enter the line export QT_MAC_WANTS_LAYER=1 before launching from terminal and it should work perfectly.

hchaudh2 commented 3 years ago

Oh my god! It works! Thank you so much. I honestly really appreciate it a lot.

EspoTek commented 3 years ago

No worries. Hope you enjoy!

hchaudh2 commented 3 years ago

Sorry to bother you again, but when I click current on Multimeter, it says F for all values. Can you help me with this?

EspoTek commented 3 years ago

What is your series resistance set to?

hchaudh2 commented 3 years ago

0 ohms

hchaudh2 commented 3 years ago

It works when I change it to for example 47 ohms but I'm not getting the proper readings for voltage, current or resistance.

EspoTek commented 3 years ago

Check the docs. They specify how to lay out a circuit for the multimeter, and what resistance ranges are sensible. https://github.com/EspoTek/Labrador/wiki

Alternatively, get yourself an El Cheapo multimeter. I still use my $10 Jaycar meter I got as a kid - they're simpler to use and very handy.