Problem with voltmeter / probe voltage display across LED
SimulIDE 1.1.0 R1912, Ubuntu 24.04
I created a simple circuit to show the operation of two-way light switching. Circuit file is attached.
Start the simulation with Switch-1 in the down position and Switch-2 in the up position. Turn on the 5V Fixed Voltage. Voltmeter-1 shows 5.000V, Voltmeter-2 shows 0.000V and both probes show 0V. This is as expected.
Change the position of either switch, Voltmeter-1=5V, Probe-1=5V, Probe-2=2.4V, Voltmeter-2=2.405V, Led-1 is on. Again as expected.
Change the same switch back to its original position, the problem becomes clear. Voltmeter-1 still shows 5V but Probe-1 drops to 2.4V, Probe-2 and Voltmeter-2 show 2.4V. The Led is off. The voltage should have returned to zero except on Voltmeter-1.
It the Fixed Voltage is turned off while the probes and voltmeter-2 incorrectly show 2.4V, there is no change except Voltmeter-1 correctly shows 0.000V
The problem can be corrected by the addition of 100GOhm resistance in parallel with Led-1 possibly suggesting that the LEDs require the addition of some leakage current?
Uploaded files:It works well with the latest stable version.
Thanks for trying out the circuit. I downloaded the latest version on Windows and you are absolutely right, the voltmeters behave as expected.
The version that I was using was the latest from the apt repo, version 1.1.0.1912+dfsg-4build2.
I downloaded the Linux SR2 version but it was an appimage which I try to avoid, so I modified the existing install.
In case anyone else gets stuck with this or just wants the current version:
# install the current apt version to set up shortcuts and dependencies:
sudo apt install simulide
# download the latest 1.1.0 version from https://simulide.com/p/downloads/
# assuming that you download SimulIDE_1.1.0-SR2_Lin64.tar.gz to ~/Downloads
cd ~/Downloads
# extract the files
tar -xvzf SimulIDE_1.1.0-SR2_Lin64.tar.gz
# should extract to ~/Downloads/SimulIDE_1.1.0-SR2_Lin64
cd SimulIDE_1.1.0-SR2_Lin64
# extract the files from the appimage file
./simulide --appimage-extract
#move some original files out of the way (rename them but can delete them instead if you prefer)
sudo mv /usr/bin/simulide /usr/bin/simulide2
sudo mkdir /usr/share/simulide2
sudo mv -r /usr/share/simulide/data /usr/share/simulide2/data
# install the updated files and folders
sudo cp squashfs-root/usr/bin/simulide /usr/bin/simulide
sudo cp -r data /usr/share/simulide/
# the examples folder was not installed from the apt repo but it is really usefull!
sudo cp -r examples /usr/share/simulide/
The latest version, 1.1.0-SR2, should now launch from the menu shortcut and the problem with volmeters not updating should be fixed
If you have been running from the apt repo version, take a look at the newly added "examples" folder in the "file explorer" tab!