Hello friends, I hope you all are doing great. In today's tutorial, we will have a look at How to use Voltmeter & Ammeter in Proteus ISIS. It's our 4th tutorial in Proteus series. While designing an electronics project, voltage & current measurements are essential debugging features, as they help in understanding circuit behavior. Proteus has builtin instruments for voltage & current measurement. We have have their probes and today we will discuss them in detail. First have a look at Voltmeter in Proteus ISIS:

#### How to use Voltmeter in Proteus ISIS

• DC Voltmeter is used to measure the voltage difference across any DC component.
• In order to use DC Voltmeter, we need to click on Virtual Instruments Mode, as shown in the figure.
• In Instruments list, we have DC voltmeter, so click it and place it in your Proteus workspace.
• I am going to use the same circuit, which we have designed in first lecture, shown in below figure:
• As you can see in the figure, I have placed two voltmeters, one at the input and second at the last LED.
• Because of 100kohm resistance, there's a slight drop in the voltage at last two LEDs.
• Moreover, Voltmeters are placed in parallel to these component.
• We can also use Voltage Probe to measure voltage at any point in the electronic circuit.
• So, click on Voltage Probe in the left toolbar and connect it to any point in your circuit and its voltage will be displayed.
• I have placed two Voltage probes on my circuit, as shown in below figure.
• Voltage Probe provides value up to five decimal points, while DC Voltmeter provides value up to 2 decimal points.
• Voltage probes are quite helpful as they are small in size and easy to place in the circuit.
So, that was all about Voltmeter in Proteus. Now, let's have a look at How to use Ammeter in Proteus ISIS:

#### How to use Ammeter in Proteus ISIS

• DC Ammeter is used to measure the current passing through any DC component.
• We need to click on Virtual Instruments Mode and then click on DC Ammeter.
• Place this Ammeter in series, as shown in below figure:
• We aren't getting any value on our Ammeter as these LEDs are not drawing much current.
• But, you can see we have placed the Ammeter in series, we will use it a lot in coming projects.
So, that was all about How to use Voltmeter & Ammeter in Proteus. I hope you have enjoyed today's tutorial. Till next tutorial, take care & have fun !!! :)