Introduction

Starting of with a DIY project that is will be very useful in electronic projects that I will be making on here on igerry.com. I used the PZEM-022 AC meter module on this build to keep it simple. I’ve use Peacefair’s products in other electronic projects and I’ve found them satisfactory for an electronic hobbyist. The PZEM-022 is a versatile and reliable module that can measure various parameters of AC power, including voltage, current, power, and energy consumption.

Materials Needed

• PZEM-022 module
• Enclosure box
• Power cable with socket and plug
• Integrated power socket/switch/fuse
• Universal Power socket
• Fuse holder and fuse
• On/Off switch
• Binding posts
• Connecting wires
• Soldering iron and solder
• Screwdriver
• Drill
• Nibbler

Steps to Build the AC Meter

1. Prepare the Enclosure Box:

• Drill holes in the enclosure box for the PZEM-022, power cable input, universal power socket output, fuse holder, on/off switch, and binding posts.
• Ensure that the holes are appropriately sized and positioned for easy access and visibility.

1. Install the Components:

• Mount the PZEM-022 in the designated hole on the enclosure box.
• Secure the power cable through the hole and connect it to the PZEM-022 module.
• Install the fuse holder and fuse, ensuring it is connected in series with the power cable for protection.
• Attach the on/off switch to the enclosure and connect it to the power cable.
• Mount the binding posts on the enclosure and connect them to the PZEM-022 module for easy connection to the load.

1. Wiring and Connections:

• Solder the connecting wires to the PZEM-022 module, ensuring proper connections for voltage, current, and power measurements.
• Double-check all connections to ensure they are secure and correct.

1. Testing the AC Meter:

• Plug in the power cable and turn on the switch.
• Observe the display of the PZEM-022 to ensure it is functioning correctly and displaying the correct measurements.
• Connect a load to the binding posts and verify that the PZEM-022 module accurately measures the voltage, current, power, and energy consumption.

1. Final Assembly:

• Once all components are tested and functioning correctly, secure the enclosure box with screws.
• Ensure that all wires are neatly arranged and insulated to prevent any short circuits.

What’s ahead

Building a DIY AC meter using the PZEM-022 module is a basic tool that I would be using in my projects. It will help me gather information about electrical information/consumption of my projects. The next build I will be doing is a DC meter.