IoT Sensors Knowledge Base for the Internet of Things - Public Monitoring Project

My Sensors | How to transfer readings | Examples of IoT solutions | How to add a sensor to the map | How to add a webcam to the map
+ This section contains data on the most popular sensors in the Project based on feedback from Project members.
We ask You to take part in updating the knowledge base by answering questions about your sensors by the link:
forms.gle/5BLcq8yeZ7apPCKt8

+ We express our gratitude and provide bonuses for help in filling the knowledge base to the Project members:

werox, kini, andrey_mozyr, androidpasha, den48rus, kononenkoev, Naevus, anikin, rw4cju.ru, SVL, vk319771979, Vladik770, yuns.

#t air12 | #RH humidity13 | #atm.pressure5 | #P power1 | #A energy1 | #logical1 | #luminosity1 | #radiation2 | #U voltage2 | #I current2 | #concentration1 | #dustiness2

PZEM-004Tv3Model: PZEM-004Tv3
Interface: RS485
Power supply: 5V
Data type: P power
Usage: indoor
Measuring range: 0...22KW
Resolution: 0.1W
Price: 5 USD
Sensor life, years: 2+
Datasheet: PZEM-004Tv3.pdf
Remarks: Stable work, unlike v1. RS485 protocol, but does not require a special converter for connection. To work with ESP, it is necessary to halve the value of the resistors on the optocoupler. Additionally, it can measure frequency and power factor.