Everything depends on the accuracy of that, combined with the accuracy of my estimate for the burden presented by the instrument. It’s the ratio of the two resistances that determines how the current shares. In practice, you’d need to trim the value of that to calibrate the instrument, using a known good meter for comparison.

GitHub - olehs/PZEM004T: Arduino communication library for

It is recommended to use GPIO1/GPIO3 or GPIO13/GPIO15 for the most reliable serial communications. When using other GPIOs software serial will be activated and used. GPIO Note: Reply current data is D2D3 = 11 20, 11 represent the integer-bit of the current, 20 represent the decimal of the current, the current decimal is two digits, converts 11 to decimal is 17; converts 20 to decimal is 32, so the current current value is 17.32 A. Also YES! All automations you define in ESPHome are executed on the ESP itself and will continue to work even if the WiFi network is down or the MQTT server is not reachable. ESPHome Automations and Templates Egal welches Modul ich anschließe ich bekomme mit keinem eine Verbindung. Gestern hat das noch vor dem einstellen der Adressen funktioniert. Die Änderung heute war ja nur die Diode und der Widerstand.

Nevertheless, I would suggest using an Arduino with PZEM and view the measurements on Arduino's serial monitor. In this project, we are using Bharat Pi which has both ESP32 microcontroller and a SimCom A7672S 4G/LTE module. Malaus schau mal ob die Dioden richtig verschalten sind, eventuell mal die Dioden drehen, bei mir waren die Dioden falsch markiert. I have negative peaks in Watt’s … not sure why the sensor would give such big negative values (around -2500W a dozen of times a day (not night when all is quite). I think it happens when there is a higher load.

PZEM-004T v3 IoT Energy Meter with Cayenne Dashboard using PZEM-004T v3

The serial communication function (comes with TTL serial interface, through various terminals to communicate with the adapter plate, read, and set the parameters). The obtained data is then stored in the Preferences using appropriate keys (e.g., "voltage", "current", "power"). After adding the ESP8266 board, it must be interfaced with the Cayenne Dashboard. Cayenne Dashboard ESP8266 Setup + Connection: For connection or connection between PZEM-004T V3.0 with Current Transformer (CT), Load and Arduino in full can be seen in the picture below : Wiring PZEM-004T with Load PZEM-004T V3.0 Module Function Testing VORWEG, WEISE ICH DARAUF HIN, DASS ICH KEINERLEI HAFTUNG ÜBERNEHME UND ICH SAGEN WILL, DASS DER ANSCHLUSS DER PZEM-004T MODULE VON EINEM AUSGEBILDETEN ELEKTRIKER ÜBERNOMMEN WERDEN SOLLTE UND NICHT VON EINEM LEIHE!

Fix:

About: Bharat Pi is an IoT prototyping platform for students, innovators, startups and developers. A simplified board with an all in one compute network and storage on a single board to build rapid prototypes, colleg…

Peaceview PZEM-004T Energy Module - Raspberry Pi Forums Peaceview PZEM-004T Energy Module - Raspberry Pi Forums

The microcontroller is also connected to a Wi-Fi module (if not built-in) to enable internet connectivity. Energy Auditing: Power monitoring systems are valuable tools for energy auditors to assess energy usage patterns in residential and commercial buildings. The collected data helps auditors identify areas for energy conservation and recommend improvements. Simply power the board with a power supply (or you can use the AC source you are measuring) and connect the circular sensor to the board. Run the wire through the circular sensor and you`re ready to start measuring the voltage, current, and power. The circuit also comes with a TTL to USB adapter wire for easy connection to a computer or microcontroller. Data Centers: Data centers require precise monitoring of power usage and cooling systems. PZEM sensors can be used to monitor power consumption and temperature to ensure efficient operations and prevent equipment failures due to overheating.I used the logger settings: VERY_VERBOSE. But I can’t understand whether pzem004t works or not. [16:17:54][I][app:100]: ESPHome version 1.14.3 compiled on Nov 26 2019, 16:12:47 Depending on your specific project, you may also need to connect the current coil (CT sensor) to the I (Current) pin of the PZEM-004T. The current coil should be clamped around the wire carrying the AC current you want to measure. include /* Use software serial for the PZEM * Pin 11 Rx (Connects to the Tx pin on the PZEM) * Pin 12 Tx (Connects to the Rx pin on the PZEM) */ Malaus Ah man sieht auf dem Schaltplan die 5V Versorgungsspannung, für die PZEM Module nicht, die Geräte müssen alle mit 5V versorgt werden.

PZEM-004T AC Multi-function Electric Energy Peacefair PZEM-004T AC Multi-function Electric Energy

Above diagram shows the complete wiring illustration, don’t forget to give the detector mains input and also to sense the current, one of the lines for cargo should go through the ct detector. marcuskl ist bei dir die Anzeige genau? Oder hast du manchmal auch Abweichungen, die man nicht zuordnen kann? This Peacefair PZEM-004T Multi-function AC Power Monitor is very popular in electrical consumption measurement projects. It is capable of measuring four interrelated electrical variables as voltage, current, power, and energy.Da einige Interessiert waren an meinem Projekt, 3 Phasen Überwachung mit 3x PZEM-004T V3.0 Modulen, habe ich mir gedacht, Ich mache ein kleines Tutorial. Die 5V Spannungsversorgung der PZEM Module muss über den Wemo kommen. Nur dann erhalte ich eine Kommunikation. Ich vermute mal, dass liegt am Potenzial für Tx und Rx. Make sure the PZEM device is connected to the 230V AC power! The 5V pin only powers the optocouplers, not the actual chip. Always follow safety precautions when working with electrical circuits and power sources. Ensure that you are well aware of the voltage and current levels you are dealing with, and take necessary precautions to avoid electrical hazards.