I'm connecting a PZEM-004T to my off grid cabin power system. This was exactly what I needed!
@troylhester
Жыл бұрын
Thanks for the video. I waas glad to see how to handle the raw data from the serial interface with Python. FYI an incandescent bulb may be a better load. Your soldering iron has a thermostatic switch that turns the power on and off depending on the temperature of the iron. So it will vary quite a bit. That's why the wattage changes from around 60w initially to much less later; probably the thermostat on the iron reached temperature and turned the current off. A dumb 60W incandescent bulb would be a bit more stable to do current and power testing.
@Raafiu4
3 ай бұрын
can I connect it to blynk for a GUI? And saving the data in a spreadsheet? or just view the data that is provided?
@jeffschroeder4805
3 жыл бұрын
Perhaps the coil isn't sensitive enough for the low currents you were measuring-might try comparing results using something that would draw significantly more current?
@ravissonsf
3 жыл бұрын
Congrats! Well done!
@MrBlackpanther87
2 жыл бұрын
Any ideas on how to attach multiple PZEMs to the same serial? i Understand these are addressable but looking for some guidance. I have seen lots of ideas and code for esp boards but want to do it with a PI so that i can store data locally on the pi. I also plan to use the pi to read other meters in the distribution box, so will be convenient. overall, i plan to read 6 Pzems, not sure if that brings any challenges and ideally from the same usb to serial. I am using 3 pzems with the esp board but the data is not reliable due to intermittent wifi issues etc.
@arielgamboavazquez4250
Жыл бұрын
I believe you can, by using a modbus connection.
@MrBlackpanther87
Жыл бұрын
@@arielgamboavazquez4250 thankyou, i figured it out eventually. Instead of coding it up i just went with nodered modbus integration
@arthurkepler483
3 жыл бұрын
What kind of soldering iron pulls 14 watts? Might be much more interesting if it were turned on! Does it deactivate when holstered?
@bra1nsen
2 жыл бұрын
Could you make a Tutorial adding a solar panel to calc W/m2
@jayeshalagh1101
3 жыл бұрын
GREAT CONTENT!!!!!!!!!! LOVE YOUR WORK AND IT'S SO INSPIRING!!! PLEASE MAKE A VIDEO EXPLAINING NRF24 WITH RASPBERRY PI!!!!!! PLEASE!!!! I'M STUCK
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