Closed goku75 closed 7 years ago
Hi. There is setPowerAlarm method. You can use it like this
pzem.setPowerAlarm(ip, 20);
Maximum threshold is 22kW
btw, how are you going to use this alarm?
To communicate i used arduino mega. But now the only thing I care about is that it is when I overtake the 3 kw of absorption.
According to docs, PZEM's screen flashes when power is over threshold. But PZEM004T doesn't have a screen. This is why I wonder). But you can check power in your Arduino sketch by yourself.
There is a version with screen and it blinks indeed. There is also a place and pads for buzzer on the PCB inside, so maybe it can even make some noise )
I have the model with led screen and buzzer. I need the mega arduin program to set power-arm to 3 kw. Already I now read arduino values.
I use this to read the data:
PZEM004T pzem(10,11); // RX,TX IPAddress ip(192,168,1,1);
void setup() { Serial.begin(9600); Serial1.begin(9600); pzem.setAddress(ip); }
void loop() { float v = pzem.voltage(ip); if (v < 0.0) v = 0.0; Serial.print(v);Serial1.print("V; ");
float i = pzem.current(ip); if(i >= 0.0){ Serial1.print(i);Serial1.print("A; "); }
float p = pzem.power(ip); if(p >= 0.0){ Serial1.print(p);Serial1.print("W; "); }
float e = pzem.energy(ip); if(e >= 0.0){ Serial1.print(e);Serial1.print("Wh; "); }
Serial1.println();
// delay(1000); }
How do I enter this? pzem.setPowerAlarm(ip, 20);
for 3kw
add this at the end of setup()
pzem.setPowerAlarm(ip, 3);
Ok it works, the display blinks exceeded the 3 kw but does not sound :( I'll check. thank you
I can not set kw alarm. Can you have an example of how to do this?