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olehs / PZEM004T

Arduino communication library for Peacefair PZEM-004T Energy monitor
MIT License
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PZEM004T WITH ARDUINO UNO #52

Open saeednama opened 5 years ago

saeednama commented 5 years ago

pzem004t wiring pzem004t with arguing uno

I have tried the codes here with Arduino UNO, it gives only 0v output doesn't matter if I connect or disconnect the PZEM004T, is this problem from the PZEM or in the code?

olehs commented 5 years ago

You cannot use pins 0 & 1 on UNO simultaneously with Serial output, because Serial uses these pins. Try SoftSerial example with different pins (like default 10,11)

geev8 commented 5 years ago

Hi am receiving this error msg when compiling my codes make on linux

/usr/share/arduino//libraries/PZEM004T/PZEM004T.cpp: In member function ‘bool PZEM004T::recieve(uint8_t, uint8_t*)’: /usr/share/arduino//libraries/PZEM004T/PZEM004T.cpp:148:15: error: ‘yield’ was not declared in this scope yield(); // do background netw tasks while blocked for IO (prevents ESP watchdog trigger) ^ /usr/share/arduino//libraries/PZEM004T/PZEM004T.cpp:162:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<RESPONSE_DATA_SIZE; i++) ^ /usr/share/arduino/Arduino.mk:1186: recipe for target 'build-uno/libs/PZEM004T/PZEM004T.cpp.o' failed make: *** [build-uno/libs/PZEM004T/PZEM004T.cpp.o] Error 1