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Rogno13/07/2019
----- Italian ----
Ho ricevuto il prodotto nella versione 3.0 (quella con gli integrati di isolamento bianchi), funziona bene sia con Arduino che con Tasmota, non ho provato il software in dotazione.
Per Arduino bisogna utilizzare la libreria "https://github.com/mandulaj/PZEM-004T-v30" specifica per la versione 3.0 dove cambia il protocollo di comunicazione.
Ho provato il modulo con il mio Sonoff basic ed il Firmware Tasmota release v.6.6.0, funziona tutto ma bisogna indicare seguenti i parametri (come segnalato nel portale "https://github.com/arendst/Sonoff-Tasmota/issues/5765"):
GPIO1 = [62 PZEM0XX Tx]
GPIO3 = [98 PZEM016 Rx].
Collegando il pin RX del modulo SONOFF al pin TX del PZEM-004T e il pin TX del SONOFF al pin RX del PZEM-004T.
Non è necessaria la resistenza di pullup da 10K, la parte elettrica dell'interfaccia seriale è alimentata dal dispositivo a cui si collega, funziona sia a 3,3v che a 5v.
----- English -----
I received the product in version 3.0 (the one with the white isolation integrated), it works well with both Arduino and Tasmota, I have not tried the supplied software.
For Arduino you must use the library "https://github.com/mandulaj/PZEM-004T-v30" specific for version 3.0 where the communication protocol changes.
I tried the module with my Sonoff basic and the Tasmota Firmware release v.6.6.0, everything works but you have to indicate the following parameters (as reported in the portal "https://github.com/arendst/Sonoff-Tasmota/issues/ 5765 "):
GPIO1 = [62 PZEM0XX Tx]
GPIO3 = [98 PZEM016 Rx].
Connecting the RX pin of the SONOFF module to the TX pin of the PZEM-004T and the TX pin of the SONOFF to the RX pin of the PZEM-004T.
The 10K pullup resistor is not required, the electrical part of the serial interface is powered by the device to which it connects, it works both at 3.3v and at 5v.
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