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PZEM-004T V3

Michael Ingraham 2019-06-30 00:36:49 -04:00
parent 0dac71e202
commit 4cb36a048a
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PZEM004T-Energy-Monitor.md

@ -38,9 +38,18 @@ As most parts are connected to high voltage AC it is recommended to fit the hard
## Software configuration
Configure the GPIO's for hardware serial connection as shown below.
**IMPORTANT: If using the connections as following, the communication works in all cores due to Tasmota using hardware serial. If the user wants to use another GPIOs for communication, Tasmota will emulate a serial interface using software serial. This feature does not work using core 2.3.0 due to insufficient RAM. To use the software serial feature, please compile using core 2.4.2 or greater.**
**IMPORTANT: If using the connections as following, the communication works in all cores due to TASMOTA using hardware serial. If the user wants to use other GPIOs for communication, TASMOTA will emulate a serial interface using software serial. This feature does not work using core 2.3.0 due to insufficient RAM. To use the software serial feature, you must use a core version of 2.4.2 or greater.**
[Device Template](Templates)<BR>
**PZEM-004T version prior to V3:**
`{"NAME":"HW-655 PZEM","GPIO":[0,62,0,63,0,0,0,0,0,0,0,0,0],"FLAG":0,"BASE":1}`
**PZEM-004T version V3:**
`{"NAME":"HW-655 PZEM","GPIO":[0,62,0,98,0,0,0,0,0,0,0,0,0],"FLAG":0,"BASE":1}`
<img src="https://user-images.githubusercontent.com/10942270/50730409-5653d780-114d-11e9-9ce0-05074c4d08b7.png" height="400" />
## Calibration
[Per Theo](https://github.com/arendst/Sonoff-Tasmota/issues/3208#issuecomment-405048466) - As the PZEM is a dedicated energy monitor, device calibration in TASMOTA is currently not supported.