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add variant PZEM-004T-100A-D-P(V1.0) #5737

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add variant PZEM-004T-100A-D-P(V1.0) #5737

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add photo
rmie Dec 6, 2025
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pzemac.md, add description for PZEM-004T-100A-D-P(V1.0)
rmie Dec 6, 2025
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pzem004t.md, add PZEM-004T-100A-D-P(V1.0) variant
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pzemac.md, fix style issues
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pzemac.md, fix minor spelling and hyphenation issues
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3 changes: 2 additions & 1 deletion content/components/sensor/pzem004t.md
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Expand Up @@ -21,7 +21,8 @@ ESPHome.
> [!WARNING]
> This page refers to version V1 of the PZEM-004T, which has been out of stock for a while.
> The PZEM-004, however, is still working (and selling) with this protocol and does not use modbus.
> For using the newer V3 variant of this sensor please see {{< docref "pzemac" "pzemac" >}}.
> For using the newer V3 variant or boards marked with PZEM-004T-100A-D-P(V1.0) of this sensor
> please see {{< docref "pzemac" "pzemac" >}}.

The communication with this component is done via a [UART](/components/uart).
You must therefore have a `uart:` entry in your configuration with both the TX and RX pins set
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11 changes: 11 additions & 0 deletions content/components/sensor/pzemac.md
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Expand Up @@ -151,6 +151,17 @@ modbus_controller:
update_interval: 30s
```

## Other Devices

### PZEM-004T-100A-D-P(V1.0)

![PZEM-004T-100A-D-P(V1.0)](images/pzem-004t-100a-d-p-v1.0.jpg)

- The silkscreen marking implies V1.0 which might mislead to try using {{< docref "pzem004t/" >}}.
- One notable difference to other boards is the 5-pin connection labeled *5V*, *RX*, *TX*, *CF*, *GND*.
- Seems to work when supplied with 3.3V on the 5V pin, at least over a few centimeters of wire.
No need for level shifter or resistor change, etc. in this case.

## See Also

- [Sensor Filters](/components/sensor#sensor-filters)
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