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White USB cable with black connector labelled 304

Ruth's sister

Ruth's sister USB Cable P1 Port FTDI TTL 5V Serial Smart Meter DSMR Kaifa MA304 Domoticz Raspberry

SKU CH-CD9C-R8TT6

USB cable connects a Kaifa MA304 smart meter P1 port to a Raspberry Pi via FTDI TTL serial for Domoticz integration

  • Connects smart meters via P1 port using FTDI TTL 5V serial
  • Compatible with Dutch DSMR Kaifa MA304 meters for data reading
  • Enables Domoticz integration on Raspberry Pi for home automation
  • New condition ensures reliable performance for energy monitoring

USB cable for P1 port smart meters

This USB cable provides a serial FTDI TTL 5 V link between a Dutch DSMR smart meter and a host such as a Raspberry Pi running Domoticz. It is intended for owners of a Kaifa MA304 meter who want to read consumption data locally without cloud services.

Connects directly to the meter P1 port

The cable plugs into the meter's P1 port and presents a USB interface to the host, so no separate level shifter or power supply is required. Builders who need wireless connectivity or support for non-DSMR meters will need a different solution.

How it compares

Measured against everything we stock in Internal PSU & Riser Cables, at today’s prices. Recalculated every night.

Price $11.99
Cheaper than about 65% of the 7,839 comparable items (median $14.99).

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Specifications

No published specifications for this item yet.

Questions about this item

Will the FTDI chip overheat during continuous logging from the Kaifa MA304 meter?

The cable uses a standard FTDI TTL interface powered from the USB port; no active cooling is required for typical DSMR logging.

How much power does the cable draw from the Raspberry Pi when the P1 port is active all day?

It is powered directly from the Pi's USB 5 V rail and only supplies the meter's P1 port and the FTDI chip.

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