serin labs
Check your model Flash
Assembled CN105-to-Grove cable, coiled, in orange braided sleeving with a 5-pin JST connector on one end and a 4-pin Grove HY2.0 connector on the other
Assembled CN105-to-Grove cable, coiled, with its four coloured conductors unsleeved, a 5-pin JST connector on one end and a 4-pin Grove HY2.0 connector on the other
The orange CN105-to-Grove cable routed into the electrical box of a Mitsubishi wall unit, running under a retaining clip and beneath the control-board cover
The orange CN105-to-Grove cable plugged into the CN105 port on a Mitsubishi MVZ-A18AA7 ducted air handler control board
The empty red CN105 serial port on a Mitsubishi indoor unit's control board, with the CN105 label and pins 1 and 5 marked in the silkscreen

CN105-to-Grove Cable

$13
CN105 · Grove · 20 / 50 cm

5.0 (9)

Connects a Mitsubishi indoor unit's CN105 port to a Grove-equipped ESP32 board. Assembled and tested, with no crimping or soldering. Controller board sold separately.

20 cm, 1 cable in braided sleeving $13
Buy

Free US shipping $35+Ships in 1–2 days30-day returns

Secure checkout by Shopify, shipped from New Jersey.

Shipping
Free US shipping on orders $35 and up, from New Jersey. Orders outside the US ship at the carrier rate shown at checkout; any duties or import fees on delivery are the buyer's.
Returns
30-day returns by mail. How returns work.
Warranty
1-year limited hardware warranty against manufacturing defects. Warranty terms.

Which length? · Wiring reference

Will it fit your unit?

Type the model from the indoor unit's sticker.

Requires a free CN105 port. Not for Ecodan or units with a wired wall controller on the same port.

Overview

Cable length

Choose your length

20 cm: wall units and cassettes

Keep the cable and board inside the indoor unit's plastic housing.

50 cm: ducted air handlers

Mount the board outside the metal cabinet for better Wi-Fi reception. For SVZ, MVZ, PEAD, and PVA units.

20 cm CN105 cable routed inside a Mitsubishi wall unit 50 cm CN105 cable connected to a Mitsubishi MVZ-A18AA7 ducted air handler

Technical

HVAC connector
5-pin JST PAP-05V-S (CN105)
Board connector
4-pin Grove HY2.0
Length
20 cm or 50 cm
Pack size
1 or 4 cables
Sleeving
Standard or orange PET braid with heat-shrink ends
Wiring
Power and serial data; CN105's 12 V pin is left disconnected
Testing
Power and communication wires tested before shipping
Controller board
Sold separately

Works with

Fits the Serin Controller, M5Stack Atom S3 Lite, and NanoC6. See the supported boards and firmware installer.

Compatible CN105 projects include MitsubishiCN105ESPHome, mUART, mitsubishi2MQTT, and SwiCago/HeatPump.

Build it yourself

The wiring reference has the pinout, harness drawing, and connector part numbers to make your own cable.

In the box

Braided CN105-to-Grove cable

  • CN105-to-Grove cable

    20 cm, braided

    1× per pack

Controller board not included.

The complete controller

Controller and cable, assembled

The Serin Controller ships with this cable attached and tested, from $35.

See the controller Wiring reference