Help: How to test changes in an existing integration (fromZigbee, toZigbee)

[mgarea]

Hi everyone,

I have purchased a Lonsonho curtain switch and I want to add support for calibration, but I need some help to do the tests.
The Tuya version of the switch supports calibration. However, the Lonsonho version does not support it through the Zigbee2MQTT addon (It only exposes cover_position).

I'm using the hassio-zigbee2mqtt add-on for Home Assistant. I know Zigbee2MQTT uses zigbee-herdsman-converters to communicate with devices. I read all the documentation and I want to modify an integration by manually editting devices.js, fromZigbee.js and toZigbee.js. However I don't know it that's even possible nor how to do it.

I read many discussions about how to customize the integration, but I don't know how to access files devices.js, fromZigbee.js and toZigbee.js in my Hassio installation.
I found some information about how to add support for new devices and how to define external converters, but I just want to edit an existing integration:

• Adding support for new devices
• External converters configuration
• How to support new Tuya devices

That said, Is it possible to edit an existing integration by manually modifying devices.js, fromZigbee.js and toZigbee.js? How can I do that?
I'm thinking about using the external converters approach to overwrite the current device. Will that work?

As a side note, I found an interesting discussion about the integration of this device here, and I wanted to test what some users propose in that topic.

Thanks in advance.

Best,
Manuel

[Koenkk]

The easiest way to do this is by using a bare metal installation (https://www.zigbee2mqtt.io/getting_started/running_zigbee2mqtt.html). Then devices.js is available under /opt/zigbee2mqtt/node_modules/zigbee-herdsman-converters/devices.js