Tuya M3 curtain motor (_TZE204_xu4a5rhj/M3TYW-2.0-13) percentage inverted

[devkaiwang]

What happened?

I recently purchased a Tuya curtain motor, model _TZE204_xu4a5rhj/M3TYW-2.0-13. The motor is of good quality and quiet. However, there is an annoying issue when setting the motor's percentage through the Home Assistant cover UI or the Tuya app's curtain animation, the toZigbee percentage is inverted.

I wrote this converter code, which successfully fixed the problem. I’m curious if others have encountered this same issue or if it’s just a firmware bug specific to my device.

const fz = require('zigbee-herdsman-converters/converters/fromZigbee');
const tz = require('zigbee-herdsman-converters/converters/toZigbee');
const exposes = require('zigbee-herdsman-converters/lib/exposes');
const reporting = require('zigbee-herdsman-converters/lib/reporting');
const tuya = require('zigbee-herdsman-converters/lib/tuya');
const legacy = require('zigbee-herdsman-converters/lib/legacy');
const e = exposes.presets;
const ea = exposes.access;

const invertedTuyaCoverControl = {
    key: ['state', 'position'],
    convertSet: async (entity, key, value, meta) => {
        if (key === 'position') {
            value = 100 - value; // Invert the position value
        }
        return await legacy.toZigbee.tuya_cover_control.convertSet(entity, key, value, meta);
    },
};

const definition = {
    zigbeeModel: [],
    fingerprint: [
        ...tuya.fingerprint('TS0601', [
            '_TZE204_xu4a5rhj',
        ]),
    ],
    model: 'TS0601_cover_1',
    vendor: 'Tuya',
    description: 'Curtain motor with corrected percentage setting',
    whiteLabel: [],
    fromZigbee: [legacy.fromZigbee.tuya_cover, fz.ignore_basic_report],
    toZigbee: [invertedTuyaCoverControl, legacy.toZigbee.tuya_cover_options],
    exposes: [
        e.cover_position().setAccess('position', ea.STATE_SET),
        e.composite('options', 'options', ea.STATE_SET)
            .withFeature(e.numeric('motor_speed', ea.STATE_SET)
                .withValueMin(0)
                .withValueMax(255)
                .withDescription('Motor speed'))
            .withFeature(e.binary('reverse_direction', ea.STATE_SET, true, false)
                .withDescription('Reverse the motor direction')),
    ],
};

module.exports = definition;

What did you expect to happen?

No response

How to reproduce it (minimal and precise)

No response

Zigbee2MQTT version

2.1.3

Adapter firmware version

20240710

Adapter

zStack3x0

Setup

Pi5

Debug log

No response