I have seen some post about LSC products, but I got a little confused and couldn’t find the proper setup for this HDMI syncbox. The built in Tuya recognises it as a simple light, but can’t control other features, particularly the main one (sync light to HDMI signal)
Here’s the procedure I used to find DPID of the functions (I’ve seen many guides and tutorials, but to me the screens looked a little different, maybe this could help someone else too):
First on the console at https://iot.tuya.com/ I click on the left sidebar menu Cloud>API Explorer. A new tab pops open, where on top left I select “IoT Core” (it should be already set by default):
Then in the left sidebar under the menu Device Control > Query properties and in the right textbox I insert my device_id (plenty of guides on how to get that, if you set up local-Tuya on HA you already should know this):
Click the blue "Submit button on the bottom under the textbox, and the right part should populate with the properties of the device where each function has its dp_id, like this:
{
"result": {
"properties": [
{
"code": "switch_led",
"custom_name": "",
"dp_id": 20,
"time": 1757626994504,
"type": "bool",
"value": false
},
{
"code": "work_mode",
"custom_name": "",
"dp_id": 21,
"time": 1757594694601,
"type": "enum",
"value": "colour"
},
These are the dp_ids you should use in HA to set the entities that will control the device.
This is what I was looking for:
{
"code": "sync_on_screen",
"custom_name": "",
"dp_id": 101,
"time": 1757619771823,
"type": "bool",
"value": false
},
So to control sync on screen I setup in HA local-tuya a switch linked to dp_id 101.
You can configure other parameters like the power button (dp_ip 20, see previous Json I pasted).
Final note: some of the properties are a list (like the dp_ip 21, work_mode), they are showed as “type”: “enum”.
To find the possible values of the list, that must be explicited during HA consifuration, I went to top menu again, and this time selected “Industry Basic Service”:
Then on the left sidebar “Industry Devices Management”>Get device attributes
again your device_id in the box and click blue submit button:
The box on the right again populates, this time with the attributes and their possible values:
{
"code": "work_mode",
"lang_config": {
"colour": "Color",
"music": "Local Music",
"scene": "Scene"
},
"name": "Mode",
"type": "Enum",
"values": "{\"range\":[\"colour\",\"scene\",\"music\"]}"
So now we know that the dp_id 21 work_mode that we found before can assume the values: range, colour, scene, music
I’m still scratching my head because some of the dp_ids are not in the list (like the weak/strong light for HDMI sync I used in my example, I went by guessing reporting the same text I see in app, I will update the post if I find out how to get these other properties list.
