I've managed to get Node-Red to initialise it.... and to listen for a slider control.. works a treat - but.... actually setting the status of the slider on the APP itself I'm getting no-where. I'm sure it's a silly mistake.
Could I ask you to take a quick look.
So I've made LIGHT1 and LIGHT2.
I can subscribe in Node-Red to LIGHT1
No problem - I can read the slider as I move it on the APP.
But when I send this message back to the APP..
I get absolutely nothing - I would expect the APP slider position to move accordingly to the value 3 but it does not. I thought I'd replicated your examples... but clearly not. Where did I go wrong in this last item?