LG TV controller
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So I received my serial converter the other day and did some testing. I connected the converter to one of my FTDI adapters and to the TV. I found out how to send the commands to the TV. The TV will respond with OK if the command was successful or ERR if it wasn't. The one thing I can't get from the TV is feedback such as power on and other commands. It would be nice to be able to tell when it is turned on and off manually, but I will work with what I have.
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@Smurphen, that is a good point.I could wire the 5 volts from that to an input on the nano and check for a state change on that. I have seen USB cables that are basically a short usb extension with another pigtail coming off to pull power for a device. Can't remember what it was from though. If I could find one of those, I could keep the functional use of the USB port (if needed) while still pulling power for this.
My next step is to write the sketch needed to do the control from MySensors. Part of my problem in this is that I am currently running Domoticz which I am seeing doesn't work well with this. Some of the functions I may have a hard time implementing. I am looking at possibly getting a Vera controller soon though which may be more flexible in this regard.
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@tbowmo said:
Just out of curiosity, which parts is hard to implement in domoticz?
I guess I was just thinking about things like setting volume level and channel number. With my Sharp Aquos TV I have to send 2 parts, the command and the parameter. An example would be for volume, on the node side I need to send the command "VOLM" and a number from 0 to 60. I would need 2 parts in Domoticz. Somthing to tell it to use the volume command, and something else to send it the level (the 0 to 60).
I was thinking of somehow controlling it with my Amazon Echo which I was reading up on and seems a bit tedious to integrate. I would like to be able to say things like, "Alexa, change the channel to 43", or "Alexa, set volume level to 20".
Some of what I am planning with this node is not only control of my TV, but also IR control of my cable box. This is going to make my node more complex. I don't think it is going to be that hard to do some of the basic stuff in Domoticz, like power on/off and channel up/down, but like for volume, there is no volume up/down command. And for changing the channel, I do that on the cable box. I don't use the internal tuner on the TV. Some of this I would program the node to handle, like when a channel change is sent, do that with the IR to the cable box, whereas a power command would control both the TV and cable box.
These are some of the things that I think are going to be a bit difficult with Domoticz.
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Just an idea, use a dimmer in domoticz for the volume, when you receive a value from the controller, then send VOLM and the value.. There is no need for the controller to know how to set the volume (the VOLM command)
For IR commands, that's probably another story, Haven't looked that much into it (yet).. Right now I have a logitech harmony elite, integrated with domoticz, so that I (from domoticz) can turn on different scenes.. But I can not send an individual command to the tv, or the radio..
