Hubitat Telnet Driver Lighting Issues

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1

Hi all- I'm new to Hubitat, and I have been struggling to integrate my Legrand RFLC system into the Hubitat universe. I got the RF-RS232 adapter, and another adapter to make RS232 into Telnet, and a little custom programming later I have a driver that actually works! Granted, it doesn't parse data coming from the system, but it will work for what I need it to do.

I'm trying to control a Legrand light with a Lutron Pico. The driver worked for controlling one light

groovy.lang.MissingMethodException: No signature of method: user_driver_Evan_Taliesin_331.telnetStatus() is applicable for argument types: (org.codehaus.groovy.runtime.GStringImpl) values: [send error: Broken pipe (Write failed)] (telnetStatus)

This doesn't mean anything to me, and also means nothing to my programmer-friends. What does this mean?

I have been creating one driver for each Legrand device, and editing the string it sends to the Telnet client.

/**

 * 
 *  Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
 *  in compliance with the License. You may obtain a copy of the License at:
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software distributed under the License is distributed
 *  on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License
 *  for the specific language governing permissions and limitations under the License.
 *
 */

metadata {
	definition (name: "Taliesin", namespace: "Evan", author: "Samir_Genius") {
	capability "Initialize"
    capability "Telnet"
    capability "Switch"
    capability "Switch Level"
      
    /*    
    command "sendMsg", ["String"], int
    command "sendLevel", ["Brightness 0-255"]
    command "sendDimLevel", ["Brightness 0-255"]
        
    */
        
    attribute "Telnet", ""
    attribute "Switch", ""
        
	}
}

// device commands
def on() {
    initialize()
	log.debug "Send LNZL"
    /*
	sendEvent(name: "switch", value: "on")
    def msg = "shutdown -h now"
    log.debug "Sending msg = ${msg}"
    sendEvent(name: "switch", value: "off")
	sendHubCommand(new hubitat.device.HubAction("""$msg\r\n""", hubitat.device.Protocol.TELNET))
    */
    
    sendMsg('LNZG 2616')
    
}


    

def off() {
    initialize()
	log.debug "Send OFF"
    /*
	sendEvent(name: "switch", value: "on")
    def msg = "shutdown -h now"
    log.debug "Sending msg = ${msg}"
    sendEvent(name: "switch", value: "off")
	sendHubCommand(new hubitat.device.HubAction("""$msg\r\n""", hubitat.device.Protocol.TELNET))
    */
    
    sendMsg('RAMPG 2616 0')
    
}

def setLevel(level){
    /*
    def msg =  "${ttsPath}" + '/alexa_remote_control.sh -d "' + "${echoName}" + '" -e vol:' + "${level}"
    sendEvent(name: "level", value: level, unit: "%")
    sendEvent(name:'mute', value:'false')
    state.lastLevel = level
    */

    sendMsg(level)

}

    
// General App Events
def initialize(){
	telnetConnect('192.168.1.199', 23, null, null)
	log.debug "Opening telnet connection"

}

def parse(String message) {
    log.debug "parse: ${message}"
    

}

def sendMsg(String msg) 
{
	log.info("Sending telnet msg: " + msg)
	return new hubitat.device.HubAction(msg, hubitat.device.Protocol.TELNET)
}

def setLevel(BigDecimal level, BigDecimal fade){
    sendMsg("RAMPG 2616 " + (int)(level*2.55) + " " + fade)    
}

def setLevel(BigDecimal level){
    sendMsg("RAMPG 2616 " + (int)(level*2.55))    
}

If I am going about this whole thing wrong, please tell me.

Thanks in advance!

2

The error is telling you that you don't have a telnetStatus function defined in your driver, to receive messages back.

From the docs:

in addition it is required to create a method in the driver that accepts incoming messages (parse) and another method that will be called with any status updates for the endpoint (telnetStatus).

You can just define empty ones if you don't care about the responses:

def telnetStatus(String status){
}

edit: though if it's not working, you probably want to know what that status update says, by logging it :slight_smile:

1 Like
3

I recommend using status to log errors and check if the connection has failed to re-init it.

def telnetStatus(String status){
	logError("telnetStatus- error: ${status}")
	//check status and reinit if needed
}
4

Thanks so much for the help, I’ll try this out when I get home.