New COMMAND to handle a verbose device.

[msillano]

The imagination of the designers of Tuya devices never ceases to amaze me.

The device I am using now, a (DIN Power Meter OPWTY-63) presents a strange behavior, never met before. All DPS are more or less normal, except DP 6, that sends all RT data (V ,A, W, I_leak) in an encoded structure. DP 6 is only PUSHED in case of data change, as [event:dp-refresh], (all others sent as [event:data]) often at full speed that is one message per second. Any REFRESH command is ignored. The DP 6 cannot be read ! A SCHEMA returns all DPS, except DP 6 ! There is a DP called 'mute mode', but I don't know its purpose: it certainly has nothing to do with data throughput. 1 message per second from one device (and I plan to use two) is too much !. An update every 60-90 seconds is enough for my application (basically a data logger).

I have to slow down this flood of messages, and the best solution I have found is to disable shouldSubscribeRefreshData at intervals. I need a COMMAND that allows the user to modify the 'Listen to tuya events' parameter in real time. The algorithm I thought of is the following: In Polling, every 60-90 seconds:

1. shouldSubscribeRefreshData = true
2. I await the receipt of one or two messages from the DP 6
3. shouldSubscribeRefreshData= false

The code required in tuya-smart-device.js is simple, now I'm testing it:

          case 'CONTROL':
             ... here existing commands .....
            } else if (msg.payload.action == 'SET_DATA_EVENT'){
          shouldSubscribeData = true;
                  shouldSubscribeRefreshData = true;
         if (msg.payload.value === 'event-data') 
                     shouldSubscribeRefreshData = false;
             if (msg.payload.value === 'event-dp-refresh') 
                    shouldSubscribeData = false;
                node.log(  `Event subscription : shouldSubscribeData=>${shouldSubscribeData} , shouldSubscribeRefreshData=>${shouldSubscribeRefreshData}`
           )

note: this works only if the device is configured 'both' as default.

I don't know if this feature is worth considering, but it's the only solution I've found: it might be useful to other users. Best regards m.s.

update: 2 more changes in callbacks:

              //  if (shouldSubscribeRefreshData) {      // deplaced 1 line down
        tuyaDevice.on('dp-refresh', (data) => {
      if (shouldSubscribeRefreshData) {          // here
                    node.log(....
              .....more.....
              }                                                      //  here
         });
       //  }                                                          // deplaced up

same:

        //  if (shouldSubscribeData) {             // deplaced 1 line down
  tuyaDevice.on('data', (data) => {
     if (shouldSubscribeData) {                     /  /here
             node.log(... 
         ...more...
              }                                                      //  here
         });
       //  }                                                          // deplaced up

LOG:

              27 Aug 06:41:23 - [info] [tuya-smart-device:Breaker DIN] Recieved input : {"payload":{"operation":"GET","schema":true},"topic":"Fast cmd for DIN power meter","_msgid":"cc952072d0d3641b"}
              27 Aug 06:41:23 - [info] [tuya-smart-device:Breaker DIN] Data from device  [event:data]: {"dps":{"1":470,"9":0,"11":false,"12":false,"13":10020,"16":true,"19":"FSE-F723C51D0A720B","101":272,"102":172,"103":45,"104":35,"105":false,"106":false}}

              27 Aug 06:41:24 - [info] [tuya-smart-device:Breaker DIN] Recieved input : {"payload":{"operation":"CONTROL","action":"SET_DATA_EVENT","value":"alldata"},"_msgid":"7b2876be8697b1b5","_event":"node:3a1df4f8.435cec"}
              27 Aug 06:41:24 - [info] [tuya-smart-device:Breaker DIN] Event subscription : shouldSubscribeData=>true , shouldSubscribeRefreshData=>true
              27 Aug 06:41:28 - [info] [tuya-smart-device:Breaker DIN] Data from device  [event:dp-refresh]: {"dps":{"6":"CNQAAGQAAAEAAA=="},"t":1661575288}
              27 Aug 06:41:28 - [info] [tuya-smart-device:Breaker DIN] Recieved input : {"payload":{"operation":"CONTROL","action":"SET_DATA_EVENT","value":"event-data"},"_msgid":"ab57eefcaba5120f","_event":"node:3a1df4f8.435cec"}
              27 Aug 06:41:28 - [info] [tuya-smart-device:Breaker DIN] Event subscription : shouldSubscribeData=>true , shouldSubscribeRefreshData=>false

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