I haven't tested it, but this one seems to fit what you need
https://github.com/mycontroller-org/serial2mqtt/blob/master/README.adoc

You should move the define for the node ID before you include mysensors.h

You can remove these lines, the declaration is already done in the MySensors framework. For presentation() it is needed because you write code there, that is in the function. Now you only call the function, and the code is already in the framework.

@skywatch said in Auto resend on NACK:

@electrik & @Marek - Are you both sure about that? It seems to me that both those statements are doing what was intended.

Now that I see it again, I'm not so sure anymore actually.

In your code you used the variable msg. That should be one of msgFgeHum, msgFgeTemp, msgFzrHum, msgFzrTemp.
That is why the compiler complains msg is unknown.

You also enabled the ack message, this is just a software acknowledge, while the send function returns the status of the hardware acknowledge. So if you check with

if (send(msgFgeHum.set(fgehum),true))
{
// this is sent ok
}
else
{
// sending failed
}

you check if the hardware acknowledge was successful. The software ack should be tested differently and some more logic is needed for it.

Hope this helps

If you use an ISP programmer, you can reprogram the fuses and use it on lower voltages also. Upto 1.8v but also 3.3v

Exactly. Better to ask then waste many hours

I am using the Pinchange interrupts to wake up from sleeping.
Maybe this helps?
See code snippets below.

#include <PinChangeInt.h>  //include PinChange lib from MySensors utilities

in setup()

  attachPinChangeInterrupt(BotLeft_PIN, BotLeft_ISR, CHANGE);

and in the ISR

void BotLeft_ISR() {
_wokeUpByInterrupt = 0xFE; // work-around to force MS lib to handle this interrupt
 // more code here
}

@niclas comment the

#define MY_DEBUG

In your gateway sketch

@harrdy You don't have to use a stepdown board, you can just use a resistor divider to lower the voltage.
With one diode you will still not have a DC signal yet, better to use two diodes or a bridge rectifier. After the rectifier place a capacitor and the resistor divider.

You should do the same for requestTime();

@BearWithBeard Thanks that did it.
Could it be the TX and RX are switched on the BMP in your post?

This is a good tip to add to the build instructions. Check if you plugged the cable

@BearWithBeard
What did you do to get the serial pins of the Ebyte development board configured correctly, when using the generic board variant in platformIO? I've copied MyBoardNRF5.cpp but this is not used it seems.
Also redefining the definitions from variant.h

#define PIN_SERIAL_TX (11)
#define PIN_SERIAL_RX (12)

doesn't give serial output.

@BearWithBeard
Great explanation, thanks!
On my windows 10 installation I had to run Zadig to make the programming from platformIO work.

@skywatch said in s_cover commands, doubts??:

That is, can controller send V_UP to make blind go up and then when it reaches its up limit can V_UP be used to send that info back to the controller. Are all the V_x in S_COVER binary values?

Yes, the binary values in fact enable and disable the buttons on the controller. So if the cover is up, you send false for the up child, and the button will be disabled.

This worked for me in Home Assistant:

MyMessage fadeCtrl(CHILD_ID_FADE_CTRL, V_PERCENTAGE); // one child ID
... 

  fadeCtrl.setType(V_DOWN); 
  send (fadeCtrl.set(true)); // enable down
  fadeCtrl.setType(V_UP);
  send (fadeCtrl.set(false)); // disable up
 
  fadeCtrl.setType(V_STOP); 
  send (fadeCtrl.set(false)); // disable stop

  fadeCtrl.setType(V_STATUS);
  send (fadeCtrl.set(level)); // update position

I have no idea, sorry...
Personally I use node red for automations, from there you can just address the node and child directly even when it isn't presented or not supported by home assistant.

@rvendrame
I think you should start with presenting a sensor as S_CUSTOM with V_VAR1 as described here
https://www.home-assistant.io/integrations/sensor.mysensors/
That should show up in HA and from there you can control the values from HA.
I hope this helps.

You're welcome!
I've used node red like you are doing for some times and it works well. Since around 1-2 years I'm using home assistant as controller, and node red for the logic in automations.
Home assistant makes life much easier, as it for example takes care of filling data into influxdb automatically