Best posts made by Jmarcusse

Thanks for your responses.

MiniPro is running correctly, program Blink is able to manage pin 2 and 3 and activate leds.
With a MySensors Node programme, all is good, and correctly activate when FTDI card is used, Rx and Tx send debbug messages all is correct, Domoticz manage correctlty the node, and drive the 2 leds as wanted.
Problem come as soon as I connect the 230V / 5V module on board : leds are not drived correctly, sometime one is not activate, or desactivate. Only 10% drived correctly.

So my test this afternoon :
If supplying MiniPro by PC via USB and FDTI card provide a good situation, I try to send MY supply (module 230V/5V) to the Vcc pin used by PC (not the legal Vcc input, not the RAW pin) : it's better, 95% drived correctly.

Vcc pin for serial, and Vcc pin ProMini are not the same, not relation with ohmeter...

For connecting earth, I haven't near my heaters. I can try on table to see what's happen.

I will continue, I have to soluce. Best regards.

Responses :

• Supplied by USB:
  Vcc Usb = 5,01V ; Vcc MiniPro = 4,59V ; RAW MiniPro = 4,59V ; NRF = 3,28V

• Supplied by 230V module Onboard :
  Vcc Usb = -1,97V !!! ; Vcc MiniPro = 4,98V ; RAW MiniPro = 4,989V ; NRF = 3,29V

• Supplied by 230V module Out of PCB, far at 95cm, 5V and 0V twisted between module and PCB :
  Vcc Usb = -0,30V !!! ; Vcc MiniPro = 4,95V ; RAW MiniPro = 4,95V ; NRF = 3,29V

And I can tell you a real good new : all is correct when module is far....
When I approach the module on its place on PCB, leds are not drived correctly, probleme is coming!!! When module is distanced in up from PCB (6 à 8mm), all is good. So, I have now to try to redesign PCB for trace the ground in other direction, sure not under transformer of the module.
I can say you good thanks, if you not help me, I cannot run heaters.. Really thanks, and I wish you a Merry Chrismas as possible this year. Best regards.