I think im starting to understand it....in arduino SerialGateway i read inputs in void serialEvent() method right? Im using PiGatewaySerial as a gateway, but im lost witch method supose to read inputs, maybe gw->parseAndSend(buff) is used for sending commands. So i have to read commands from pty_master?
@olaeke I would think you may be pushing it. Any way to use a few separate supplies for a short time to see if that helps? If you decide to just upgrade your supply, you may want to put caps on the radios to help stabilize the bus.
I bought one too but had no time to test it yet (In fact I was waiting for you
No worries, @epierre . I put a test webserver on the iBoard to make sure it was working OK. I was able to browse an SD card over ethernet so I didn't want to bother their support people. I never heard from @nneeoo and just decided to go the hardware route. It seems to be working just fine. I recommend it. It's more stable than the serial gateway I was running.
I got that exact batch of 10 from the same seller a couple of weeks ago. I did try one radio randomly and it did seem to work at 250kbps. Perhaps it is time to look at those radios again. Haven't really used them in a "production" unit.
It is relatively easy to send a command to an existing node (you can do this via serial monitor and a gateway node or even with any other mysensors node). But you did not write the setup of your system. Who will send the command (the fhem gw node)? which node will receive (another node especially for controlling the relais)? I did not get who shall do what with which ressources..