I use a 12v to 5v converter to power my relay board as its too much for the tablet to run so you’ll be ok doing that and just use the nano as the input trigger.
You could possibly just use a 12v relay board to start with and not bother with the 5v converter
Thanks again for your help.
Tried powering it this evening using another usb.
But i was joined into the usb cable, this didn’t work as my tablet needs to send power to be able to see the usb device!
Will try powering the board only!
Think at this stage i need to think about another tablet or ethernet!
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Having only one usb port on my tablet means I will have to use something like this.
Would this work ok, aiming to plug the rtk2b into the usb port and my machine board (and everything that comes after) into the Ethernet?
Then this to run the nano? Using 5v from one of the usb ports to power the board?
I got a usb splitter like that running gps, imu and machine module (1 relay) with no issues
Ok looks like a plan then.
Think i will look for one with more ethernet ports and maybe one usb port.
Would keep it open for future projects.
I think that the reason of this problem is a week quality of tablet. I using Something like that (Panasonic FZ-G1): AgOpenGPS Tablet Panasonic FZ-G1 8GB 256 SSD +LAN do nawigacji rolniczej - Sklep KOMPIX