Thank you crami25

I thought that I have to use the RELAY-Unit-Component and the PbHub.Unit-Component simultaneously in UIFlow.
But as you told me, I just have to set the Outputs on the PbHub to 0 oder 1 :-)
No need of the RELAY-Unit-Component in software.

from m5stack import *
from m5ui import *
from uiflow import *
import unit

setScreenColor(0x222222)
pbhub0 = unit.get(unit.PBHUB, unit.PORTA)

while True:
  pbhub0.digitalWrite(0, 0, 1)
  wait_ms(100)
  pbhub0.digitalWrite(1, 0, 1)
  wait_ms(100)
  pbhub0.digitalWrite(2, 0, 1)
  wait_ms(100)
  pbhub0.digitalWrite(3, 0, 1)
  wait_ms(100)
  pbhub0.digitalWrite(4, 0, 1)
  wait(1)
  pbhub0.digitalWrite(0, 0, 0)
  wait_ms(100)
  pbhub0.digitalWrite(1, 0, 0)
  wait_ms(100)
  pbhub0.digitalWrite(2, 0, 0)
  wait_ms(100)
  pbhub0.digitalWrite(3, 0, 0)
  wait_ms(100)
  pbhub0.digitalWrite(4, 0, 0)
  wait(1)

Great it works!

Best regards Thomas

You have to use the Pb-Hub unit, black connector of the relay units to the black connectors of the Pb-Hub (for analog and/or digital input/outputs, e.g. realys) . The Pa-Hub is used connecting i2c units (red connectors) with the same i2c address (e.g. to environment units).

You can programm the 6 channels (analog or digital, equivalent to multiple Core-B channels) of the Pb-hub using blockly.

good luck crami25