@felmue SOLVED - thanks for that - CH2 works as expected!

Hi - I have a PbHub with a 2-relay unit connected to (if it matters) CH5. The 2-relay unit works fine when connected directly to the Core 2 device/Port C, but when connected to the PbHub, only 1 or the two relays will switch.

I'm using micropython and:

pbhub_0.digitalWrite(5, 0, 0)
pbhub_0.digitalWrite(5, 0, 1)

-- works (off/on)

pbhub_0.digitalWrite(5, 1, 0)
pbhub_0.digitalWrite(5, 1, 1)

-- doesn't do anything

the 2-relay unit (confusingly) has labeled channels of 1 and 2 on the device, A and B on the schematic - and takes 1 and 2 as relay identifiers if you're controlling it directly (via Port A) the UI flow code/micropython is:

relay2_0.set_value(1, 0)
relay2_0.set_value(1,1)
relay2_0.set_value(2,0)
relay2_0.set_value(2,1)

I'm considering addressing the PbHub directly or trying arduino code, but just wondering if there's some obvious reason I'm missing.

-Thanks!

Hi @felmue - thanks for that - although I have to admit it didn't help me quite as much as it ideally would. My vague understanding is that to flash the new address you attach an FTDI dongle to some of the pins - hope I don't sound completely incompetent, but was hoping for a tutorial...

Thanks!

Hi - the EXT.IO2 says that it "Supports configuration of device I2C address, which means that users can mount multiple EXT.IO2 UNITs on the same I2C BUS to extend more IO resources." but I don't see any documentation on how to actually do this. Does anyone have a tutorial or explanation?

Thanks!