MOD-IO2 / Olimexino 328 Firmware problem?

[fookatchu]

Hi!

I have an Olimexino-328 with an MOD-IO2-Board. I now have the problem, that the example arduino library doesn't work. I powered the Olimexino with the usb-supply and the IO2 with an external power supply (12V). The example code wants digitalRead(2) to be LOW, which i do not really get. Does this refer to the UEXT pin 2? Anyhow, i assume i have an old firmware and the example code is only for v3. Is there a way to check this? By LED behavior? The power led is contantly on, no blinking etc. And if i do have an old firmware, can i upgrade without buying a pic-programmer?

thanks for any help!

[selfbg]

Hi,

Can you post the example code that you're using?

There is easy way to check which firmware you're using.
The new (version 3) have unique Check_ID register.

Open Check_ID.ino (in arduino_dir/libraries/MOD_IO2/examples/Check_ID or from examples menus) and upload it on olimexino-328. If you get Checking ID: OK - you have firmware version 3. Otherwise - firmware version 2. There is no need to upgrade firmware. The only difference is the communication protocol. If you stick with the MOD-IO2 that you have there will be no problems.


Best regards,
Stefan

[fookatchu]

Hi!

Sorry for the delay, i was on vacation . The code is the example code which is included in the arduino library. The Check_ID code is not running, so i assume i have an <3 board. This would not be a problem, but i don't find any documentation on the protocol or an arduino lib for the older versions. Do i have to look up the i2c documentation in the datasheet of the relays?

[selfbg]

You can find some additional information at:
https://www.olimex.com/wiki/MOD-IO2

There check information about firmware version 2.

[fookatchu]

Ah, somehow i missed that. I hoped to find a ready-to-go arduino lib, but it seems i have to to this with i2c. thanks for your help!