UEXT: How to connect OLIMEXINO-32U4 to MOD-IRDA+

[erkobg]

Hello,

I would like to use MOD-IRDA+
https://www.olimex.com/Products/Modules/Interface/MOD-IRDA+/

from OLIMEXINO-32U4   
https://www.olimex.com/Products/Duino/AVR/OLIMEXINO-32U4/open-source-hardware

There is very handy connector  UEXT but the problem is that I am not able to detect or do anything- even with the examples listed in the products page.

Can you share what is the best approach and examples if you have any.

[Lurch]

--just in case--
The 3,3V power on the EXT port is controlled by the setting of the D8 pin on the 32U4. Be sure that you are setting D8 so that power is supplied to the IRDA module. The user manual explains this.

[erkobg]

Hello Lurch,
thanks for the advice!

Yes I am always setting that pin in Setup with:

Code Select Expand

pinMode (8, OUTPUT);    // UEXT Power
  digitalWrite (8, LOW);  // UEXT Power turned on

But the problem comes with the UEXT and how to read the sensor data....


Regards!