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Topic: output voltage digital I/O (Read 830 times) previous topic - next topic

guidoc

Majenko,

The mega board has only a AREF pin, no IOref.
The ADK-board has AREF and IOREF. I will check the voltage on that pin.

Fungus,
The output can not be overloaded. One board is never connected with the relay shield.
The relay shield has opto couplers. Max current is 5 mA.
I use this shield :
http://www.aliexpress.com/item/New-16-Channel-12V-Relay-Module-Interface-Board-For-Arduino-PIC-ARM-DSP-PLC/668259106.html

fungus


Majenko,

The mega board has only a AREF pin, no IOref.


Try the "5V" pin.

No, I don't answer questions sent in private messages (but I do accept thank-you notes...)

guidoc

problem solved after I disconnected the 5V comming from the arduino, on the connector of the relay board.

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