Re: RFID MFRC522 SPI Connection Problem

2015-03-09 Thread Ytai Ben-Tsvi
The arguments you're providing to writeRead() are wrong. Sorry for the unfriendly error message. Specifically, make sure that the total length argument is at least as big as the maximum of request length and response length. On Sun, Mar 8, 2015 at 6:51 PM, Renato Sapienza

Using Multiple IOIO OTG Boards Question and Some Friendly Suggestions

2015-03-09 Thread Michael Grundvig
First off, thanks very much for creating a Java-powered IO board. For all my projects that need a lot of IO, I've ended up using the Phidgets 0/16/16 board and while it works well, it's a whopping 100 bucks a board for just 32 digital IO pins. Sparkfun's site showed the IOIO OTG and I ordered