michaelkroll/BLE-Shield — pull request #6 by davidahouse (2014-02-24 00:48:54+00:00)
Title: Updated BLEShieldSS to include setting the pinModes

Ran into this issue with my 1.0.0 BLE Shield running on an Arduino UNO. Arduino could receive data but couldn't send back. Setting the pinModes fixed it, which makes sense because pin 3 is used to transmit from Arduino, so unless its set to OUTPUT it will not send data correctly.