I would like to develop my own central device to communicate with the RedBear Arduino shield. The RB device uses a from of UART communications to send data to/from Android and iOS applications. There is sample UART code for using the S120 soft device for the heart rate monitor, but I am certain that the two UARTS are not the same. What is the best way to determine the changes to be made to the Nordic code to match up with the RedBear shield? I will be using a PCA10001 dev board for the Central device. Any guidance would be appreciated.