I have just purchased a PmodBT2 but I confused as to the pin numbering. J1 is marked with Pin-1 but along the row does it go in numerical sequence 1,2,3,4,5,6 and start from the row next to Pin-1 as 6,7,8,9,10 or is it alternate as in 1,3,5,7,9,11 and 2,4,6,8,10,12 along the other row? Also the DS states that J1 6 & 12 are connected to J2-6 but, on measuring I have J1-6 & 12 joining to J2-5 !!!