4 Channel Capture Board 1 GPIO[00] 2 GPIO[01] 3 GPIO[02] 4 GPIO[03] 5 GPIO[04] 6 GPIO[05] 7 GPIO[06] 8 GPIO[07] 9 GPIO[08] 10 GPIO[09] 11 GPIO[10] 12 GPIO[11] 13 GPIO[12] 14 GPIO[13] 15 GPIO[14] 16 GPIO[15] 17 GPIO[16] 18 GPIO[17] 19 GPIO[18] 20 GPIO[19] 21 GPIO[20] 22 GPIO[21] 23 GPIO[22] 24 GPIO[23] 25 GPCLK 26 GND 27 ÅŸ»? 28 ÅŸ»? 29 VDD 30 VDD 31 SCL? (I2C) 32 GND 33 SDA? (I2C) 34 GND sub board 1 Dout2 2 Dout3 3 Dout4 4 Dout5 5 Dout6 6 Dout7 7 Dout8 8 Dout9 9 NC (No connect) 10 NC 11 NC 12 NC 13 NC 14 NC 15 NC 16 NC 17 NC 18 NC 19 NC 20 NC 21 NC 22 NC 23 NC 24 NC 25 PCLKout 26 27 28 29 30 31 32 33 34