kobol-wiki/docs/helios64/gpio.md
2020-03-02 06:56:31 +07:00

812 B

User Accessible GPIOs (P3)

Helios64 provides 22 GPIOs on header P3 which can be used for user application. Those GPIOs are provided via an 16-bit IO Expander PCA9655E connected to I2C bus 0.

P3 Pinout

Pinout Table

PIN Port Remarks
1 - 3.3V Supply
2 - 5V Supply
3 - GND
4 EXP_P0_0
5 EXP_P0_1
6 EXP_P0_2
7 EXP_P0_3
8 EXP_P0_4
9 EXP_P0_5
10 EXP_P0_6
11 EXP_P0_7
12 EXP_P1_0
13 EXP_P1_1
14 EXP_P1_2
15 EXP_P1_3
16 EXP_P1_4
17 EXP_P1_5
18 EXP_P1_6
19 EXP_P1_7
20 - GND