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GPIO

Helios64 provides 16 GPIOs via a 20-Pin header (P5). Those GPIOs are provided via an 16-bit IO Expander PCA9655E connected to I2C bus 2.

P5 Location

Pinout

P5 Pinout

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

Last update: April 20, 2020

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