Hello,
I want to use a I2C Hat. Since my device is not working, i dived a bit deeper and found
when i look for the gpio layout with mraa-gpio list, i get:
01 3V3:
02 5V:
03 UART1_TX: GPIO UART
04 5V:
05 UART1_RX: GPIO UART
06 GND:
07 GPIO1_D4: GPIO
08 UART2_TX: GPIO UART
09 GND:
10 UART2_RX: GPIO UART
11 PWM_IR: GPIO PWM
12 GPIO2_C2: GPIO
13 GPIO2_A3: GPIO
14 GND:
15 GPIO0_D3: GPIO
16 USB20DM:
17 3V3:
18 USB20DP:
19 SPI0_TXD: GPIO SPI
20 GND:
21 SPI0_RXD: GPIO SPI
22 ADC_IN1: GPIO AIO
23 SPI0_CLK: GPIO SPI
24 SPI0_CSN0: GPIO SPI
25 GND:
26 GPIO2_B4: GPIO
27 I2C1_SDA: GPIO I2C
28 I2C1_SCL: GPIO I2C
29 GPIO2_C4: GPIO
30 GND:
31 GPIO2_C5: GPIO
32 GPIO2_C0: GPIO
33 PWM2: GPIO
34 GND:
35 GPIO2_C1: GPIO
36 GPIO2_B7: GPIO
37 GPIO2_C6: GPIO
38 GPIO2_C3: GPIO
39 GND:
40 GPIO2_C7: GPIO
When i look now into the pinlayout of rockPi E (https://wiki.radxa.com/RockpiE/dev/libmraa) i see that the I2C pins are 3 and 5.
How can i do the overlay settings, that the I2C is realy listening to pin 27 and 28.
thank you