The documentation for RUI3 on RAK3172 specifies that there is a i2c port on pins PA9 (SCL) and PA10 (SDA).
Could I use different pins, like PA12 and PA11, that also have I2C function in STM32WLE5.
Kind regards
1 Like
I think there is a mismatch in the documentation.
In the RUI3 documentation for the RAK3172 (RAK3172 Module Quick Start Guide | RAKwireless Documentation Center) it is stated that there is a I2C port on pins PA9 and PA10 but…
…the pins identified as PA9 and PA10 are pins PA12 and PA11 according to RAK3172 datasheet (RAK3172 WisDuo LPWAN Module Datasheet | RAKwireless Documentation Center)
Which is correct?
PA11 and PA12 are correct.
The MCU has two I2C ports and the second one would be on PA9 and PA10, but is not supported by RUI3 yet.
@carlrowan
Can you check the documentation center.