Associate II

Question

bno055 with stm32

I wanted to see if the bno055 sensor is ready and set the PB8, PB9 pins as SDA, SCL. (my mcu = stm32f334r8)

connections

SDA_pin -> SDA pin sensor

SCL_pin -> SCL pin sensor

VCC -> VCC

GND -> GND

but the variable is never HAL_OK

thanks for answer.

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ST Employee

Hello @Hamdi Huntürk ,

Please make sure you are using the correct parameters for the communication :

Foued

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Associate II

@KHALSI_Foued I checked the maximum speed and default value but same result

ST Employee

Please check pin connection :

Because It's works (0x28<<1) with

HAL_I2C_Mem_Read()

Foued

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Associate II

actually it works this way but why didnt work HAL_I2C_IsDeviceReady function

Associate II

Is ADR pin important for device address?

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