I designed a breakout board for the STM32F401CEU6. (Schematic attached)I am using it to receive data from an ADC chip over SPI.The ADC chip has a data ready output which should be used as an interrupt pin to let the MCU know there is data available t...

I'm having trouble using the HAL libraryies to send data I receive from the LIS3DSH accelerometer on the STM32F4 discovery to a HC-06 Bluetooth board.I can receive the data from the LIS3DSH fine and use STMStudio to check that the data is all streami...