Imports periph.io/x/periph/conn/spi/spitest periph.io/x/periph/conn/i2c/i2creg periph.io/x/periph/conn/spi periph.io/x/periph/conn/i2c periph.io/x/periph/conn/physic periph.io/x/periph/conn/spi/spireg periph.io/x/periph/devices/bmxx80 periph.io/x/periph/conn/i2c/i2ctest Standard library imports errors flag fmt