Imports periph.io/x/periph/conn/spi periph.io/x/periph/devices/ssd1306/image1bit periph.io/x/periph/conn periph.io/x/periph/conn/i2c periph.io/x/periph/conn/gpio periph.io/x/periph/devices Standard library imports bytes errors fmt image/draw image image/color