esp-idf/docs/_static/diagrams
..
adc
dac
ethernet
etm
i2c
i2s
mcpwm
mmu
ring-buffer
rmt
sd
spi
spi_flash
twai
usb
i2c-command-link-master-read-blockdiag.diag
i2c-command-link-master-write-blockdiag.diag