diff --git a/spi/01-NFC_PN5180/Makefile b/03-Bus/03-SPI/01-NFC_PN5180/Makefile
similarity index 100%
rename from spi/01-NFC_PN5180/Makefile
rename to 03-Bus/03-SPI/01-NFC_PN5180/Makefile
diff --git a/spi/01-NFC_PN5180/pn5180.c b/03-Bus/03-SPI/01-NFC_PN5180/pn5180.c
similarity index 100%
rename from spi/01-NFC_PN5180/pn5180.c
rename to 03-Bus/03-SPI/01-NFC_PN5180/pn5180.c
diff --git a/spi/02-Sub1G_CMT2301/Makefile b/03-Bus/03-SPI/02-Sub1G_CMT2301/Makefile
similarity index 100%
rename from spi/02-Sub1G_CMT2301/Makefile
rename to 03-Bus/03-SPI/02-Sub1G_CMT2301/Makefile
diff --git a/spi/02-Sub1G_CMT2301/cmt2301.c b/03-Bus/03-SPI/02-Sub1G_CMT2301/cmt2301.c
similarity index 100%
rename from spi/02-Sub1G_CMT2301/cmt2301.c
rename to 03-Bus/03-SPI/02-Sub1G_CMT2301/cmt2301.c
diff --git a/spi/Makefile b/03-Bus/03-SPI/Makefile
similarity index 100%
rename from spi/Makefile
rename to 03-Bus/03-SPI/Makefile
diff --git a/spi/ReadMe.md b/03-Bus/03-SPI/ReadMe.md
similarity index 100%
rename from spi/ReadMe.md
rename to 03-Bus/03-SPI/ReadMe.md
diff --git a/01-Debug/01-Panic/Makefile b/04-Debug/01-Panic/Makefile
similarity index 100%
rename from 01-Debug/01-Panic/Makefile
rename to 04-Debug/01-Panic/Makefile
diff --git a/01-Debug/01-Panic/test_ps.c b/04-Debug/01-Panic/test_ps.c
similarity index 100%
rename from 01-Debug/01-Panic/test_ps.c
rename to 04-Debug/01-Panic/test_ps.c
diff --git a/01-Debug/Makefile b/04-Debug/Makefile
similarity index 100%
rename from 01-Debug/Makefile
rename to 04-Debug/Makefile