diff --git a/boards/blackpill-128kib/Kconfig b/boards/blackpill-128kib/Kconfig
index d0299e6458..dcf447d38c 100644
--- a/boards/blackpill-128kib/Kconfig
+++ b/boards/blackpill-128kib/Kconfig
@@ -15,4 +15,6 @@ config BOARD_BLACKPILL_128KIB
     select CPU_MODEL_STM32F103CB
     select MODULE_BOARDS_COMMON_BLXXXPILL if TEST_KCONFIG
 
+    select HAS_HIGHLEVEL_STDIO
+
 source "$(RIOTBOARD)/common/blxxxpill/Kconfig"
diff --git a/boards/blackpill-128kib/Makefile.dep b/boards/blackpill-128kib/Makefile.dep
index a15ea55fa4..28350fcfa9 100644
--- a/boards/blackpill-128kib/Makefile.dep
+++ b/boards/blackpill-128kib/Makefile.dep
@@ -1,3 +1,4 @@
 USEMODULE += boards_common_blxxxpill
 
 include $(RIOTBOARD)/common/blxxxpill/Makefile.dep
+include $(RIOTBOARD)/common/makefiles/stdio_cdc_acm.dep.mk
diff --git a/boards/blackpill-128kib/Makefile.features b/boards/blackpill-128kib/Makefile.features
index 09dd9aafb6..245a32f90f 100644
--- a/boards/blackpill-128kib/Makefile.features
+++ b/boards/blackpill-128kib/Makefile.features
@@ -1,3 +1,5 @@
 CPU_MODEL = stm32f103cb
 
+FEATURES_PROVIDED += highlevel_stdio
+
 include $(RIOTBOARD)/common/blxxxpill/Makefile.features
diff --git a/boards/blackpill-128kib/blackpill-128kib.config b/boards/blackpill-128kib/blackpill-128kib.config
new file mode 100644
index 0000000000..7699f35a5c
--- /dev/null
+++ b/boards/blackpill-128kib/blackpill-128kib.config
@@ -0,0 +1,3 @@
+CONFIG_MODULE_USBUS=y
+CONFIG_MODULE_USBUS_CDC_ACM=y
+CONFIG_MODULE_STDIO_CDC_ACM=y
diff --git a/boards/bluepill-128kib/Kconfig b/boards/bluepill-128kib/Kconfig
index fc284abed0..aad5ed6edd 100644
--- a/boards/bluepill-128kib/Kconfig
+++ b/boards/bluepill-128kib/Kconfig
@@ -15,4 +15,6 @@ config BOARD_BLUEPILL_128KIB
     select CPU_MODEL_STM32F103CB
     select MODULE_BOARDS_COMMON_BLXXXPILL if TEST_KCONFIG
 
+    select HAS_HIGHLEVEL_STDIO
+
 source "$(RIOTBOARD)/common/blxxxpill/Kconfig"
diff --git a/boards/bluepill-128kib/Makefile.dep b/boards/bluepill-128kib/Makefile.dep
index a15ea55fa4..28350fcfa9 100644
--- a/boards/bluepill-128kib/Makefile.dep
+++ b/boards/bluepill-128kib/Makefile.dep
@@ -1,3 +1,4 @@
 USEMODULE += boards_common_blxxxpill
 
 include $(RIOTBOARD)/common/blxxxpill/Makefile.dep
+include $(RIOTBOARD)/common/makefiles/stdio_cdc_acm.dep.mk
diff --git a/boards/bluepill-128kib/Makefile.features b/boards/bluepill-128kib/Makefile.features
index 09dd9aafb6..245a32f90f 100644
--- a/boards/bluepill-128kib/Makefile.features
+++ b/boards/bluepill-128kib/Makefile.features
@@ -1,3 +1,5 @@
 CPU_MODEL = stm32f103cb
 
+FEATURES_PROVIDED += highlevel_stdio
+
 include $(RIOTBOARD)/common/blxxxpill/Makefile.features
diff --git a/boards/bluepill-128kib/bluepill-128kib.config b/boards/bluepill-128kib/bluepill-128kib.config
new file mode 100644
index 0000000000..7699f35a5c
--- /dev/null
+++ b/boards/bluepill-128kib/bluepill-128kib.config
@@ -0,0 +1,3 @@
+CONFIG_MODULE_USBUS=y
+CONFIG_MODULE_USBUS_CDC_ACM=y
+CONFIG_MODULE_STDIO_CDC_ACM=y
diff --git a/examples/dtls-echo/Makefile.ci b/examples/dtls-echo/Makefile.ci
index faed299588..206d270e99 100644
--- a/examples/dtls-echo/Makefile.ci
+++ b/examples/dtls-echo/Makefile.ci
@@ -3,6 +3,8 @@ BOARD_INSUFFICIENT_MEMORY := \
     b-l072z-lrwan1 \
     blackpill \
     bluepill \
+    blackpill-128kib \
+    bluepill-128kib \
     bluepill-stm32f030c8 \
     calliope-mini \
     cc2650-launchpad \
diff --git a/examples/micropython/Makefile.ci b/examples/micropython/Makefile.ci
index a4111fe904..4fb155b5fc 100644
--- a/examples/micropython/Makefile.ci
+++ b/examples/micropython/Makefile.ci
@@ -1,6 +1,8 @@
 BOARD_INSUFFICIENT_MEMORY := \
     blackpill \
     bluepill \
+    blackpill-128kib \
+    bluepill-128kib \
     bluepill-stm32f030c8 \
     calliope-mini \
     i-nucleo-lrwan1 \
diff --git a/examples/wakaama/Makefile.ci b/examples/wakaama/Makefile.ci
index 895b697e4c..6d6cb59165 100644
--- a/examples/wakaama/Makefile.ci
+++ b/examples/wakaama/Makefile.ci
@@ -3,6 +3,8 @@ BOARD_INSUFFICIENT_MEMORY := \
     b-l072z-lrwan1 \
     blackpill \
     bluepill \
+    blackpill-128kib \
+    bluepill-128kib \
     bluepill-stm32f030c8 \
     calliope-mini \
     cc2650-launchpad \
diff --git a/tests/gnrc_sixlowpan_frag_sfr/Makefile.ci b/tests/gnrc_sixlowpan_frag_sfr/Makefile.ci
index d9649a363d..59d485e8da 100644
--- a/tests/gnrc_sixlowpan_frag_sfr/Makefile.ci
+++ b/tests/gnrc_sixlowpan_frag_sfr/Makefile.ci
@@ -10,6 +10,8 @@ BOARD_INSUFFICIENT_MEMORY := \
     atxmega-a3bu-xplained \
     blackpill \
     bluepill \
+    blackpill-128kib \
+    bluepill-128kib \
     bluepill-stm32f030c8 \
     derfmega128 \
     hifive1 \
diff --git a/tests/gnrc_tx_sync/Makefile.ci b/tests/gnrc_tx_sync/Makefile.ci
index 89ad7e4e96..d3ac4e5d79 100644
--- a/tests/gnrc_tx_sync/Makefile.ci
+++ b/tests/gnrc_tx_sync/Makefile.ci
@@ -9,6 +9,8 @@ BOARD_INSUFFICIENT_MEMORY := \
     atmega328p \
     atmega328p-xplained-mini \
     atxmega-a3bu-xplained \
+    blackpill-128kib \
+    bluepill-128kib \
     bluepill-stm32f030c8 \
     derfmega128 \
     hifive1 \
diff --git a/tests/pkg_lz4/Makefile.ci b/tests/pkg_lz4/Makefile.ci
index a32cf3d675..8204456395 100644
--- a/tests/pkg_lz4/Makefile.ci
+++ b/tests/pkg_lz4/Makefile.ci
@@ -7,6 +7,8 @@ BOARD_INSUFFICIENT_MEMORY := \
     arduino-nano-33-iot \
     bastwan \
     bluepill-stm32f030c8 \
+    blackpill-128kib \
+    bluepill-128kib \
     calliope-mini \
     feather-m0 \
     feather-m0-lora \
diff --git a/tests/xtimer_now32_overflow/Makefile b/tests/xtimer_now32_overflow/Makefile
index a1079e38f2..deab386119 100644
--- a/tests/xtimer_now32_overflow/Makefile
+++ b/tests/xtimer_now32_overflow/Makefile
@@ -18,6 +18,8 @@ BOARD_BLACKLIST += \
                    weact-f401cc \
                    weact-f401ce \
                    weact-f411ce \
+                   blackpill-128kib \
+                   bluepill-128kib \
                    #
 
 include $(RIOTBASE)/Makefile.include
diff --git a/tests/xtimer_now64_continuity/Makefile b/tests/xtimer_now64_continuity/Makefile
index b70fae6407..48e4e18507 100644
--- a/tests/xtimer_now64_continuity/Makefile
+++ b/tests/xtimer_now64_continuity/Makefile
@@ -19,6 +19,8 @@ BOARD_BLACKLIST += \
                    weact-f401cc \
                    weact-f401ce \
                    weact-f411ce \
+                   blackpill-128kib \
+                   bluepill-128kib \
                    #
 
 # microbit qemu failing currently