diff --git a/examples/dtls-echo/Makefile.ci b/examples/dtls-echo/Makefile.ci
index 0e7e4cfccf..b964559249 100644
--- a/examples/dtls-echo/Makefile.ci
+++ b/examples/dtls-echo/Makefile.ci
@@ -1,22 +1,30 @@
 BOARD_INSUFFICIENT_MEMORY := \
     airfy-beacon \
-    b-l072z-lrwan1 \
+    arduino-duemilanove \
+    arduino-leonardo \
+    arduino-mega2560 \
+    arduino-nano \
+    arduino-uno \
+    atmega1284p \
+    atmega328p \
+    atmega328p-xplained-mini \
+    atxmega-a3bu-xplained \
     blackpill-stm32f103c8 \
     blackpill-stm32f103cb \
     bluepill-stm32f030c8 \
     bluepill-stm32f103c8 \
     bluepill-stm32f103cb \
     calliope-mini \
-    cc2650-launchpad \
-    cc2650stk \
+    derfmega128 \
     hifive1 \
     hifive1b \
     i-nucleo-lrwan1 \
     im880b \
-    lsn50 \
-    maple-mini \
+    mega-xplained \
     microbit \
-    nrf51dk \
+    microduino-corerf \
+    msb-430 \
+    msb-430h \
     nrf51dongle \
     nrf6310 \
     nucleo-f030r8 \
@@ -24,20 +32,16 @@ BOARD_INSUFFICIENT_MEMORY := \
     nucleo-f042k6 \
     nucleo-f070rb \
     nucleo-f072rb \
-    nucleo-f103rb \
     nucleo-f302r8 \
     nucleo-f303k8 \
     nucleo-f334r8 \
     nucleo-l011k4 \
     nucleo-l031k6 \
     nucleo-l053r8 \
-    nucleo-l073rz \
-    opencm904 \
     samd10-xmini \
     saml10-xpro \
     saml11-xpro \
     slstk3400a \
-    spark-core \
     stk3200 \
     stm32f030f4-demo \
     stm32f0discovery \
@@ -45,5 +49,9 @@ BOARD_INSUFFICIENT_MEMORY := \
     stm32g0316-disco \
     stm32l0538-disco \
     stm32mp157c-dk2 \
+    telosb \
+    waspmote-pro \
     yunjia-nrf51822 \
+    z1 \
+    zigduino \
     #
diff --git a/examples/dtls-sock/Makefile.ci b/examples/dtls-sock/Makefile.ci
index 230d191b48..e0a920b713 100644
--- a/examples/dtls-sock/Makefile.ci
+++ b/examples/dtls-sock/Makefile.ci
@@ -3,21 +3,15 @@ BOARD_INSUFFICIENT_MEMORY := \
     b-l072z-lrwan1 \
     blackpill-stm32f103c8 \
     blackpill-stm32f103cb \
+    bluepill-stm32f030c8 \
     bluepill-stm32f103c8 \
     bluepill-stm32f103cb \
-    bluepill-stm32f030c8 \
     calliope-mini \
-    cc1350-launchpad \
-    cc2650-launchpad \
-    cc2650stk \
-    e104-bt5010a-tb \
-    e104-bt5011a-tb \
     hifive1 \
     hifive1b \
     i-nucleo-lrwan1 \
     im880b \
     lsn50 \
-    maple-mini \
     microbit \
     nrf51dongle \
     nrf6310 \
@@ -26,28 +20,22 @@ BOARD_INSUFFICIENT_MEMORY := \
     nucleo-f042k6 \
     nucleo-f070rb \
     nucleo-f072rb \
-    nucleo-f103rb \
     nucleo-f302r8 \
     nucleo-f303k8 \
     nucleo-f334r8 \
     nucleo-l011k4 \
     nucleo-l031k6 \
     nucleo-l053r8 \
-    nucleo-l073rz \
-    olimexino-stm32 \
-    opencm904 \
     samd10-xmini \
     saml10-xpro \
     saml11-xpro \
     slstk3400a \
-    spark-core \
     stk3200 \
     stm32f030f4-demo \
     stm32f0discovery \
     stm32f7508-dk \
     stm32g0316-disco \
     stm32l0538-disco \
-    stm32mindev \
     stm32mp157c-dk2 \
     yunjia-nrf51822 \
     #
diff --git a/examples/gcoap_dtls/Makefile.ci b/examples/gcoap_dtls/Makefile.ci
index b5fc7e8abc..21a39ee469 100644
--- a/examples/gcoap_dtls/Makefile.ci
+++ b/examples/gcoap_dtls/Makefile.ci
@@ -1,5 +1,16 @@
 BOARD_INSUFFICIENT_MEMORY := \
     airfy-beacon \
+    arduino-duemilanove \
+    arduino-leonardo \
+    arduino-mega2560 \
+    arduino-nano \
+    arduino-uno \
+    atmega1284p \
+    atmega328p \
+    atmega328p-xplained-mini \
+    atxmega-a1-xplained \
+    atxmega-a1u-xpro \
+    atxmega-a3bu-xplained \
     b-l072z-lrwan1 \
     blackpill-stm32f103c8 \
     blackpill-stm32f103cb \
@@ -7,12 +18,17 @@ BOARD_INSUFFICIENT_MEMORY := \
     bluepill-stm32f103c8 \
     bluepill-stm32f103cb \
     calliope-mini \
+    derfmega128 \
     hifive1 \
     hifive1b \
     i-nucleo-lrwan1 \
     im880b \
     lsn50 \
+    mega-xplained \
     microbit \
+    microduino-corerf \
+    msb-430 \
+    msb-430h \
     nrf51dongle \
     nrf6310 \
     nucleo-f030r8 \
@@ -29,8 +45,6 @@ BOARD_INSUFFICIENT_MEMORY := \
     samd10-xmini \
     saml10-xpro \
     saml11-xpro \
-    seeedstudio-gd32 \
-    sipeed-longan-nano \
     slstk3400a \
     stk3200 \
     stm32f030f4-demo \
@@ -39,5 +53,9 @@ BOARD_INSUFFICIENT_MEMORY := \
     stm32g0316-disco \
     stm32l0538-disco \
     stm32mp157c-dk2 \
+    telosb \
+    waspmote-pro \
     yunjia-nrf51822 \
+    z1 \
+    zigduino \
     #