diff --git a/.buildbot/openwrt/build.sh b/.buildbot/openwrt/build.sh
index 47b8b93..057d03b 100755
--- a/.buildbot/openwrt/build.sh
+++ b/.buildbot/openwrt/build.sh
@@ -58,8 +58,12 @@ cp ${pwd}/authorized_keys files/etc/dropbear
 chmod 0400 files/etc/dropbear/authorized_keys
 mkdir -p files/etc/uci-defaults
 cp ${pwd}/defaults/* files/etc/uci-defaults
+mkdir -p files/boot/overlays
+cp ${pwd}/overlays/*.txt files/boot/
+cp ${pwd}/overlays/*.dtbo files/boot/overlays/
 
-PACKAGES="kmod-nf-nathelper-extra kmod-rtc-ds1307 \
+
+PACKAGES="kmod-i2c-bcm2835 kmod-nf-nathelper-extra kmod-rtc-ds1307 \
 	  kmod-usb-audio kmod-usb-net-rtl8152 \
 	  alsa-lib pciutils usbutils \
 	  kmod-usb-net-qmi-wwan libqmi qmi-utils uqmi luci-proto-qmi \
diff --git a/overlays/dualeth.txt b/overlays/dualeth.txt
new file mode 100644
index 0000000..88e2df6
--- /dev/null
+++ b/overlays/dualeth.txt
@@ -0,0 +1,7 @@
+dtparam=i2c_vc=on
+dtoverlay=i2c-rtc,pcf85063a,i2c_csi_dsi
+
+[all]
+
+[cm4]
+otg_mode=1
diff --git a/overlays/sensing.txt b/overlays/sensing.txt
new file mode 100644
index 0000000..d6818d9
--- /dev/null
+++ b/overlays/sensing.txt
@@ -0,0 +1,18 @@
+dtparam=i2c_arm=on
+enable_uart=1
+
+dtoverlay=ed-sdhost
+dtoverlay=i2c-rtc,pcf8563
+
+dtoverlay=spi1-1cs
+dtparam=cs0_pin=18,cs0_spidev=disabled
+dtoverlay=ed-mcp2515-spi1-can0
+dtoverlay=uart2
+dtoverlay=uart3
+dtoverlay=uart4
+dtoverlay=uart5
+gpio=11=op,dl
+[all]
+
+[cm4]
+otg_mode=1