diff --git a/PiRTC/install.sh b/PiRTC/install.sh
new file mode 100755
index 0000000..c09277a
--- /dev/null
+++ b/PiRTC/install.sh
@@ -0,0 +1,13 @@
+#!/bin/sh
+
+# software
+sudo apt-get install python-smbus i2c-tool
+
+# check
+sudo i2cdetect -y 1
+
+# config
+cp /boot/config.txt /boot/config.bak
+echo "" >> /boot/config.txt
+echo "dtoverlay=i2c-rtc,ds3231" >> /boot/config.txt
+
diff --git a/PiRTC/setup.sh b/PiRTC/setup.sh
new file mode 100755
index 0000000..895c48a
--- /dev/null
+++ b/PiRTC/setup.sh
@@ -0,0 +1,17 @@
+#!/bin/sh
+
+# check
+sudo i2cdetect -y 1
+
+# remove fake
+sudo apt-get -y remove fake-hwclock
+sudo update-rc.d -f fake-hwclock remove
+sudo systemctl disable fake-hwclock
+
+# device
+cp hwclock-set /lib/udev/hwclock-set
+
+# set
+sudo hwclock -r
+sudo hwclock -w
+sudo hwclock -r