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--- ubuntu:pi [2021-02-01 18:00] – remove cloud-init netplan config gabriel
+++ ubuntu:pi [2021-02-08 16:26] – adding rtc notes gabriel
@@ Line 119: / Line 119: @@
 Quick reference for Raspberry Pi hardware tools on Ubuntu.
+==== Configuring RTC on Ubuntu 20.04 LTS ====
+<code>
+# Install the I2C tools to access the bus and configure your RTC
+apt install i2c-tools
+# Enable your RTC in the Pi boot config
+RTCMODEL=ds3231
+echo "dtoverlay=i2c-rtc,$RTCMODEL" >> /boot/firmware/usercfg.txt
+# show I2C bus config (68 means hardware detected, UU after reboot means dtoverlay configured correctly and driver is loaded)
+i2cdetect -y 1
+</code>
+//Reference: [[https://pimylifeup.com/raspberry-pi-rtc/|Raspberry Pi RTC: Adding a Real Time Clock//
 ===== Reference =====