PiDroid is really nice...

sgrayban

So my project was having a bigger touch screen for my home automation and its coming along just fine.... a week after I started I have it all working great. The touch screen I used is a Planar 19 inch and Fully Kiosk Browser.

kalkov

Awesome, thanks for sharing!

BasicItStuff

Cool lcars Interface

sgrayban

@BasicItStuff said:
Cool lcars Interface

Thanks !

kalkov

@sgrayban, which RTC do you use? Can you share the configuration? We can put a tutorial on our website.

Baroska

very cool!

Baroska

@kalkov said:
@sgrayban, which RTC do you use? Can you share the configuration? We can put a tutorial on our website.

that would be great

sgrayban

This one http://a.co/d/chDYroD

sgrayban

Makerfire® Raspberry Pi RTC Module Real Time Clock Module DS1307 Chip with Coin Battery

sgrayban

Directions

Edit /boot/config.txt
add
dtparam=i2c1=on
dtparam=i2c_arm=on
dtoverlay=i2c-rtc,ds1307
save file

reboot

login and check
type i2cdetect -y 1
Should show UU at line 60 slot 8

Then type
echo ds1307 0x68 > /sys/class/i2c-adapter/i2c-1/new_device

Make sure you are connected to the internet to let the Pi sync the right time from the Internet.
Once that's done, run date to verify the time is correct then run hwclock -w to write the time, and another hwclock -r to read the time and compare it's the same.

Reboot

The last step is hwclock -s but I don't see a way to auto execute that at boot time. Usually you can use /etc/rc.local but Android doesn't use it. Maybe @kalkov can answer that.

sgrayban

The purpose for hwclock -s is to make sure at boot time is synced from the RTC to system time/date.

sgrayban

sgrayban

If you are curious the RTC data is located in

/sys/class/i2c-adapter/i2c-1/1-0068