Hello!!
anyone knows how to use the BATT pin and know the voltage on lithium battery?
best regards.
Hello!!
anyone knows how to use the BATT pin and know the voltage on lithium battery?
best regards.
Can you please provide a link to the device ?
here is a photo to the device http://blog.simtronyx.de/wp-content/uploads/Tiny-RTC-DS1307-Echtzeituhr-Pinout-Rueckseite-blog.simtronyx.de_.jpg
3V coin batteries CR1220 (12mm diameter) or CR2016/CR2032 (20mm diameter) work fine. They also last years (hence no need for the more expensive rechargeables).