The Real-Time Clock card (RTC) uses the NXP PCF2123 and a CR2032 battery to keep time of day when your robot is off. It has an active low alarm output that can turn on your robot or automation at a preset time. The alarm output is designed specifically to driver the remote-on input on the PD25 and PD15 cards.
- NXP PCF2123
- CR2032 battery backup
- Alarm LED and open-drain output
- Alarm output can control power-ON on PD25 or PD15
- Uses the ESPI 7474 circuit for reliable operation