Pay in 4 interest-free payments of $65.88 Learn more
Ships within 48 hours · Estimated delivery Aug 20 - Aug 25
(we recommend the 
They pair well with Arduino
status signals
4: Sensor interface :for connecting sensors
Talk about awesome
DFRobot Gravity SD2405 I2C RTC Module - DFR0469 red (we recommend the We're glad to introduce a new member in Gravity family: Gravity I2C SD2405 RTC module. This is an extremely accurate I2C real time clock (RTC) with crystal compensation, inner chargeable battery. The SD2405AL is available in industrial temperature ranges. The SD2405AL is dual power supply system. When the primary power supply goes down to an assigned value or resumes from low power, the system can switch between the primary power supply and battery
