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Description
DFRobot MEMS Precise RTC DS3231M Module
Features a Real-Time Clock module
Offers high anti-vibration
Internal MEMS resonator and temperature compensator
High precision: ±5ppm (±0.432 s/D) at -45 to +85 °C
Features two programmable calendar alarms
The MEMS Precise RTC DS3231M Module is a Real-Time-Clock module, which integrates MEMS resonator and temperature compensator. Compared to the quartz crystal clock, the real-time clock reduces the risk of mechanical failure. Therefore, it can be used in a highly vibrating environment. Within -45 to +85°C, the accuracy of the DS3231M is ±5ppm (±0.432 s/D).
The DS3231M can be powered by a coin cell battery and can still maintain accurate timing even the mains are disconnected. RTC provides information about seconds, minutes, hours, days, months, and years. It can automatically adjust the end date of the month and the leap year correction.
Note: According to the latest Air Transport Regulations, the batteries, magnets and liquids transport will be very stringent, so the cell battery CR1220 will not come with the module anymore.
If you are not satisfied for whatever reason with a Product you bought on the Site, it is possible to return it for refund within 30 days from the date you received it unless otherwise indicated in the Product listing. You must first advise the Vendor associated with your order in your account to obtain a return authorization (‘’RA’’) number before returning a Product. (‘’RA’’) numbers are valid for 30 days, within which time the returned Products should be received by the Vendor. No returns will be accepted without having previously obtained an (‘’RA’’) number. The Product must then be returned in its original packaging (in perfect condition for resale) with its receipt and your (‘’RA’’) number. Reimbursement will be denied for any Products which do not conform to the above mentioned conditions.
Build-it-yourself Robot Parts are not refundable once assembled. Robots & Kits requiring assembly or soldering are also not refundable once assembled, soldered or modified in any way. All sales of robotic software and apps are final and cannot be refunded or exchanged. Returns are not accepted on special orders and clearance items except when they are found defective, in which case the Product may be repaired or replaced at the Vendor’s discretion. 20% Restocking fees may apply if you are returning a large quantity of the same Product that was ordered specifically for you from the manufacturer.
Please note that all items will be reimbursed within 7 to 14 days of receiving the Product (shipping fees excluded). You must also cover the cost of returning the Product. Shipping fees will only be refunded if the return is a result of a shipping error on our part. Cleaning fees of USD 100 may also be charged if a domestic robot is returned and has not been properly cleaned.
