DS3231 AT24C32 IIC Precision Real Time Clock RTC Memory Module for Arduino USA

Description

Free USPS First Class Shipping. May receive as quickly as in 3 days!
Featured Item
DS3231 is a low-cost, extremely accurate I2C real-time clock (RTC), with an integrated temperature-compensated crystal oscillator (TCXO) and crystal.
The device incorporates a battery input, disconnect the main power supply and maintains accurate timekeeping.
Integrated oscillator improve long-term accuracy of the device and reduces the number of components of the production line.
The DS3231 is available in commercial and industrial temperature ranges, using a 16-pin 300mil SO package.
RTC maintains seconds, minutes, hours, day, date, month, and year information. Less than 31 days of the month, the end date will be automatically adjusted, including corrections for leap year.
The clock operates in either the 24 hours or band / AM / PM indication of the 12-hour format. Provides two configurable alarm clock and a calendar can be set to a square wave output.
Address and data are transferred serially through an I2C bidirectional bus.
A precision temperature-compensated voltage reference and comparator circuit monitors the status of VCC to detect power failures, provide a reset output, and if necessary, automatically switch to the backup power supply.
In addition, / RST pin is monitored as generating uP reset manually.         Save time and high precision addition, DS3231 also has some other features that extend the system host of additional features and a range of options.
The device integrates a very precise digital temperature sensor, through the I2C * interface to access it (as the same time).
This temperature sensor accuracy is +- 3 degrees C. On-chip power supply control circuit can automatically detect and manage the main and standby power (i.e., low-voltage battery) to switch between the power supply.
If the main power failure, the device can continue to provide accurate timing and temperature, performance is not affected. When the main power re-power or voltage value returns to within the allowable range, the on-chip reset function can be used to restart the system microprocessor.
Specification
-  Size: 38mm (length) * 22mm (W) * 14mm (height)
- Weight: 8g
- Operating voltage :3.3 - 5 .5 V
- Clock chipset : high-precision clock chip DS3231
- Clock Accuracy :0-40 Deg. Cel. range, the accuracy 2ppm, the error was about 1 minute
- Calendar alarm clock with two
- Programmable square-wave output
- Memory chips: AT24C32 (storage capacity 32K)
- IIC bus interface, the maximum transmission speed of 400KHz (working voltage of 5V)
- Can be cascaded with other IIC device
- 24C32 addresses can be shorted A0/A1/A2 modify default address is 0x57
- Packing: single anti-static packaging
Wiring instructions (with Arduino uno r3 for example)
- SCL -> A5
- SDA -> A4
- VCC -> 5V
- GND -> GND
Included in this package
- 1X PCS Arduino RTC
Shipping & Payment
Payment
-
We require
Paypal
payment only.
- Your order will be cancelled if the payment is not received in one week.
We offer USPS First Class Shipping /
Not Ecomomy
- There is a big difference between USPS First Class Shipping and Economy Shipping
- Ecomomic delivery could take upto 5 days even to reach the seller's local post office
- Economy are collected in bulk by a third courier and shipped to post office to receive a discount
- Our orders are shipped daily and sent to USPS post office directly
- Please place an order with us. You will be pleasantly surprised by our service
Shipping
- Delivery area: We are only shipping within 48 continental United States.
-
Delivery method: USPS Priority & USPS First Class. Choose Priority for fast delivery.
- Handling time: 1 business day after receiving payment. If USPS is open, we are open too.
- All our items are shipped with the tracking number.
- Buyers are responsible to provide us with the correct address. Please confirm your address.
Handling And Return
- We accept return within 14 days after delivery.
- Defective items will be exchanged or fully refunded on buyers request.
- 15% restocking fee will be charged on non defective items.
- All items need to be returned in original package with all the supplies.
- Shipping and handling fees are non-refundable under any circumstances.
- Our goal is 100% customer satisfaction.
- Got a problem? No Problem.
Contact us by eBay message system.
- We will reply promptly during business hours.
Customer Support
- Please do not open a case or leave us a bad feedback. This can only delay our service.
- Mon~Fri: 9AM to 5PM | Sa:t 9AM to 12PM | Sun: Closed (Eastern Standard Time)
- If you are happy with your purchase, please leave us a 5 star feedback. Thank you.
Copyright 2018
Designed and Maintained by miniduino an eBay Store