Ds3231 At24c32 Iic Module Precision Real Time Clock Module Memory Module Arduino

US $1.99

Shenzhen, Guangdong, China
Jan 29th

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Attention: The photos are for your reference only. Product Introduction (We do wholesale, please inquire us for the detail.) 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 ?P 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 ° 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. Module parameters: 1 Size: 38mm (length) * 22mm (W) * 14mm (height) 2 Weight: 8g 3 Operating voltage :3.3 - 5 .5 V 4 clock chip: high-precision clock chip DS3231 5 Clock Accuracy :0-40 °C range, the accuracy 2ppm, the error was about 1 minute 6 calendar alarm clock with two 7 programmable square-wave output 8 Real time clock generator seconds, minutes, hours, day, date, month and year timing and provide valid until the year 2100 leap year compensation 9 chip temperature sensor comes with an accuracy of ± 3 °C 10 memory chips: AT24C32 (storage capacity 32K) 11.IIC bus interface, the maximum transmission speed of 400KHz (working voltage of 5V) 12 can be cascaded with other IIC device, 24C32 addresses can be shorted A0/A1/A2 modify default address is 0x57 13 with rechargeable battery LIR2032, to ensure the system after power failure, the clock move any natural normal 14 Packing: single anti-static packaging Wiring instructions (with Arduino uno r3 for example): SCL -> A5 SDA -> A4 VCC -> 5V GND -> GND Shipping list: DS3231 module X1PCS Note: don't include battery, it only need 0.01 dollars, it's not safety to ship by air mail. Terms & Conditions Sales Terms & Conditions Please contact with us in English only, we are sorry for the inconvenience caused to you, thank you! Payment Terms & Conditions We can accept PayPal on eBay selling, please settle payment within 2 days after the auction ends, if you have any difficulty regarding payment, please contact with us ASAP. Feedback & Case/Dispute When you get the item you bought, if you satisfied with it and our service, please leave us Positive Feedback & 5 Star DSR to us. If you have any problem, please contact with us in advance. We can give you response within 24 hours when we get your message, we'll try our best to give you the better solution. Please don't open Case / Dispute or leave Negative / Neutral to us directly, or you'll assume the responsibility/result. Shipping / Postage Terms & Conditions Carrier: China / Hong Kong / Singapore / Swiss / Sweden / Netherlands / Belgium Post (ship to all over the world except US) US: It's required to add extra shipping cost than other country via ePacket Delivery (eBay Policy) from China with tracking number (7-15 business days). Shipping Detail Shipping Method International Flat Shipping (Economy Int'l Shipping) Registered Air Mail (Standard Int'l Shipping) FedEx/DHL/UPS/TNT/EMS Delivery Time 10-20 Working Days 10-20 Working Days 3-7 Working Days Shipping Tracking Without Tracking Number Registered Airmail Parcel / Note: 1. If you have selected "Economy Int'l Shipping" with extra Registered Charge, you'll get the tracking number on the eBay transaction as the following example image in about 1-2 working days after your payment: 2. All the tracking number can be tracked in the following website (http://www.17track.net/index_en.shtml) in about 2-3 working days later after we ship out. Please allow 10-20 working days (depends on where you are) for delivery, because all item will be shipped from our our warehouse in China via Air Mail. The item will be posted to you within 1-2 working day generally after the payment is cleared on seller's side. All the fee & tax in oversea must be paid by buyer. Return & Replacement Terms & Conditions Postage is not returnable. We will refund you the price of the item less postage. Seller is not responsible for the postage of returning items. Buyer can return the item in the original package within 7 days upon receiving if you are not happy with it/ We will refund you or send replacement to you within 3 working day after the item is received. Welcome to visit our store again. On Dec-08-14 at 12:34:43 PST, seller added the following information:

Condition:

New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is applicable). Packaging should be the same as what is found in a retail store, unless the item is handmade or was packaged by the manufacturer in non-retail packaging, such as an unprinted box or plastic bag. See the seller's listing for full details. ...

Country of Manufacture

China