DS3231 AT24C32 High Precision Clock Module IIC Module Memory Module
- SKU:
- TBD0629025
- UPC:
- 6922529767979
- Availability:
- available
1. Size: 38mm (length) X22mm (width) X14mm (height)
2. Weight: 8g
3. Working voltage: 3.3--5.5V
4. Clock chip: High-precision clock chip DS3231
5. Clock accuracy: Within 0-40 degree C, accuracy 2ppm, annual error about 1 minute
6. With 2 calendar alarm clocks
7. Programmable square wave output
8. Real-time clock generates seconds, minutes, hours, week, date, month and year time, and provides leap year compensation valid to 2100 years
9. The temperature sensor inside the chip has an accuracy of +/- 3 degree C
10. Memory chip: AT24C32 (storage capacity 32K)
11. IIC bus interface, high transmission speed 400KHz (when working voltage is 5V)
12. Can cascade other IIC devices, 24C32 address can be modified by short circuit A0 / A1 / A2, the default address is 0x57
13. With rechargeable battery LIR2032 to ensure that the clock still runs normally after the system is powered off
14. Packing: Single anti-static packaging
15. Wiring instructions (taking Arduino uno r3 as an example):
SCL -- A5
SDA -- A4
VCC -- 5V
GND -- GND
16. DS3231 is a low-cost, high-precision I2C real-time clock (RTC) with integrated temperature-compensated crystal oscillator (TCXO) and crystal. The device contains a battery input, which can maintain accurate timing when the main power is disconnected. The integrated crystal oscillator improves the long-term accuracy of the device and reduces the number of components in the production line. The DS3231 offers commercial and industrial temperature ranges and is available in a 16-pin 300mil SO package.
17. RTC saves seconds, minutes, hours, day, date, month and year information. Months less than 31 days will automatically adjust the end of the month, including corrections for leap years. The working format of the clock can be 24 hours or a 12-hour format with / AM / PM indication. Provide two configurable calendar alarms and a configurable square wave output. The address and data are transferred serially via the I2C bidirectional bus.
Sophisticated, temperature-compensated voltage reference and comparator circuits are used to monitor VCC status, detect power failures, provide reset outputs, and automatically switch to backup power when necessary. In addition, the / RST monitor pin can be used as a manual input to generate a P reset.
18. In addition to high timing accuracy, the DS3231 also has some other functions that expand the additional functions and selection range of the system host. The device integrates a very accurate digital temperature sensor, which can be accessed through the I2C * interface (just like time). The accuracy of this temperature sensor is +/- 3 degree C. The on-chip control circuit can realize automatic power supply detection and manage the power supply switching between the main power supply and the backup power supply (that is, the low-voltage battery). If the main power supply is powered down, the device can continue to provide accurate timing and temperature without affecting performance. When the main power supply is re-energized or the voltage value returns to the allowable range, the on-chip reset function can be used to restart the system microprocessor.
Returns
Our policy lasts 30 days. If 30 days have gone by since you received your purchase, unfortunately we can’t offer you a refund or exchange.
To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.
Several types of goods are exempt from being returned. Perishable goods such as food, flowers, newspapers or magazines cannot be returned. We also do not accept products that are intimate or sanitary goods, hazardous materials, or flammable liquids or gases.
Additional non-returnable items:
- Gift cards
- Downloadable software products
- Some health and personal care items
- To complete your return, we require a receipt or proof of purchase.
- Please do not send your purchase back to the manufacturer.
There are certain situations where only partial refunds are granted (if applicable)
CD, DVD, VHS tape, software, video game, cassette tape, or vinyl record that has been opened
Any item not in its original condition, is damaged or missing parts for reasons not due to our error
Any item that is returned more than 30 days after delivery
Refunds (if applicable)
Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.
If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within a certain amount of days.
Late or missing refunds (if applicable)
If you haven’t received a refund yet, first check your bank account again.
Then contact your credit card company, it may take some time before your refund is officially posted.
Next contact your bank. There is often some processing time before a refund is posted.
If you’ve done all of this and you still have not received your refund yet, please contact us at info@Glamwize.com.
Sale items (if applicable)
Only regular priced items may be refunded, unfortunately sale items cannot be refunded.
Exchanges (if applicable)
We only replace items if they are defective or damaged. If you need to exchange it for the same item, send us an email at info@Glamwize.com.
Cancellations
If you need to cancel an order, please contact us as soon as possible. Once the order has been processed and shipped, it cannot be canceled.
Gifts
If the item was marked as a gift when purchased and shipped directly to you, you’ll receive a gift credit for the value of your return. Once the returned item is received, a gift certificate will be mailed to you.
If the item wasn’t marked as a gift when purchased, or the gift giver had the order shipped to themselves to give to you later, we will send a refund to the gift giver and he will find out about your return.
Shipping
You will be responsible for paying for your own shipping costs for returning your item. Shipping costs are non-refundable. If you receive a refund, the cost of return shipping will be deducted from your refund.
Depending on where you live, the time it may take for your exchanged product to reach you, may vary.