Grove – RTC
£6.25 (ex VAT £5.21)
Real-Time Clock (RTC) counts into seconds with Leap-Year compensation valid up to 2100 Powered with CR 1225 lithium cell battery 56-Byte, Battery-Backed, Nonvolatile (NV)RAM for data storage
In stock
The RTC module is a member of Twig. It is based on the clock chip DS1307 which supports the I2C protocol. It uses a Lithium cell battery (CR1225). The clock/calendar provides seconds, minutes, hours, day, date,month, and year information. The end of the month date is automatically adjusted for months with fewer than 31 days, including corrections for leap year. The clock operates in either the 24-hour or 12-hour format with AM/PM indicator.
Features
- Real-Time Clock (RTC) counts seconds,minutes, hours, date of the month, month,day of the week, and year with Leap-Year compensation valid up to 2100
- 56-Byte, Battery-Backed, Nonvolatile (NV)RAM for data storage
- I2C serial interface
- 5V DC supply
- Programmable Square-Wave output signal
- Automatic Power-Fail detect and switch circuitry
- Consumes less than 500nA in Battery-Backup Mode with Oscillator Running
Application Ideas
- Calendar
- Intelligent instrument
- Industrial control
Cautions
In order to gain a robust performance, you must put a 3-Volt CR1225 lithium cell in the battery-holder. If you use the primary power only, the module may not work normally, because the crystal may not oscillate.
Documents
Please visit our wiki page for more info about this product. It will be appreciated if you can help us improve the documents, add more demo code or tutorials
| Weight | 20 g |
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Delivery Information
- Free UK Delivery for orders over £100 The free shipping method uses Royal Mail’s RM48 service, batteries are excluded.
- Same Day Dispatch For orders placed before 3PM (UK Time) Mon-Fri Excluding Bank Holidays
- Need something Urgently? Select RM special delivery during checkout to have your order delivered next working day guaranteed (assuming you order before 15:00 when we are open)
Returns Information
- 30 Day Return Period If you change your mind you have up to 30 days to return something. Must be returned in as new condition
- 180 Day Warranty For items with a manufacturer defect or an issue resulting from damage during delivery to you. Consumable items such as batteries are excluded.
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