RTC Modules

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DS1307 RTC Module with Battery for Raspberry Pi Introduction This RTC module is specifically designed for the Raspberry Pi. It communicates with Raspberry Pi through I2C bus and includes a Maxim DS1307 and CR1220 button cell on the board to keep a real time clock for a long time after the Pi has powered down. Just set a serial port, and you have a convenient way of online debugging using TTL. Supports Raspberry Pi B/A+/B+/2 model B/3 model B...

$5.90 SKU:DFR0386 In Stock
Gravity: I2C SD2405 RTC Module Introduction We're glad to introduce a new member in Gravity family: Gravity I2C SD2405 RTC module. This is an extremely accurate I2C real-time clock (RTC) with crystal compensation, inner chargeable battery. The SD2405AL is available in industrial temperature ranges. The SD2405AL is dual power supply system. When the primary power supply goes down to an assigned value or resumes from low power,..

$8.90 SKU:DFR0469 Out Of Stock
Real Time Clock Module (DS1307) V1.1 Introduction The DS1307 Real Time Clock module developed by one of our designers: Waiman. The module comes fully assembled and pre-programmed with the current time (ok, so it's our current time - MST). The included Lithium coin cell battery (CR1225 41mAh) will run the module for a minimum of 9 years (17 years typical) without external 5V power. The DS1307 is accessed via the I2C prot..

$4.40 SKU:DFR0151 Out Of Stock
-32%

SD2403 Real -Time clock Module(Gadgeteer Arduino Compatible) Introduction A real-time clock (RTC) is a computer clock (most often in the form of an integrated circuit) that keeps track of the current time.The term is used to avoid confusion with ordinary hardware clocks which are only signals that govern digital electronics, and do not count time in human units. Compared with the cheap RTC module in the market now, this SD2403 Real-time clock ..

$7.90 $11.55 SKU:TOY0020 In Stock
-34%

SD2405 Real-Time clock Module(Arduino Gadgeteer Compatible) Introduction A real-time clock (RTC) is a computer clock (most often in the form of an integrated circuit) that keeps track of the current time.The term is used to avoid confusion with ordinary hardware clocks which are only signals that govern digital electronics, and do not count time in human units. Compared with the cheap RTC module in the market now, this SD2405 Real-time clock ..

$8.90 $13.55 SKU:TOY0021 In Stock

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