ElecFreaks
Octopus Real-time Clock
Octopus Electronic Bricks, you can use them to build electronics projects just as easy as piling bricks. By using Octopus electronic bricks, you may conne...
Octopus Electronic Bricks, you can use them to build electronics projects just as easy as piling bricks. By using Octopus electronic bricks, you may connect Arduino / Freaduino compatible boards easily with various digital, analog and I2C/Uart interfaces. These the breadboard-less firm connection are prepared to extensive modules like poteniometers, sensors, relays, servos ... even buttons, just plug and play.
OCTOPUS Real-time Clock is a clock module which can achieve counting for year, month, day, hour by using the DS1307 clock chip.This chip has lots of merits, low power supply, with 56 bytes of non-volatile RAM clock calendar full BCD code real-time clock chip, the address and data via a two-wire bidirectional serial bus transmission, providing seconds, minutes, hours and other information , automatically adjusting the number of days in each month. And more surprisingly, the chip also equip with the function of leap year compensation. Chip has a built-in power-sense circuit, brownout detection, and battery switching function.
Connecting types:
Parameter:
l Available for counting the seconds, hours, minutes, days of month, months, days of week
With the function of leap year compensation.
Year recording to the limit of 2100.
56 bytes of non-volatile RAM
Two-wire serial interface (IIC communication)
Programmable square-wave output
Automatic power-off detection and switching circuit
In battery backup mode, power consumption is less than 500nA
Industrial operating temperature: -40 to 80
Power supply needs: 5V and 3.3V
Interface type: Digital
Pin Definition: 1-GND 2-VCC 3-SCK 4-SDA 5-RST
Package:
Resources:
Please visit the ElecFreaks 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.
Jargon buster
Plain-language definitions for the technical terms used above.
- I2C
- I2C is a two-wire communication bus used by many sensors and small modules. It matters because several I2C devices can share the same two wires, but each device needs a compatible address and your controller must support I2C.
- RAM
- RAM is temporary memory used while a device is running, and its contents are lost when power is removed. A “Run in RAM” mode is useful for testing settings without permanently programming the module, but it may not support every feature.
- RST
- Short for reset, a control pin used to restart or initialise a device from a microcontroller. It matters because this sensor requires the RST pin to be connected for some communication setups.
- UART
- UART is a simple serial connection that sends data over separate transmit and receive wires, often labelled TX and RX. It matters because this module is designed to replace a wired UART cable with a wireless link while keeping the same serial data format.
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