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Reviews
1. Diymore DS3231 AT24C32 IIC High Precision RTC Module Clock Timer Memory Board Beats DS1307 for Arduino
Feature
DS3231 is a low-cost, extremely accurate I2C real-time clock (RTC), with an integrated temperature-compensated crystal oscillator (TCXO) and crystal.Integrated oscillator improve long-term accuracy of the device and reduces the number of components of the production line.
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.
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.
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.
Description
Specification: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.
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.
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 (L) * 22mm (W) * 14mm (H)
2. Operating voltage :3.3 - 5 .5 V.
3. clock chip: high-precision clock chip DS3231..
4. Clock Accuracy :0-40 range, the accuracy 2ppm, the error was about 1 minute.
5. calendar alarm clock with two.
6. chip temperature sensor comes with an accuracy of 3.
7. memory chips: AT24C32 (storage capacity 32K).
8. IIC bus interface, the maximum transmission speed of 400KHz (working voltage of 5V).
Note: Don't inclue battery, it only need 0.01 dollars, it's not safty to ship by air mail. So hope you can understand it.
Package Included:
1 X DS3231 AT24C32 IIC High Precision RTC Module Clock Timer Memory Module
2. Diymore 2Pcs High Precision DS3231 AT24C32 IIC RTC Clock Timer Memory Module Replace DS1307 for Arduino
Feature
DS3231 is a low-cost, extremely accurate I2C real-time clock (RTC), with an integrated temperature-compensated crystal oscillator (TCXO) and crystal.Integrated oscillator improve long-term accuracy of the device and reduces the number of components of the production line.
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.
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.
Description
diymore 2PCS DS3231 AT24C32 IIC High Precision RTC Module Clock Timer Memory Module, without BatterySpecification:
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.
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.
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 (L) * 22mm (W) * 14mm (H)
2. Operating voltage :3.3 - 5 .5 V
3. clock chip: high-precision clock chip DS3231
4. Clock Accuracy :0-40 range, the accuracy 2ppm, the error was about 1 minute
5. calendar alarm clock with two
6. chip temperature sensor comes with an accuracy of 3
7. memory chips: AT24C32 (storage capacity 32K)
8. IIC bus interface, the maximum transmission speed of 400KHz (working voltage of 5V)
Note: Don't inclue battery, it only need 0.01 dollars, it's not safty to ship by air mail. So hope you can understand it.
Package Included:
2PCS* DS3231 AT24C32 IIC High Precision RTC Modules
3. SainSmart I2C RTC DS1307 AT24C32 Real Time Clock Module Board for Arduino AVR ARM PIC
Feature
IC interfaceDS1307 based RTC (No battery included)
Backup by AT24C32 32Kbit
DS1307,AT24C32 can work singleness
Dimention: 28x25x8.4mm; Weight:6.3g
Description
Package List:
1 x DS1307 module board
4. diymore 5Pcs DS3231 AT24C32 IIC High Precision RTC Module Clock Timer Memory Board Beats DS1307 for Arduino
Feature
Integrated oscillator improve long-term accuracy of the device and reduces the number of components of the production line.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.
DS3231 is a low-cost, extremely accurate I2C real-time clock (RTC), with an integrated temperature-compensated crystal oscillator (TCXO) and crystal.
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.
Description
diymore 5PCS DS3231 AT24C32 IIC High Precision RTC Module Clock Timer Memory Module, without BatterySpecification:
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.
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.
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 (L) * 22mm (W) * 14mm (H)
2. Operating voltage :3.3 - 5 .5 V
3. clock chip: high-precision clock chip DS3231
4. Clock Accuracy :0-40 range, the accuracy 2ppm, the error was about 1 minute
5. calendar alarm clock with two
6. chip temperature sensor comes with an accuracy of 3
7. memory chips: AT24C32 (storage capacity 32K)
8. IIC bus interface, the maximum transmission speed of 400KHz (working voltage of 5V)
Note: Don't inclue battery, it only need 0.01 dollars, it's not safty to ship by air mail. So hope you can understand it.
Package Included:
5PCS* DS3231 AT24C32 IIC High Precision RTC Modules
5. Holdding DS3231 AT24C32 IIC Module Precision Real Time Clock Memory Module Arduino/Precise Time Clock Module with a Temperature-compensated Crystal Oscillator
Feature
Operating voltage: 3.3 - 5.5VClock chip: high-precision clock chip DS3231
Memory chips: AT24C32 (storage capacity 32K)
Clock Accuracy: within 0-40 C range, the accuracy 2ppm, the error was about 1 minute per year.
Description
Specification:Size: 38 x 22 x 14mm
Weight: 8g
Temperature accuracy: 3 C
Maximum transmission speed: 400KHz (working voltage of 5V)
Feature:
Low-cost, accurate I2C real-time clock (RTC) module with a temperature-compensated crystal oscillator (TCXO) improving long-term accuracy
Precise temperature sensor, through the I2C interface for access
Rechargeable battery LIR2032, maintaining accurate timekeeping without main power
Automatically adjusted including corrections for leap year
Calendar alarm clock with two programmable square-wave output
Generating seconds, minutes, hours, day, month and year timing till 2100
Cascaded with other IIC device, 24C32 addresses can be shorted A0/A1/A2 modify default address is 0x57
Rechargeable battery LIR2032, preventing the system from power failure
Wiring instructions (with Arduino uno r3 for example):
SCLA5
SDAA4
VCC5V
GNDGND
Package included:
1x DS3231 AT24C32 IIC module
6. DAOKI 5 PCS DIY DS3231 Precision RTC Clock Memory Module for Arduino Raspberry Pi
Feature
NOTE: THIS ITEM COMES WITHOUT BATTERY.Module itself can adapt 3.3V and 5V systems without level conversion.
Within -40 C to +85 C temperature range, timing accuracy is maintained at 5ppm ( 0.432 sec / day).
Device package and function compatible with the DS3231.
Complete clock functions include seconds, minutes, hours, day, date, month and year timing, and provide valid to 2100.
Description
Feature:1. Within -40 C to +85 C temperature range, timing accuracy is maintained at 5ppm ( 0.432 sec / day).
2. Provide battery backup for continuous timing.
3. Low-power.
4. Device package and function compatible with the DS3231.
5. Complete clock functions include seconds, minutes, hours, day, date, month and year timing, and provide valid to 2100.
6. Two calendar alarm.
7. 1Hz and 32.768kHz output.
8. Reset button and button input.
9. High-speed (400kHz) I2C serial bus.
10. +2.3 V to +5.5 V supply voltage.
11. 3C accuracy digital temperature sensor.
12. -40C to +85C operating temperature range.
13. 16-pin SO (300mil) package
Package included:
5 x DS3231 Clock Module
NOTE: THIS ITEM COMES WITHOUT BATTERY.
7. WINGONEER 3Pcs Tiny DS3231 AT24C32 I2C Module Precision Real Time Clock Module For Arduino
Feature
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.
Note: This is not original Arduino product. it only a substitute accessories from WINGONEER
Description
WINGONEER trademark Reg.NO:4747611WINGONEER 3Pcs Tiny DS3231 AT24C32 I2C Module Precision Real Time Clock Module For Arduino
Feature:
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 3C. 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 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 3C
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
Package include:
3x WINGONEER Time Clock Module
8. Anmbest 2PCS DS3231 AT24C32 IIC High Precision Real Time Clock Module 3.3V to 5.5V with battery For Raspberry Pi and Arduino Beats DS1307
Feature
The DS3231 is a low-cost, highly accurate Real Time Clock which can maintain hours, minutes and seconds, as well as, day, month and year information. Also, it has automatic compensation for leap-years and for months with fewer than 31 days.A precision temperature-compensated voltage reference and comparator circuit monitors the status of VCC to detect power failures, to provide a reset output, and to automatically switch to the backup supply when necessary. Additionally, the RST pin is monitored as a pushbutton input for generating a P reset.
The clock operates in either the 24-hour or 12-hour format with an AM/PM indicator. Two programmable time-of-day alarms and a programmable square-wave output are provided. Address and data are transferred serially through an I2C bidirectional bus.
The module can work on either 3.3 or 5 V which makes it suitable for many development platforms or microcontrollers. The battery input is 3V and a typical CR2032 3V battery can power the module and maintain the information for more than a year.
The AT24C32 provides 32,768 bits of serial electrically erasable and programmable read only memory (EEPROM) organized as 4096 words of 8 bits each.
Description
The first question that comes here is why we actually need a separate RTC for our Arduino Project when the Arduino itself has built-in timekeeper. Well the point is that the RTC module runs on a battery and can keep track of the time even if we reprogram the microcontroller or disconnect the main power.The DS3231 is a low-cost, highly accurate Real Time Clock which can maintain hours, minutes and seconds, as well as, day, month and year information. Also, it has automatic compensation for leap-years and for months with fewer than 31 days.
Technical Specifications:
Real-Time Clock Counts Seconds, Minutes, Hours,Date of the Month, Month, Day of the Week, and Year, with Leap-Year Compensation Valid Up to 2100
Accuracy 2ppm from 0C to +40C
Accuracy 3.5ppm from -40C to +85C
Digital Temp Sensor Output: 3C Accuracy
Register for Aging Trim
RST Output/Pushbutton Reset Debounce Input
Two Time-of-Day Alarms
Programmable Square-Wave Output Signal
Simple Serial Interface Connects to Most Microcontrollers
Fast (400kHz) I2C Interface
Battery-Backup Input for Continuous Timekeeping
Low Power Operation Extends Battery-Backup Run Time
Operating Temperature Ranges: Commercial (0C to +70C) and Industrial (-40C to +85C)
Operating voltage :3.3 - 5 .5 V
Clock chip: High-precision clock chip DS3231
Size: 38mm22mm14mm / 1.50 0.870.55(LWH)
Package includes:
2 x DS3231 AT24C32 IIC High Precision Real Time Clock Module
9. SainSmart Tiny RTC I2C DS1307 AT24C32 24C32 memory Real Time Clock Module for Arduino
Feature
24C32 32K I2C EEPROM memory.DS1307 based RTC with CR2032 battery (Battery included).
Fully charged, it can provide the DS1307 timing 1.
Compact design, 27mm * 28mm * 8.4mm.
Leads to the a DS1307 clock pin, to provide the clock signal for the microcontroller.
Description
Any time you want to know what time it is. If I have missed the dating, or if it is the mealtime for my three months child. The RTC module can provides you a real-time clock. You can make the controller to ask the module: hi,buddy, what time it is. At the same time, Donot forget to install a small coin cell which can serve you for more than six mouths.
Feature
* DS1307 I2C real-time clock chip (RTC)24C32 32K I2C EEPROM memory and using CR2032 battery
* DS1307 with backup battery can not read and write.
* Fully charged, it can provide the DS1307 timing 1.
* Compact design, 27mm * 28mm * 8.4mm
* Leads to the a DS1307 clock pin, to provide the clock signal for the microcontroller.Can be cascaded to other I2C devices.
Package list:
* 1x DS1307 module+board
* 1x CR2032 battery
10. WINGONEER 5Pcs Tiny RTC I2C DS1307 AT24C32 Real Time Clock Module For Arduino AVR PIC 51 ARM
Feature
DS1307 I2C real-time clock chip (RTC) 24C32 32K I2C EEPROM memory.The module comes fully assembled. CR2032 Battery include
Designed for Arduino tiny RTC.
Arduino-compatible; Note: This is not original Arduino product.it is only a substitute accessories from WINGONEER
Description
WINGONEER trademark Reg.NO:4747611WINGONEER 5Pcs Tiny RTC I2C DS1307 AT24C32 Real Time Clock Module For Arduino AVR PIC 51 ARM
Feature:
DS1307 I2C real-time clock chip (RTC) 24C32 32K I2C EEPROM memory.
The module comes fully assembled. CR2032 Battery include
DS1307 clock pin to the outside.
Designed for Arduino tiny RTC.
The DS1307 is accessed via the I2C protocol.
Two wire I2C interface.
Hour : minutes : seconds AM/PM.
Day month, date - year.
Accurate calendar up to year 2100.
1Hz output pin.
56 Bytes of non-volatile memory available to user.
Size: 2.8cm x 2.7cm.
Package Included:
5x WINGONEER DS1307 Module