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1. Makerfire #ad
Makerfire Raspberry Pi RTC Module Real Time Clock Module DS1307 Chip with Coin Battery #adMakerfire #ad
- There is a maxim ds1307 and cr1220 button cell on the board to keep the real time for a long time after the Raspberry Pi has it’s power off. Set a serial port, ttl convenient way online debugging; RTC chip: DS1307; Battery: CR1220; Work Voltage: 5V.
The rtc module is specifically designed for raspberry pi. There is a maxim ds1307 and cr1220 button cell on the board to keep the real time for a long time after the Raspberry Pi has it’s power down.
It communicated with raspberry pi through i2c bus. Faq--question: why does my rtc module running a wrong time when i reboot my Pi? Answer: Please do remember to disable the "fake hwclock" which interferes with the 'real' hwclock as following commands: sudo apt-get -y remove fake-hwclock sudo update-rc.
D -f fake-hwclock remove. In order to offering a convenient way to debug, Rxd, 3. 3v, there are five pin has been setup which are 5v, Txd on board.
2. Wal front #ad
4pcs DS3231 High Precision RTC Clock Memory Module Raspberry Pi #adWal front #ad
- Accuracy of ±3℃ digital temperature sensor. Low power consumption: rtc clock module has the characteristic of low power consumption, -40 °C to +85 °C temperature range.
Package includes: ds3231 precision RTC Module Memory Module x 1 battery are included. High precision: timing accuracy kept at ± 5ppm ± 0432 sec / day.
Function: complete clock calendar functions include seconds, month and year timing, minutes, hours, date, day, provide valid until the year 2100 leap year compensation. Convenient to use: the module itself can be adapted to 3. 3 v and 5 v system, no level conversion, it is super convenient.
|Brand||Wal front #ad|
|Manufacturer||Wal front #ad|
|Part Number||Wal front4ygwk91835|
3. Wishiot #ad
5PCS DS3231 Real Time Clock Module RTC Sensor High Precision AT24C32 IIC Timer Alarm Clock for Arduino Raspberry Pi #adWishiot #ad
- About battery type: battery is not included, you can use CR2032 or LIR2032 battery. An interesting feature of ds3231 rtc ic is that it has integrated crystal oscillator and temperature sensor and hence you don’t have to connect an external crystal.
Feature: the ds3231 is an rtc ic developed by maxim integrated.
It is a low cost, extremely accurate RTC IC with communication over I2C Interface. Voltage: 3. 3-5v, memory chips: aT24C32 storage capacity 32K. Clock chip: high-precision clock chip ds3231there are 3 different chips for this clock module, DS3231SN and DS3231M, DS3231N, we send it by randomly.
4. DAOKI #ad
DAOKI 5 PCS DIY DS3231 Precision RTC Clock Memory Module for Arduino Raspberry Pi #adDAOKI #ad
- Device package and function compatible with the DS3231. Note: this item comes without batteRY. Module itself can adapt 3. 3v and 5v systems without level conversion.
Complete clock functions include seconds, minutes, month and year timing, date, hours, day, and provide valid to 2100. Within -40 ° c to +85 ° c temperature range, timing accuracy is maintained at ± 5ppm ± 0432 sec / day.
5. Geekstory #ad
Geekstory 5PCS DS3231 Real Time Clock Module RTC Sensor High Precision AT24C32 IIC Timer Alarm Clock for Arduino Raspberry Pi #adGeekstory #ad
- It is a low cost, extremely accurate RTC IC with communication over I2C Interface. The product documentation link cannot be displayed. Voltage: 3. 3-5v, memory chips: aT24C32 storage capacity 32K.
Feature: the ds3231 is an rtc ic developed by maxim integrated. About battery type: battery is not included, you can use CR2032 or LIR2032 battery. Clock chip: high-precision clock chip ds3231there are 3 different chips for this clock module, DS3231SN and DS3231M, DS3231N, we send it by randomly.
If you need technical documentation, in the new page, please click “Geekstory”you can find "Sold by Geekstory" under Buy Now button, click “Ask a question” to email us. An interesting feature of ds3231 rtc ic is that it has integrated crystal oscillator and temperature sensor and hence you don’t have to connect an external crystal.
6. Magic&shell #ad
Magic&shell 2PCS DS3231 AT24C32 IIC High Precision Real Time Clock Module RTC Module for Arduino Raspberry Pi #adMagic&shell #ad
- Operation voltage: 3. 3-5. 5v. Provides two settable calendar alarm clocks and a settable square wave output. Address and data are transmitted serially through the I2C bidirectional bus.
The rtc saves second, month, date, and year information. For months with less than 31 days, the month end date is automatically adjusted, hour, minute, week, including leap year corrections. The working format of the clock can be 24 hours or 12 hours with /AM/PM indication.
Size: 38 x 22 x 14mm/1. 5x087x055inchesLxWxH. Package Including:2PCS. Precise, provide reset output, detect power failures, temperature-compensated voltage reference and comparator circuits are used to monitor VCC status, and automatically switch to backup power when necessary. Clock chip :ds3231. Memory chips: at24C32 storage capacity 32K.
7. RasClock #ad
RasClock 4.0 RTC for Raspberry Pi #adRasClock #ad
- Integrated crystal that compensates for temperature and age. Raspbian wheezy and jessie already support the RasClock setting changes required to enable RasClock. Easy to configure via instructions at RasClock site. Very accurate timekeeping typically ±3ppm or
8. Adafruit #ad
Mini Kit, Adafruit RGB Matrix HAT + RTC for Raspberry Pi #adAdafruit #ad
- Not included: rgb led matrix sold separately, Raspberry Pi, 5V power supply, or coin cell battery for Real Time Clock. Simple design - plug in power, plug in IDC cable, and run Adafruit's Python code. Real time clock not needed for unit to function.
Included: rgb matrix hat controller. Works with adafruit 16x32, 32x32 or 32x64 rgb led matrices with HUB75 connections. Onboard level shifters to convert the RasPi's 3. 3v to 5. 0v logic for clean matrix driving. You can even chain multiple matrices together for a longer display.
9. WINGONEER #ad
WINGONEER 5PCS DS3231 Precision RTC Clock Module Memory Module for Arduino for Raspberry Pi #adWINGONEER #ad
- Precision of digital temperature sensor is Precision of digital temperature sensor is ±3℃. Reset output and anti-shake inpu. High speed 400 kHZI2C serial bus. High precision ds3231 rTC Real Time Clock Module. Two calendar clock.