All Products

SKU: AF-255

THIS IS THE LATEST VERSION 2.1The ChronoDot RTC is an extremely accurate real time clock module, based on the DS3231 temperature compensated RTC (TCXO). It includes a CR1632 battery, which should last at least 8 years if the I2C interface is only used while the device has 5V power available. No e...

SKU: DF-DFR0998

This real-time clock (RTC) module uses the SD3031 chip, which has an integrated crystal oscillator and temperature compensator. This provides high-precision timing and stability. At a temperature of 25 °C, the accuracy is maintained at ±3.8ppm (±0.32832 seconds/day).The SD3031 can be powered by b...

SKU: DF-DFR0641

This precise RTC adopts DS3231M chip, which integrates MEMS resonator and temperature compensator. Compared to quartz crystal clock, the real-time clock reduces the risk of mechanical failure. Therefore, it can be used in a highly vibrating environment. Within -45°C to +85°C, the accuracy of the ...

SKU: SF-DEV-21326 · MPN: DEV-21326

This compact MicroMod processor board adds an STM32F405 to a compatible MicroMod Carrier Board, giving your project an ARM® Cortex®-M4 32-bit RISC core in a small, swappable M.2 module.The bevelled edge connector keys into the MicroMod M.2 socket and is secured with the screw supplied with MicroM...

SKU: DF-DFR0469

A high-precision I2C real-time clock (RTC) module from DFRobot's Gravity series, based on the SD2405AL chip. It features an internal rechargeable battery that keeps time for 5–8 years without external power, making it ideal for data logging, alarm clocks, and any project that needs reliable timek...

SKU: AF-2214

A 12.000MHz quartz crystal in a standard HC49/US short-style package with two 20pF load capacitors included. The crystal has 30PPM tolerance and 50PPM stability, making it precise enough for USB timing, long-term timekeeping, and RF/PLL/VCO applications. The breadboard-friendly package works with...

SKU: DF-DFR0819

This real-time clock module (RTC) uses the DS3231 chip that integrates a crystal resonator and a temperature compensator, which improves the long-term accuracy of the module. In the range of -40°C to +85°C, the accuracy of DS3231 remains at ±3.5ppm (±0.3024 seconds/day).The device incorporates a ...

SKU: WS-30737 · MPN: 30737

RP2350 1.43inch AMOLED Development BoardElevate your project's visual experience with the RP2350 1.43inch AMOLED Development Board, the ultimate blend of performance and stunning display. Designed for developers, hobbyists, and tech enthusiasts, this board offers the perfect canvas for your imagi...

SKU: DF-DFR0821

A high-precision real-time clock (RTC) breakout board based on the DS3232 chip, featuring an integrated crystal resonator and temperature compensator. The DS3232 maintains accuracy of ±3.5ppm (±0.3 seconds/day) across the full operating range of -40°C to +85°C, making it ideal for applications th...

SKU: SF-BOB-14558

Get with the times, already! This SparkFun Real Time Clock (RTC) Module is a Qwiic-enabled breakout board for the RV-1805 chipset. The RTC is ultra-low power (running at only about 22nA in its lowest power setting) so it can use a supercapacitor for backup power instead of a normal battery. ...

SKU: EC-ASC7503RTC

The RTC Data Logger Shield adds SD card storage and a real-time clock to your Arduino, making it straightforward to log timestamped sensor data. It supports SD, SDHC, and microSD TF cards via an onboard toggle switch to select the card type. The shield is compatible with 3.3V and 5V logic levels...

SKU: KI-5636

This RTC & Klimate board is a Real Time Clock (RTC) and environmental sensor (BME280) interface for the BBC microbit. The environmental sensor will give the ability to measure temperature, barometric pressure and humidity. The RTC will give the ability to read current time and date. The boa...

SKU: EF-EF05034 · MPN: EF05034

The RTC clock module provides us with accurate real-time time and an accurate time reference for the electronic system. It is able to count the year, month, day, hour, minute, and second.PlanetX RTC

SKU: AF-5703

The Adafruit PiCowbell Adalogger is a Pico-sized add-on board that sockets underneath your Raspberry Pi Pico or Pico W, adding a microSD card slot, real-time clock with battery backup, and a STEMMA QT connector for I2C sensors — everything you need for data logging projects. The PCF8523 RTC keep...

SKU: AF-3295

Keep track of time even when your project loses power or gets reprogrammed. The PCF8523 Real Time Clock breakout is a battery-backed RTC that communicates over I2C and works with both 3.3 V and 5 V power and logic. Perfect for datalogging, clock building, time stamping, timers, and alarms. Works...

SKU: AF-5189

Keep track of time even when your project loses power or gets reprogrammed. This updated PCF8523 Real Time Clock breakout features STEMMA QT / Qwiic connectors for solderless I2C wiring, plus traditional breadboard headers. It works with both 3.3 V and 5 V power and logic, making it compatible wi...

SKU: AF-4282

The Adafruit PiRTC Precise DS3231 is a high-accuracy, battery-backed real-time clock that plugs directly onto your Raspberry Pi's GPIO header. Built around a genuine Maxim DS3231 with an integrated temperature-compensated crystal oscillator (TCXO), it delivers exceptional timekeeping accuracy — f...

SKU: SF-BOB-12708

This is the SparkFun Real Time Clock (RTC) Module, this little breakout that uses the DS1307 to keep track of the current year, month, day as well as the current time. The module comes fully assembled and includes a small CR1225 Lithium coin cell battery that will run the RTC for a minimum of 9 y...

SKU: AF-3028

A Feather board without ambition is a Feather board without FeatherWings! This is the DS3231 Precision RTC FeatherWing: it adds an extremely accurate I2C-integrated Real Time Clock (RTC) with a Temperature Compensated Crystal Oscillator (TCXO)  to any Feather main board. This RTC is the m...

SKU: SF-COM-10079

RTC stands for real time clock folks. The DS3234 is a low-cost, extremely accurate SPI bus RTC with an integrated temperature compensated crystal oscillator (TCXO) and crystal.