ADAFRUIT DEBO RTC UHR2 - Developer Boards - Precision Real-Time Clock, DS3231
35.74 EUR
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Precision Real-Time Clock DS3231
Delivery Cost: 9.95 EUR
Availability: in stock
Delivery Time: 4-5 business days
Condition: new
Precision Real-Time Clock DS3231
supply voltage: 3.3 V- Dimensions: 23 x 17.6 x 7.2 mm
Delivery Cost: 9.95 EUR
Availability: in stock
Delivery Time: 4-5 business days
Condition: new
Comparison of Similar Products
- compatible with Arduino (or a compatible board such as Dasduino)
- extremely low power consumption
- integrated battery holder
- alarm function and interrupt pin
- uninterrupted time tracking even in the event of a power failure
The RTC (Real Time Clock) is characterized by its high accuracy, which makes it particularly suitable for applications where long-term time tracking is required. It is compatible with Arduino (or a compatible board such as Dasduino) and can be operated with extremely low power consumption. Thanks to the integrated battery holder, time tracking is maintained even in the event of a power failure. The alarm function and interrupt pin allow a microcontroller to go into sleep mode and only be reactivated when an alarm is triggered by the RTC.
The built-in battery holder (battery not included) ensures that real-time tracking is not affected even in the event of a power failure.
Technical data
- Communication: I2C
- RTC IC: PCF85063A
- Voltage: 0.9 V ... 5,5 V
- easyC/Qwiic compatibility
- Dimensions: 38 x 22 mm
The RTC offers a precise and reliable solution for long-term time tracking in applications that require accurate time recording. It is compatible with common microcontroller boards and ensures efficient and continuous time tracking thanks to its low power consumption and alarm function.
easyC
easyC is a robust connection system that optimizes the connection using JST-SH compatible connectors (JST 4-pin) of microcontrollers, sensors and actuators. It offers solderless connections, serial connections of multiple devices (daisy-chaining), error-free design, parallel connection, universal compatibility and intermediate compatibility with Qwiic (Sparkfun connection system), simplifying prototype development. Further information on easyC can be found under ''Data sheets''.
External links
https://github.com/SolderedElectronics/Soldered-PCF85063A-RTC-Module-Arduino-Library
The DS1302 chip uses a simple serial interface and sample code is available for Arduino, Raspberry Pi and many others.
The real time clock counts seconds, minutes, hours, the date of the month, the month, the day of the week and the year with leap year compensation valid until 2100.
• serial inputs and outputs for minimum pin count
• 2 V to 5.5 V full operation
• requires less than 300 nA at 2 V
• single byte or multi-byte data transfer for reading or writing clock or RAM data
Note
• battery not included (battery see accessories)
- supply voltage: 2.7 - 5.5 V
- Frequency range: 20 Hz - 20 KHz
- automatic gain, selectable
- Dimensions: 26 x 14 mm
- linkable design
- fast protocol with 800 KHz
- specially for portable applications
- diameter: 12.5 mm
Instead of struggling with two multimeters, you can simply use the handy INA219B chip on this board to measure both voltage and DC current consumption via the I2C interface.
- Current measurement resistance: 0.1 Ohm / 1% / 2 W
- Target voltage: up to 26 V
- Current measurement: up to 3.2 A
- Resolution: 0.8 mA
- Dimensions: 20 x 23 mm
Solder your chip to either side and you can get started with any experiment system.
- screen size: 1.3'' (3.3 cm)
- number of pixels: 128×64
- colour depth: monochrome (white)
- pixel pitch: 0.23 x 0.23 mm
- pixel size: 0.21 x 0.21 mm
- Brightness: 100 cd/m2 at 12 V
- Dimensions: 35 x 35 x 5 mm
- humidity measurement with ±3% accuracy
- air pressure measurement with ±1 hPa absolute accuracy
- temperature measurement with ±1.0°C accuracy
- Dimensions: 18 x 19 x 3 mm
- 4-channel
- I2C-safe
- simple use with Arduino or another microcontroller
- installed tilt / position detection
- Wide range of use from 2 to 8 g
- very precise with built-in 14-bit ADC
- Dimensions: 21 x 18 x 2 mm
- pre-assembled
- Input voltage: 5 V via microUSB
- 100 mA charging current, adjustable to 500 mA by re-soldering
- with JST cable
- Dimensions: 19 x 2 x 21 mm
Please note:
Battery not included in scope of delivery!
- 6 address selection pins
- adjustable frequency PWM up to approx. 1.6 kHz
- 12 bit resolution for each output
- configurable push-pull or open-drain output
- Dimensions: 54 x 70 x 3 mm
- 16 individually addressable RGBs
- voltage range: 4 - 7 V
- outside diameter: 36.8 mm
- inside diameter: 23.3 mm
- pre-assembled
- input voltage: up to 5 V via miniUSB
- 500 mA Charging current, adjustable to 100 to 1000 mA by re-soldering
- with JST cable
The last three digits of the I2C address can be set via jumpers on the board, which makes it possible to use several modules at the same time.
Via an additional jumper the write protection of the module can be activated, whereby the data can only be read.
Specifications
• Supply voltage: 1,8 ... 5,5 V
• Model AT24C256
• logic level: VCC
• Interface: I2C (@1010XXX, 0x50 - 0x57)
• Memory size: 32 KB
• clock frequency: up to 1 MHz
• write cycles: up to 1.000.000
• exchangeable memory chip
- detection accuracy range: ± 2°C
- temperature range: -250 to +750°C
- supply voltage: 3 - 18 V
- supplied with 2-pin terminal
- only thermocouples of type K
- Dimensions: 20 x 16 x 2 mm
- Sensor for Silicon Labs
- measures relative humidity with ±3 %
- temperature accuracy: ± 0.4°C
- temperature range: -10 to +85°C
- Dimensions: 15.3 x 17.8 x 3 mm
- Charging with a 5-6 VDC, USB or 6 V solar panel
- automatic charge current detection for highly efficient use of solar panels with any wattage
- three color signal lamps-LEDs
- Battery warning display with LED output
- Set for maximum charging rates of 500 mA
- temperature monitoring
- absolute orientation
- angular velocity vector
- acceleration vector
- magnetic field strength vector
- linear acceleration vector
- gravity vector
- temperature
- uses the I2C address 0x28 (default) or 0x29
- Dimensions: 20 x 4 x 27 mm
- I2C interface
- 12 bit DAC-W
- Power supply: 3.3 or 5 V
- Output voltage: Rail-to-rail
For further information please visit
https://learn.adafruit.com/mcp4725-12-bit-dac-tutorial/download
- 4 busbars with positive and negative markings
- 15 rows of double 5-hole rows
- Dimensions: 55 x 44 mm
- 4 busbars with positive and negative markings
- 15 rows of double 5-hole rows
- Dimensions: 44 x 55 mm
It is sensitive to liquids, but is also suitable for gases. The warm-up time of the sensor is short, which increases its efficiency. The breakout board enables the processing of digital (DO) and analog (AO) signals. By setting the limits using the potentiometer, a digital output can be generated, while the analog output reflects the gas intensity in its environment. Both signals provide information for the detection of ammonia with an Arduino (or a compatible board such as Dasduino).
Technical specifications
- voltage: 5 V
- digital output: 0 V / 5 V
- analog output: 0 .. 5 V
- LM393 comparator
- Dimensions: 38 x 22 mm
External links
https://github.com/SolderedElectronics/Ammonia-sensor-MQ137-breakout-hardware-design
Technical properties
• Input voltage: 4.75 ... 23 V DC
• Output voltage: 1 ... 17 V DC (adjustable)
• Max. output current (permanent): 1.8 A
• Max. output current (short time): 3 A
• Conversion efficiency max. 96
• switching frequency 340 KHz
• Operating temperature: -40 ... +85 °C
• Dimensions (LxWxH): 18 x 12 x 4.5 mm
This FeatherWing will make it real easy to add datalogging to any of our existing Feathers. You get both an I2C real time clock (PCF8523) with 32KHz crystal and battery backup, and a microSD socket that connects to the SPI port pins (+ extra pin for CS). A CR1220 coin cell is required to use the RTC battery-backup capabilities!
- 50.8 x 22.9 x 1.6 mm
It also has an indicator light that illuminates when the voltage signal changes. It has a 3-pin connector for easy connection to the Arduino Sensor Expansion Board.
Specifications
• operating voltage: 5 V
• 3-pin jumper
• dimensions (L x W x H): 24 x 21 x 10 mm
Technical data
- Resolution: 1024 x 600
- supported devices: Raspberry Pi, Banana Pi, Banana Pro, Windows PCs
- Connections: HDMI, Micro-USB
- Touch Controller: GT811
- Touch Panel Type: Capacitive (5 Multi-Touch)
- Backlight: LED
- Display size: 154.21 x 85.92 (mm)
Special functions
- Can also be used as a standalone HDMI display
reference
- suitable housing see accessories
- Digital output
- 50 Hz to 15 kHz
- I2S Interface
- • 1,6 ... 3,6 V Operating voltage
- SPH0645LM4H
Specifications
- compatible with Raspberry Pi, Arduino, etc.
- Delay compensation for directional detection
- automatic adjustment for waking and snoozing with ODR
- dynamic measuring range ± 2g, ± 4g, ± 8g
- 1.95 - 3.6 V Supply voltage
- 8 bit / 12 bit digital output
Note: for further technical data see data sheet
The digital and analog outputs are located on the vias, marked DO and AO. The digital output can be obtained by setting a threshold value with a potentiometer. The analog output depends on the intensity of the gases.
Technical data
- Gas detection: carbon monoxide, methane, propane, flammable gases
- Logic voltage: 5 V
- Operating voltage: 5 V
- Operating temperature: -10°C to 50°C (14 to 122 °F)
- Gas detection range: 10-1000 ppm CO, 100-10000 ppm combustible gases
- Preheating time: 48 hours
- Mounting holes: 2
- Dimensions: 22 x 38 mm
Instructions for use
- the sensor requires 48 hours to preheat to the optimum operating temperature. If it detects gas, the LED lights up. If no gases are present, it remains switched off.
- Highly corrosive gases considerably weaken the sensor.
External links
https://github.com/SolderedElectronics/CO--flammable-gasses-sensor-MQ9-breakout-hardware-design
A short warm-up time is required to ensure optimum performance. The breakout board supports digital (DO) and analog (AO) signals. By setting the limits using the potentiometer, a digital output can be generated, while the analog output reflects the gas intensity around the sensor. Both signals provide information about the detected gases. This behavior is typical for sensors operated with Arduino (or a compatible board such as Dasduino).
Technical data
- max. VOC (toluene, acetone, alcohol, hydrogen) reception
- voltage: 5 V
- digital output: 0 V / 5 V
- analog output: 0 .. 5 V
- LM393 comparator
- Dimensions: 38 x 22 mm
It offers fast response times and low susceptibility to interference, making it ideal for applications such as ambient light monitoring, optical encoders and safety solutions.
Its design allows for easy integration into space-constrained systems, and it operates reliably at temperatures from -25°C to +70°C - an ideal choice for precise light detection.
Technical specifications
- Sensor type: Phototransistor / analog brightness output
- Chipset: HLPT550B5H5
- Supply voltage: 1.8 - 5 V
- Output voltage: low/equal to supply voltage
- Fixed known resistance: 10 kOhm
- Operating temperature: -25 to 70 °C
- Dimensions (L×W×H): 28 × 15 × 7 mm
- Compatibility: Arduino, Raspberry Pi, Raspberry Pi Pico, micro:bit and more
- any number of links
- each LED has an 18 mA constant current driver
- each LED can be addressed because the driver chip is in the LED
- no external choke resistors are required
A short warm-up time is required for its optimal performance. The sensor's breakout board provides both digital (DO) and analog (AO) signal outputs. The digital outputs can be adjusted by configuring the limits using a potentiometer, while the analog output reflects the gas intensity around the sensor. The use of an Arduino (or a compatible board such as Dasduino) allows the sensor to be integrated into various applications.
Technical specifications
- Detects: Ethanol (C2H5OH)
- Voltage: 5 V
- digital output: 0 V / 5 V
- analog output: 0 .. 5 V
- LM393 comparator
- Dimensions: 38 x 22 mm
external links
https://github.com/SolderedElectronics/Alcohol--Ethanol-sensor-MQ3-breakout-hardware-design
Features
- Chipset: VS1003
- Precision: 16-Bit
- Operating voltage: 5 V DC
- Interface: UART, SPI
- Recording format: IMA ADPCM
Supported formats
- MP3
- Mp3+V
- WMA
- WAV
- MIDI
- SP-MIDI
