DS1302 REAL-TIME CLOCK MODULE / WITH BATTERY CR2032 (2 pcs)

The DS1302 trickle-charge timekeeping chip contains a real-time clock/calendar and 31 bytes of static RAM. It communicates with a microprocessor via a simple serial interface. The real-time clock/calendar provides seconds, minutes, hours, day, date, month, and year information. The end of the month date is automatically adjusted for months with fewer than 31 days, including corrections for leap year. The clock operates in either the 24-hour or 12-hour format with an AM/PM indicator.
Features

manages all timekeeping functions: real-time clock counts seconds, minutes, hours, date of the month, month, day of the week, and year with leap year
31 x 8 battery-backed general-purpose RAM
simple serial port interfaces to most microcontrollers: simple 3-wire interface
TTL compatible: VCC = 5 V
single-byte or multiple-byte (burst mode) data transfer for read or write of clock or RAM data
low power operation extends battery backup run time: 2.0 V to 5.5 V full operation
uses less than 300 nA at 2.0 V
temperature range: 0°C to +70°C

BLUETOOTH HC-05 TRANSMISSION MODULE

This module allows you to integrate a microcontroller into a Bluetooth network.
Specifications

frequency: 2.45 GHz
asynchronous speed: max. 2.1 Mbps
security: authentication
profile: Bluetooth Serial Port
power supply: +3.3 VDC
working temperature: max. 60°C

ARDUINO COMPATIBLE SOIL MOISTURE SENSOR + WATER LEVEL SENSOR MODULE

This package includes a water level sensor and a soil moisture sensor.
If the boards have water covering the sensor parts, an analogue value will be available at the SIG connection.
Specifications

voltage: 5 VDC
dimensions: 65 x 20 mm
weight: 5 g

SD CARD LOGGING SHIELD FOR ARDUINO (2 pcs)

Seamlessly integrate data logging into your Arduino projects with this MicroSD Card Logging Shield! Simple to assemble and customize for all your data-logging needs.
Thanks to the SPI protocol, users can effortlessly access both MicroSD and MicroSDHC cards. With 4 x M2 holes for smooth installation and an input voltage of 4.5 V - 5.5 V, this shield is designed for ease of use and efficiency.

+ Versatile compatibility: The shield supports both MicroSD and MicroSDHC cards, offering users flexibility in their choice of storage media.
+ Easy Installation: With the 4 x M2 holes, mounting the shield onto your project is a breeze.
+ Efficient data transfer: Using the SPI protocol, the shield ensures a fast and efficient transfer of data to the MicroSD card.
+ Made in Belgium : Whadda is a unique brand from Belgiums Velleman Group that offers DIY projects for hobbyists or makers who want to immerse themselves in electronics, programming and mechanics.
+ STEM project: Develop and improve your STEM skills and acquire the knowledge, skills and experience needed to face the technological challenges of the future with this educational kit. This educational kit will trigger a number of processes such as problem-solving, investigative and creative thinking.

Technical data
Specifications
input Voltage Rating VDC: 4.5 V - 5.5 V
Protocol: SPI
Required Library: SD.h
compatible:
MicroSD Card: <= 2 Gb
MicroSDHC Card:<= 32 Gb

Operational properties:
Coding skill level: 1
Electronics skill level: 1

Product basic info:
Colour unit: White
Weight unit: 23 g

CAPACITIVE TOUCH SENSOR SWITCH

A capacitive sensor is a touch sensor that requires little or no force to activate. Detects body capacitive touch, outputting analogue voltage.
Specifications

connection: 3 pins, GND - VCC - Signal
voltage: 3 to 5 VDC
dimensions: 30 x 16 x 6 mm
weight: 5 g

ULTRASONIC SENSOR
The ultrasonic distance sensor is suitable for measuring distances up to a maximum of 5.5 meters.

+ Highly accurate measurements: This ultrasonic distance sensor provides precise measurements with a resolution of only 0.3 cm. This allows you to measure the distance to objects with great precision.
+ Large detection range : With an impressive detection range of 3 to 550 cm, this sensor is ideal for various applications, from robot navigation to security systems.
+ Versatile applications: This module is versatile and suitable for various applications, from automation, home automation and robotics to environmental and industrial monitoring.
+ STEM project: Develop and improve your STEM skills and acquire the knowledge, skills and experience needed to face the technological challenges of the future with this educational kit. This educational kit will trigger a number of processes such as problem-solving, investigative and creative thinking.
+ Made in Belgium: Whadda is a unique brand from Belgiums Velleman Group that offers DIY projects for hobbyists or makers who want to immerse themselves in electronics, programming and mechanics.
- Project tip: Add this sensor to any robot project to enable the robot to smoothly avoid obstacles.

Technical data
Specifications
voltage: 3.3 to 5 VDC
sound frequency: 40 KHz
measurement resolution: 0.3 cm
measurement angle: 15
supply current: 50 to 100 mA
trigger pin format: 10 uS pulse
connector: 5 pin male
detection distance: 3-550 cm
working temperature: -10C to +60C

Operational properties
Instruction manual languages English
Coding skill level: 3

Product basic info:
Colour unit: White
Depth unit: 3.8 cm
Height unit: 15.5 cm
Width unit: 7.8 cm
Weight unit:28 g

ARDUINO COMPATIBLE RGB LED MODULE (2 pcs)

RGB LED module with on-board current limiting resistors.
Specifications

voltage: 5 VDC
connection : 4 pin male header
pins: GND, RED, GREEN, BLUE
dimensions: 24 x 16 x 16 mm
weight: 2 g

ARDUINO COMPATIBLE MINI MAGNETIC REED MODULE (2 pcs)

A Reed contact switch is a normally open contact which closes in the presence of a magnetic field. This modules contains a 10 Kohm pull-up resistor.
Specifications

voltage: 5 VDC
connection: 3 pins, +(middle pin), ground and DO (data out)
dimensions: 25 x 15 mm
weight: 2 g

ARDUINO COMPATIBLE MICROPHONE SOUND SENSOR MODULE

High sensitivity sound detection module with 2 outputs.
AO - analog output, real-time output voltage signal of the microphone.
DO - the digital output depends on the sound intensity and the threshold that has been set.
Specifications

voltage: 3.3 to 5 VDC
outputs: one analogue + one digital output
fixation: 1 mounting screw hole 3 mm
2 indicator LEDs: 1 power indicator + 1 comparator output indicator
frequency response: 50 Hz - 20 KHz
impedance: 2.2 K Ohm
sensitivity: 48 - 66 dB
operating temperature: -40 to +85°C
dimensions: 44 x 15 x 10 mm
weight: 4 g

ARDUINO COMPATIBLE TACTILE SWITCH SENSOR MODULE (2 pcs)

This module contains a push button and a 10 K pull-up resistor.
Specifications

voltage: 5 VDC
connection: 3 pins, +(middle pin), ground and DO (data out)
dimensions: 25 x 15 mm
weight: 2 g

DHT11 DIGITAL TEMPERATURE HUMIDITY SENSOR MODULE FOR ARDUINO

The DHT11 temperature and humidity sensor features a calibrated digital signal output with the temperature and humidity sensor complex. Its technology ensures the high reliability and excellent long-term stability. A high-performance 8-bit micro-controller is connected. This sensor includes a resistive element and a sense of wet NTC temperature measuring devices. It has excellent quality, fast response, anti-interference ability and high cost performance advantages.
Specifications

voltage: 5 VDC
temperature range: 0 - 50 °C , error of +/- 2 °C
humidity: 20 - 90% RH +/- 5% RH error
interface: digital
dimensions: 39 x 23 x 10 mm

ARDUINO COMPATIBLE VIBRATION / SHOCK SWITCH MODULE (2 pcs)

This module contains a vibration switch and a 10 K pull-up resistor.
Specifications

voltage: 5 VDC
connection: 3 pins, +(middle pin), ground and DO (data out)
dimensions: 25 x 15 mm
weight: 2 g

ARDUINO COMPATIBLE HALL (HOLZER) MAGNETIC SWITCH MODULE (2 pcs)

The device includes an on-chip Hall voltage generator for magnetic sensing, an amplifier that amplifies the Hall voltage, a Schmitt trigger to provide switching hysteresis for noise rejection, and an open-collector output.
Specifications

voltage: 5 VDC
connection: 3 pins, +(middle pin), ground and S (data out)
output (S): Schmitt Trigger, Active Low
activation: 30 Gauss
deactivation: 10 Gauss
LED indicator: ON when activated
dimensions: 25 x 15 mm
weight: 2 g

PIR MOTION SENSOR FOR ARDUINO

PIR sensors allow to sense motion, almost always used to detect whether a human has moved in or out of the sensors range.
Specifications

voltage: 5 VDC
connection: 3 pin: GND, VCC and OUT
adjustments: sensitivity and delay (by trimmer)
delay time: 0.3 to 18 s
output level: high = 3 V, Low = 0 V
max. sensor distance: 7 m
operating temperature: -15 to +70°C
detection angle : 120 °
dimensions: 32 x 24 x 25 mm

XY JOYSTICK MODULE (2 pcs)

This Joystick module provides X and Y axis control for your microcontroller projects.
It also includes a push down microswitch.
Specifications

voltage: 3 to 5 VDC
contains : 2 trimmers 10K + 1 switch
dimensions: 47 x 25 x 32 mm
weight: 15 g

ARDUINO COMPATIBLE INFRARED TRANSMITTER MODULE (2 pcs)

This module can be used to send data by using infrared light. Commonly used in remote controls.
Specifications

max. current: 20 mA
connection: 3 pins, only GND (-) and S is used
weight: 2 g
dimensions: 35 x 15 x 8 mm
note: there is no current limiting resistor on the module

ARDUINO COMPATIBLE 1838 IR INFRARED 37.9 kHz RECEIVER (2 pcs)

The VMA317 (1838) is a miniaturized infrared receiver for remote control and other applications requiring improved ambient light rejection.
Features

photo detector and preamplifier in one package
internal filter for PCM frequency
inner shield, good anti-interference ability
high immunity against ambient light
improved shielding against electric field disturbance
3.0 V or 5.0 V supply voltage, low power consumption
TTL and CMOS compatibility

Specifications

supply voltage: 3 to 5 VDC
max. supply current: 1.5 mA
B.P.F. center frequency: 37.9 KHz
dimensions: 28 x 15 x 10 mm

ARDUINO COMPATIBLE 3 COLOUR RGB SMD LED MODULE (2 pcs)

This module contains a 5050 RGB LED.
Connect this module to the Arduino PWM outputs to generate a full range of colours.
Warning! This module does not include current limiting resistors! Damage to the LEDs will occur if connected directly to 5 V.
Specifications

power dissipation: R 60mW, G 95mW, B 95mW
peak forward current (0.1 ms pulse width): 100 mA for each colour
continuous forward current: 25 mA for each LED
max. reverse voltage: 5 V
operating temperature: -40 °C to 80 °C
dimensions: 28 x 15 x 5 mm
common: cathode (-)
attention: current has to be limited by using resistors

ARDUINO COMPATIBLE ACTIVE BUZZER MODULE (2 pcs)

Specifications

operating voltage: 5 VDC
buzzer frequency: 1.5 to 2.5 KHz
connection : 3 pin, (-) and (S). (+) is not used
dimensions: 25 x 15 x 10 mm

ARDUINO COMPATIBLE ANALOGUE TEMPERATURE SENSOR MODULE (2 pcs)

A thermistor is a type of resistor where the resistance is dependent on temperature, more so than in standard resistors.
Specifications

NTC type: NTC-MF52 3950
temperature range: -55 °C to 125 °C
accuracy: +/- 0.5°C
pull-up resistor: provided, 10 KOhm
connection: 3 pin, (+) 5V , (-) ground, (S) analogue output
dimensions: 20 x 15 x 5 mm