Sensors & Transducers

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Sale VELLEMAN 1 Amp Lithium Battery Charging Board 2pk

VELLEMAN 1 Amp Lithium Battery Charging Board 2pk, VMA321

Regular Price: $4.15

Your Price: $2.99

input voltage: 4.5 to 5.5 VDC (by on-board USB connector) charging current: 1 A adjustable charge accuracy: 1.5 % Full Charge Voltage: 4.2 V Charge indicator: green = fully charged, red = charging working temperature: 14 °F to +176°F (-10°C to +80°C) weight: 0.35 oz. (10 g) dimensions : 0.98" x 0.75" x 0.39" (25 x 19 x 10 mm)
Sale VELLEMAN Sound Sensor Module

VELLEMAN Sound Sensor Module, VMA309

Regular Price: $4.20

Your Price: $1.99

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 size: 44 x 15 x 10 mm weight: 4 g

VELLEMAN HC-SR05 Ultrasonic Sensor Module, VMA306

$4.05
Voltage: 4.5 to 5.5 VDC Sound frequency: 40 KHz measurement resolution: 0.3 cm measurement angle: 15 ° supply current: 10 to 40 mA Trigger Pin format: 10 uS pulse connector: 5 pin male detection distance: 2 to 450 cm dimensions: 45 x 20 x 13 mm

VELLEMAN Capacitive Touch Sensor Switch, VMA305

$4.30
connection: 3 pins, GND - VCC - Signal voltage: 3 to 5 VDC dimensions: 1.18" x 0.63" x 0.24" (30 x 16 x 6 mm) weight: 0.18 oz. (5 g)
Sale VELLEMAN SD Card Logging Shield 2 pack

VELLEMAN SD Card Logging Shield 2 pack, VMA304

Regular Price: $4.30

Your Price: $2.99

100% compatible with Arduino® Capable of holding up to 2gb of extra memory Specifications: voltage: 3.3 V - 5 V Protocol: SPI dimensions: 2.05" x 1.18" x 0.47" (52 x 30 x 12 mm) weight: 0.28 oz. (8 g) required library: SD.h
Sale VELLEMAN Soil Moisture Sensor & Water Level Sensor

VELLEMAN Soil Moisture Sensor & Water Level Sensor, VMA303

Regular Price: $4.35

Your Price: $1.99

voltage: 5 VDC dimensions: 65 x 20 mm
Sale VELLEMAN DS1302 Real Time Clock Module 2 pack

VELLEMAN DS1302 Real Time Clock Module 2 pack, VMA301

Regular Price: $4.45

Your Price: $2.99

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
Sale VELLEMAN 3 x 4 Matrix Keypad for Arduino

VELLEMAN 3 x 4 Matrix Keypad for Arduino, VMA300

Regular Price: $3.20

Your Price: $1.99

dimensions: 2.76" x 3.03" x 0.04" (7 x 7.7 x 0.1 cm) connection : 3 col - 4 row, 7 pin connection cable length: 3.54" (9 cm) weight: 0.22 oz. (6.25 g) Library : keypad.h
Sale VELLEMAN 3-axis Digital Acceleration Sensor Module -MMA7455

VELLEMAN 3-axis Digital Acceleration Sensor Module -MMA7455, VMA208

Regular Price: $6.25

Your Price: $1.99

+-2g/+-4g/+-8g dynamically selectable full-scale Output Data Rates (ODR) from 1.56 Hz to 800 Hz 12-bit and 8-bit digital output I2C digital output interface (operates to 2.25 MHz with 4.7 kO pullup) two programmable interrupt pins for six interrupt source Three embedded channels of motion detection Orientation (Portrait/Landscape) detection with set hysteresis High Pass Filter Data available real-time supply voltage: 1.95 V - 3.6 V interface voltage: 1.6 V - 3.6 V current consumption: 6 µA - 165 µA

VELLEMAN 1 Second to 60 Hour Pulse-Pause Timer Module, VM188

$26.95
wide timing range easy time setting start with 'pulse' or 'pause' 'single shot' or 'loop'-selection applications: blinking of lights pulsed operation of buzzers automatic irrigation lawn sprinklers toilet flushing or ventilation battery charging time control cyclic operation of equipment power supply: 12-24VDC relay contact: 16A/230VAC max. dimensions: 80x45x22 mm / 3.15 x 1.78 x 0.86"

VELLEMAN Start Stop Timer (1s 60h), VM141

$24.35
wide timing range easy time setting LED animation during operation on-board START-STOP buttons non retriggerable power-on trigger is possible debounced buffered inputs avoid false triggering compact size front panel mountable adjustable delay: 1s - 60h power supply: 12VDC / 100mA NO/NC relay: 24VAC/DC 3A max. dimensions: 2.8 x 1.8 x 0.8"

VELLEMAN IR Remote Checker Module, VM139

$9.90
the easy way to check your IR remote for proper operation simple operation point the remote at the sensor and push any button 4 flashing LEDs indicate remote operation low power consumption power supply: 9V battery (not incl.) dimensions: 2.2 x 1.2 x 1.32"

VELLEMAN Adjustable Interval Timer Module, VM136

$11.95
blinking light, warning light video/photo single frame shooting slide projector control miniature models applications automated testing automated aging tests output relay with NO / NC contact: 3A pulse time adjustable: between 0.5 and 5s pause time adjustable: between 2.5 and 60s power supply: 12Vdc / 100mA dimensions: 1.6 x 3.4"

VELLEMAN 7 Watt Mono Audio Amplifier, VM114

$11.15
music power output: 7W / 4ohm output: 3.5Wrms / 4ohm or 2Wrms / 8ohm total harmonic distortion: 0.05% (1W / 1kHz) frequency response: 20Hz to 20kHz (-3dB) signal-to-noise ratio: 86dB (A weighted) input sensitivity: 40mV / 150Kohm overload and short-circuit protected supply voltage: 15V DC (8 to 18V DC possible) / 0.5A dimensions: 2.2 x 1.4"

VELLEMAN Piezo Electric Ceramic Buzzer 30VAC 1.5mA, TV4

$1.30
Tone type: piezo speaker Operating voltage: 30Vac Rated voltage: 15Vac Current consumption: 1.5mA Resonant frequency: 0.5-20 ± 0.5kHz Sound pressure level: 75dB Connector type: leads Body color: metal Weight: 0.11oz

OSEPP LM35 Temperature Sensor Module, TEMP-01

$8.95
Calibrated directly in Celsius (Centigrade) Linear + 10 mV/C Scale Factor 0.5C Ensure accuracy (at +25C) Suitable for remote applications Low cost due to wafer-level trimming Operates from 4 to 30V

OSEPP Sound Sensor Module, SOUND-01

$7.95
100% Arduino Compatible Wide supply voltage range: 3v-5V 4mA current drain Analog voltage measurement through SIG pin Frequency range: 10 ~ 55 Hz

OSEPP 101 Sensor Kit, SENS-01

$99.00
Kit comes with:  OSEPP Sensor Shield 3-Pin Jumper Wires mini USB Cable 9 Volt Battery Adaptor Female to Female Jumper Cables 4-Digit Touch Sensor Module Fan Motor Module Flame Sensor Module LED Modules Light Sensor Module Temperature Sensor Module Passive Infrared Sensor Module Piezo Sensor Module Potentiometer Sensor Module Push Button Module Reed Switch Sensor Module Voltage Sensor Module Ultrasonic Sensor Module
Sale VELLEMAN Temperature/Humidity Sensor Module

VELLEMAN Temperature/Humidity Sensor Module, VMA311

Regular Price: $4.30

Your Price: $2.99

Voltage: 5 VDC temperature range: 0 - 50 °C , error of +/- 2 °C Humidity: 20 - 90% RH +/- 5% RH error interface: Digital size: 39 x 23 x 10 mm.
Sale VELLEMAN Arduino Compatible Vibration / Shock Switch Module - 2pk

VELLEMAN Arduino Compatible Vibration / Shock Switch Module - 2pk, VMA312

Regular Price: $4.20

Your Price: $1.99

Voltage: 5 VDC connection: 3 pins, +(middle pin), ground and DO (data out) dimensions: 0.98" x 0.59" (25 x 15 mm) weight: 0.07 oz. (2 g)
Sale VELLEMAN PIR Sensor Module

VELLEMAN PIR Sensor Module, VMA314

Regular Price: $4.70

Your Price: $2.99

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

VELLEMAN BH1750 Digital Light Intensity Sensor Module, VMA341

$9.90
I2C bus interface spectral responsibility is approximately human eye response illuminance to digital converter wide range and high resolution. ( 1 - 65535 lx ) low current by power down function module contains 5V to 3.3V converter 50 Hz / 60 Hz light noise reject function no need for any external parts adjustable measurement result for influence of optical window (this function allows to detect min. 0.11 lx, max. 100000 lx) small measurement variation very small influence of infrared supply voltage: 5 V voltage: 3.3 VCC operating temperature : -40°C - +85°C SDA sink current: 7 mA power dissipation: 260 mW dimensions : 20 x 30 mm

VELLEMAN Temperature Probe/Sensor 600C & MAX6675 Interface, VMA339

$19.90
direct digital conversion of type -K thermocouple output cold junction compensation simple SPI compatible interface 12 bit, 0.25° C resolution open thermocouple detection not for food contact thermocouple type: -K temperature range: 0 °C to 600 °C error limit: +/- 2.5 °C heat response time: less than 5 seconds cable length: 70 cm total probe length: 251 mm fixing thread: M12 x 1 probe diameter: 7 mm weight: 70 g interface supply voltage: 5 V

VELLEMAN VL53L0X Time-of-Flight Ranging & Gesture Detection Sensor, VMA337

$19.90
ST's VL53L0X laser-ranging sensor power supply: 3.3 - 5 VDC infrared emitter: 940 nm measuring range: 30 to 2000 mm ranging accuracy: +/- 3 % sampling time: <= 30 ms operating temperature: -20 to 70 °C interface type : I2C supply current: 10 mA XSHUT and GDPIO voltage: max 2.8 V

VELLEMAN NFC/RFID Shield for Arduino, VMA211

$29.90
chip: NXP PN532 working voltage: 3.3 V power voltage: 3.3 - 5.5 V max. power current: 150 mA working current (standby mode): 100 mA working current (write mode): 120 mA working current (read mode): 120 mA communication distance: 2.5 cm communication interfaces: SPI, I2C, UART software: ISO14443 type A and B cards / tags at 13.56 Mhz dimensions: 69 x 54 x 24 mm

OSEPP Voltage Sensor Module, VOLT-01

$5.95
100% Arduino Compatible Operating voltage output : 3.3V 5V MAX Input voltage range 0.0245V ~ 25V MAX Analog input
Sale VELLEMAN Electronic Parts Pack for Arduino

VELLEMAN Electronic Parts Pack for Arduino, VMA503

Regular Price: $34.90

Your Price: $19.99

What's Included: 1 Breadboard 1 Plastic plate 30 Breadboard jumper wire 8 Colored push buttons (red, green, blue and yellow) 40 Jumper pins 38 Colored LEDs (red, green, blue and yellow) 2 RGB LEDs 10 22pF capacitors 10 100pF capacitors 10 10nF capacitors 10 100nF capacitors 10 100µF capacitors 1 Trim potentiometer 2 LDR 2 Diodes 1 LM35 temperature sensor 1 Photodiode 1 SN74HC595N 8-bit shift registers 1 Resistor set 1 Servo motor 1 4-digit 7 segment display 1 1-digit 7 segment display 1 8 x 8 LED dot display

VELLEMAN MOSFET Driving Module IRF520, VMA411

$4.45
operating voltage: 3 to 5 VDC max. load voltage: 0 to 24 VDC input: SIG pin, logic level 3 to 5 VDC max. load current: 5 A (a heatsink is required for loads > 1 A) Used MOSFET: IRF520 dimensions: 34 x 21 x 16 mm

VELLEMAN 3.3 v / 5 v ttl Logic Level Converter Module, VMA410

$3.20
low side (3.3 V): 2 inputs and 2 outputs high side (5 V): 2 inputs and 2 outputs other connections: Vlow (3.3 V), VHigh (5 V) , pass-trough GND dimensions: 15 x 16 x 15 mm Breadboard compatible
Sale VELLEMAN RFID Read/Write Module

VELLEMAN RFID Read/Write Module, VMA405

Regular Price: $10.75

Your Price: $5.99

Operating Voltage: 3.3 VDC working current: 13 to 26 mA sleep current: < 80 uA peak current: < 30 mA working frequency: 13.56 MHz Supported card types: Mifare cards Interface / protocol: SPI Controller chip: MFRC522 Data transmission speed: Max. 10 Mbit / s dimensions: 66 x 40 x 7 mm includes: 2 tags (1 card , 1 fob)
Sale VELLEMAN DC-DC Voltage Boost Module 2 pack

VELLEMAN DC-DC Voltage Boost Module 2 pack, VMA403

Regular Price: $4.35

Your Price: $1.99

Input Voltage range: 2.5 to 5 VDC Output Voltage: 5 VDC Connection: solder pads dimensions: 34 x 16 x 8 mm
Sale VELLEMAN DC-DC Voltage Step-up Module LM2577

VELLEMAN DC-DC Voltage Step-up Module LM2577, VMA402

Regular Price: $9.10

Your Price: $5.99

input voltage: 3.5 to 35 VDC Output Voltage: 5 to 55 VDC (adjustable) max. input current: 3 A Continous input current: 2 A Chip: LM2577 dimensions: 43 x 30 x 12 mm

SPARKFUN HC-SR04 Ultrasonic Distance Sensor, SEN-15569

$3.95
Operating Voltage: 5V DC Operating Current: 15mA Measure Angle: 15° Ranging Distance: 2cm - 4m
Sale VELLEMAN Temperature Sensor Module 2 pack

VELLEMAN Temperature Sensor Module 2 pack, VMA320

Regular Price: $4.60

Your Price: $1.99

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
Sale VELLEMAN RGB LED Modules 2 pack

VELLEMAN RGB LED Modules 2 pack, VMA318

Regular Price: $4.20

Your Price: $1.99

Power Dissipation: R 60mW, G 95mW, B 95mW Peak Forward Current (0,1ms Pulse Width): 100 mA for each colour continous 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.