Sensors & Transducers

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VELLEMAN 1 Amp Lithium Battery Charging Board 2pk, VMA321

$4.15
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)

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

$4.20
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)

VELLEMAN Temperature/Humidity Sensor Module, VMA311

$4.30
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.

VELLEMAN Sound Sensor Module, VMA309

$4.20
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)

VELLEMAN SD Card Logging Shield 2 pack, VMA304

$4.30
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

VELLEMAN DS1302 Real Time Clock Module 2 pack, VMA301

$4.45
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

VELLEMAN 3 x 4 Matrix Keypad for Arduino, VMA300

$3.20
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

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

$4.99
+-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

$19.99
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 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"

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

$79.95
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

VELLEMAN PIR Sensor Module, VMA314

$4.70
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 IR Transmitter Modules 2 pack, VMA316

$4.35
max. current: 20 mA 940nm wavelength Connection: 3 pins, only GND (-) and S is used weight: 2 g dimensions: 35 x 15 x 8 mm Attention: There is no current limiting resistor on the module.

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

VELLEMAN Electronic Parts Pack for Arduino, VMA503

$34.90
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

VELLEMAN RFID Read/Write Module, VMA405

$10.75
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)

VELLEMAN DC-DC Voltage Boost Module 2 pack, VMA403

$4.35
Input Voltage range: 2.5 to 5 VDC Output Voltage: 5 VDC Connection: solder pads dimensions: 34 x 16 x 8 mm

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

$9.10
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

VELLEMAN Temperature Sensor Module 2 pack, VMA320

$4.60
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

VELLEMAN RGB LED Modules 2 pack, VMA318

$4.20
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.

VELLEMAN IR Receiver 2 pack, VMA317

$4.20
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

SPARKFUN Pulse Sensor, SEN-11574

$24.95
Kit Includes: Pulse Sensor Board 24-inch Color-Coded Cable with Standard Male Headers Ear Clip for Earlobe Heart Rate Measurement Velcro Finger Strap Transparent Stickers to Protect Sensor