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Ideal for use with Arduino and other microcontrollers, this relay module uses data signals to switch a 5V relay. Onboard LED indicators light when relay is switched. Screw terminals for relay outpu... CAT# RLM-1
$4.50 each
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Easy to build, only 2 wires to connect (connect after ignition). Uses multi colour 3mm LED... green: battery OK, Slow pulsing (green): battery OK or charging, red: battery voltage is low, red blink... CAT# MK-189
$9.95 each
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The Basics Lite: 14 Exciting Labs --- eTron Circuit Labs. 28 page booklet. Includes a solderless breadboard and parts to complete 14 educational electronics labs. CAT# KT-95
$17.95 each
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Power up to four 1W or two 3W high-power LEDs (not included). Delivers accurate constant current required by most high-power LEDs. High efficiency due to switch mode principle. Built-in rectifier f... CAT# MK-8071
$16.95 each
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Ideal for use with Arduino and other microcontrollers, this relay module uses data signals to selectively switch two 5V relays, each capable of handling 10A loads. Onboard LED indicators light when... CAT# RLM-2
$6.00 each
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Small but powerful amplifier suits a wide range of applications such as: microphone amp, for doorbells, melody generators, intercom, sound effects, earphones, radio receivers, PC sound card and mus... CAT# MK-8066
$14.95 each
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Ideal for use with Arduino and other microcontrollers, this relay module uses data signals to selectively switch four 5V relays, each capable of handling 10A loads. Onboard LED indicators light wh... CAT# RLM-4
$11.50 each
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The Basics: 40 Exciting Labs --- eTron Circuit Labs. 88 page, soft-cover book. An immersive, hands-on curriculum of fun and illustrative electronics projects that teaches the fundamentals of elec... CAT# BK-52
$15.95 each
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The Basics: 40 Exciting Lab --- eTron Circuit Labs. An immersive, hands-on curriculum of fun and illustrative electronics projects that teaches the fundamentals of electronics. Designed to be S... CAT# KT-40
$24.95 each
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Similar to our relay module, RLM-1, this 5Vdc 10A opto-isolated relay module can be triggered by high or low signal by changing jumper position. Onboard LEDs indicate power and switching status. ... CAT# RLM-21
$4.75 each
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Velleman # K4001. Small amplifier constructed around a TDA2003 IC, capable of delivering 4 Watts RMS at 4 Ohms. Music power: 7 W @ 4 ohms. RMS output: 3.5 Watts @ 4 Ohms / 2 Watts @ 8 Ohms. Frequen... CAT# MK-4001
$19.95 each
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Velleman # MK111. For intermittent operation of circuits and equipment. Use for blinking light control, slide projector control etc. Pulse time adjustable between 0.5 and 5 seconds. Pause time adju... CAT# MK-111
$9.95 each
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Two potentiometers adjust the flash rate of two LEDs. 9V operation. Battery not included. Note: Kits cannot be returned or exchanged once assembly has begun. CAT# MK-1021
$4.95 each
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This alcohol sensor is suitable for detecting alcohol concentration on your breath, just like your common breathalyzer. It has a high sensitivity and fast response time. Sensor provides an analog r... CAT# SEN-3
$4.95 each
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by Brent Edstrom. 420 pages, soft cover. Oxford University Press. Arduino, Teensy, and related microcontrollers provide a virtually limitless range of creative opportunities for musicians and h... CAT# BK-32
$35.00 each
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It's blue! It's thin (0.8mm)! It's the Arduino Pro Mini! SparkFun's minimal design approach to Arduino. This is a 5V Arduino running the 16MHz bootloader. Arduino Pro Mini does not come with connec... CAT# ARD-18
$9.95 each
10 or more    $8.95 each
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It's blue! It's thin (0.8mm)! It's the Arduino Pro Mini! SparkFun's minimal design approach to Arduino. This is a 3.3V Arduino running the 8MHz bootloader. Arduino Pro Mini does not come with conne... CAT# ARD-14
$9.95 each
10 or more    $8.95 each
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The ProtoShield mates with the Arduino USB board and gives the user a small soldering area, two general LEDs, access to a BlueSMiRF socket, a general pushbutton switch, and most important of all - ... CAT# APS-14
$9.95 each
10 or more    $8.95 each
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These headers are made to work with the Arduino Main Board, Arduino Pro, and the Arduino Mega. They are the perfect height for clearing the USB-B connector and great for stacking multiple shields.... CAT# HDR-07
$1.50 each
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An ATmega328 in DIP package, pre-loaded with the Arduino Optiboot (Uno 16MHz) Bootloader. This will allow you to use Arduino code in your custom embedded project without having to use an actual Ard... CAT# ARD-24
$5.50 each
10 or more    $4.95 each
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Black text on green background. Utilizes the extremely common HD44780 parallel interface chipset. Interface code is freely available. LED backlight. 3.15" x 1.425". CAT# LCD-255
$13.95 each
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Velleman # K7300.Versatile kit allows charging of NiCd and NiMH batteries of different voltages and capacities. Settings for rapid and normal charge rates. Also has a feature that discharges the ba... CAT# MK-173
1 Available
$24.88 each
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Gomcu CZ-HC-05 Bluetooth module. 33 x 18 x 5mm pc board with 6-pin header. Can be set for master or slave operation. Onboard 3.3V regulator. Operates on 3.3-6V. For use with Arduino. CAT# HC-05B
$9.00 each
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Simple do-it-yourself kit provides hours of fun. The aim of the game is to use the 4 pushbuttons to repeat a randomly generated pattern shown on the 4 LEDs. The pattern is played both visually and ... CAT# MK-112
$9.95 each
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Basic breakout board for FTDI's popular USB to UART IC. VCCIO is tied to 3.3V through a solder jumper. You have the option of clearing this jumper and tying the VCCIO pin to 5V or any other IO vol... CAT# ARD-718
$14.95 each
10 or more    $13.46 each
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This is a simple-to-use Carbon Monoxide (CO) sensor, suitable for sensing CO concentrations in the air. Detects CO-gas concentrations anywhere from 20 to 2000ppm. This sensor has a high sensitivit... CAT# SEN-7
$7.25 each
10 to 99    $6.53 each
100 or more    $5.80 each
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AT Mega 328 MCU. 5V 16MHz. The Deek-Robot Pro Mini is nearly identical to the Sparkfun Arduino Pro Mini. It has all of the I/O of the Arduino Uno, plus two more analog inputs. There is only a 5V... CAT# AM-328P
$6.50 each
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Dallas DS18B20 temperature sensor chip mounted on a pc board with pins for plug-in use with Arduino and other platforms. Unique 1-Wire interface requires only one port pin for communication. Requ... CAT# TS-12
$5.75 each
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Digital Theory by ETron Circuit Labs is electronic education curriculum featuring 35 exciting labs. STEM (Science, Technology, English, Math) educational compliant. Digital Theory picks up where T... CAT# KT-35
$41.95 each
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Digital Theory by ETron Circuit Labs is electronic education curriculum designed for the 21st century student. Featuring 35 exciting labs, Digital Theory picks up where The Basics leaves off teach... CAT# BK-97
$14.95 each
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Drive your friends (or enemies) crazy. Automatically comes on when it gets dark. Adjustable chirp rate, light sensitivity and tone. 9V operation. Battery not included. Note: Kits cannot be retur... CAT# MK-104
$8.95 each
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This is a basic breakout board for the FTDI FT232RL USB to serial IC. The pinout of this board matches the FTDI cable to work with official Arduino and cloned 5V Arduino boards. It can also be used... CAT# ARD-76
$14.95 each
10 or more    $13.46 each
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Analog gas sensor for Arduino and other development boards. Onboard MQ2 sensor is suitable for detecting LPG, i-butane, propane, methane , alcohol, Hydrogen, smoke. High sensitivity and fast respon... CAT# GS-29
$11.95 each
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Simple breakout board for the CAT#s SEN-3 and SEN-7 gas sensors. All you need is VCC at 5V, GND, and a resistor to an ADC, that is it. Note: This is the PCB only. 16.8mm diameter. CAT# SEN-BB
$0.95 each
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Velleman Kits # KNS7. Fun with gears and motors. Small 3 Vdc motor, metal bracket and axles, and an assortment of small plastic gears and collars to produce a gear train of various ratios. Note: ... CAT# GR-84
$11.95 each
This product is currently on Back Order and should be available after 08/17/17
HC-05 / ZS-040 Bluetooth module. 37 x 16.5 x 4.0mm pc board with 6-pin header. Can be set for master or slave operation. Onboard 3.3V regulator. Operates on 3.3-6V. For use with Arduino. CAT# HC-05
$8.50 each
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The RHT03 (also known by DHT-22) is a low cost humidity and temperature sensor with a single wire digital interface. The sensor is calibrated and doesn't require extra components so you can get rig... CAT# SEN-16
$10.95 each
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The SparkFun Inventor's Kit is a great way to get started with programming and hardware interaction with the Arduino programming language. Includes everything you need to complete 15 circuits that ... CAT# SFA-22
$99.95 each
10 or more    $89.96 each
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Announce visitors, warn against burglars, set boundaries, for science projects, with audible (85dB) and visible (LED) alert. Range: 3.3ft to 13ft. Power supply: transmitter: 9V DC / 50mA max. Recei... CAT# MK-120
$10.75 each
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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. Power supply: 9V battery... CAT# MK-137
23 Available
$7.50 each
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Build this variable speed led chaser. 10 leds flash sequentially at whatever speed you set them for. Easy to build kit includes pc board, parts and instructions. Ideal for special lighting effects,... CAT# AEC
$6.95 each
10 or more    $6.50 each
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Two L.E.D.'s flash in unison when a 9 volt battery is attached. This kit includes a p.c. board, all the parts and instructions to make a simple flasher circuit. A quick and easy project for anyone ... CAT# LEDKIT
$2.50 each
100 or more    $2.25 each
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TP4056 charger for up to 1A Lithium Ion rechargeable battery. Input: 4.5-5.5Vdc. Suitable for USB-powered charger. Micro-USB input jack. 1.05" x 0.75" x 0.20". CAT# BC-4056
$3.75 each
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Bi-directional logic level converter safely steps down 5V signals to 3.3V and steps up 3.3V to 5V at the same time. This level converter also works with 2.8V and 1.8V devices. Each converter has th... CAT# LLC-46
$2.95 each
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Operates at safe voltage level. Makes lamps flash to the rhythm of the music. Usable for halogen bulbs. Optically isolated speaker input. Adjustable sensitivity. Can be used in the car, if the lamp... CAT# MK-114
$13.95 each
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Based on the ATmega2560, it has 54 digital input/output pins (of which 15 can be used as PWM outputs), 16 analog inputs, 4 UARTs (hardware serial ports), a 16 MHz crystal oscillator, a USB connecti... CAT# ATM-2560
$28.50 each
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Velleman# K7102. Ideal for locating metal pipes and objects in walls or ceilings. An LED indicates if a metal object is in the vicinity. If an audible signal is desired, space is provided for a buz... CAT# MK-7102
$18.00 each
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SM-S2309R miniature servo. 360° rotation. Bidirectional. Dimensions: 23.8 x 12.3 x 21.6mm high (0.94" x 0.49" x 0.86"). Torque: 1.3kg/cm (18.05oz/in) @ 6V. Speed: 108 RPM @ 6V. Weight 10g.... CAT# DCS-113
$9.00 each
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The TB6612FNG motor driver can control up to two DC motors at a constant current of 1.2A (3.2A peak). Two input signals (IN1 and IN2) can be used to control the motor in one of four function modes ... CAT# MD-57
$8.95 each
10 or more    $8.06 each
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SEN-08630 RoHS Compliant. This is a simple to use motion sensor. Power it up and wait 1-2 seconds for the sensor to get a snapshot of the still room. If anything moves after that period, the alarm ... CAT# PIR-6
$9.95 each
10 or more    $8.96 each
Quantity:  
 
 
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