AA Battery Holder 4S

LF356n Operational Amplifiers

IR Infrared Remote Decoder Encoding Transmitter & Receiver Wireless Module

JF-0530B Pull Push Type Electric Solenoid Electromagnet 10mm 5N DC12V

Product Name : DC Solenoid Electromagnet;Model : JF-0530B;Rated Voltage : DC 12V RatedCurrent : 300mA;Action Form : Pull Push Type;Rated Stroke & Force : 10mm, 5N Body Size : 30 x 15x 15mm/1.2"x 0.59"x 0.59"(L*W*H);Pluger Dia. : 56mm/ 2.2" Cable Length : 20cm/ 7.9";Material : Metal, Electronic Parts Weight : 32g;Package Content : 1 x DC Solenoid...

Sonoff 4CH R2 Smart Switch Wifi

Sonoff 4CH R2 Smart Switch Wifi Power Supply: 90V~250V AC(50/60Hz) Max. Current: 10A/gang Max. Power：2200W/gang, 2200W/Total Wireless Standard: 802.11 b/g/n Security Mechanism: WPA-PSK/WPA2-PSK Enclosure Material: Fire-retardant ABS V0

5V LED Traffic Light Module

5V LED Traffic Light Module

Brand: SparkFun Electronics

LIDAR-Lite v3

Features: Range: 0-40m Laser Emitter Accuracy: +/- 2.5cm at distances greater than 1m Power: 4.75–5V DC; 6V Max Current Consumption: 105ma idle; 130ma continuous Rep Rate: 1–500Hz Laser Wave Length/Peak Power: 905nm/1.3 watts Beam Divergence: 4 m Radian x 2 m Radian Optical Aperture: 12.5mm Interface: I2C or PWM

IR Transmitter Diode

3×4 Flexible Keypad

This keypad has 12 buttons, arranged in a 3×4 grid. It’s made of a thin, flexible membrane material  The keys are connected into a matrix, so you only need 7 microcontroller pins (3-columns and 4-rows) to connect the key pad.

Ohm (Ω) 1/4w Resistors - Pack of 5

Choose your desire Resistor value from below: 

ON/OFF Switch 12VDC

RS485 USB-485 Converter Adapter Support Win7 XP Vista Linux Mac OS

 RS485 USB-485 Converter Adapter Support Win7 XP Vista Linux Mac OS

Brand: Waveshare

Liquid Level Sensor for Arduino (WaveShare)

Specifications Detection depth: 48mm Power: 2.0V ~ 5.0V Dimension: 19.0mm * 63.0mm Mounting holes size: 2.0mm

JST SH Jumper 4 Wire Assembly - 8"

Description: This is a simple four wire cable. Great for jumping from board to board or just about anything else. These cables mate with the connectors listed below. They have bare wires on one end and a 4-pin JST SH connector on the other end with a mating socket. Compatible With:  Fingerprint Scanner - TTL (GT-511C3) & Fingerprint Scanner - 5V TTL...

PL2303 USB to TTL Serial Converter (Windows 7 & 10 Compatible)

PL2303 USB to TTL Converter Windows 7 & 10 Compatible

Brand: SparkFun Electronics

EL Wire - Starter Kit Retail

4x4 Keypad - 16 Key - Matrix Membrane Type

4 x 4 Matrix Membrane Keypad Size: 7cm X 7.5cm 8 pin connector Adhesive mounting (sticker on the back side) Maximum Circuit Rating: 35VDC, 100mA Operation Temperature: 0 to +60 centigrade Humidity: 40 centigrade, 90%-95%, 240 hours Fexible Circuit Length: Approx. 3.3 inch / 83 mm

UA741CN Operational Amplifier

ISD1820 Sound Voice Recording Playback Module

Mini Data Logger Module with battery

MINI DATA LOGGER DS1307, MICRO SD, BACKUP BATTERY, I2C, SPI, ARDUINO

Weighing Sensor 24 Bit HX711 Dual-Channel

Weighing Sensor 24 Bit HX711 Dual-Channel Precision A/D Module Pressure Sensor. This module uses 24 high precision A/D converter chip HX711. It is a specially designed for the high precision electronic scale design, with two analog input channel, the internal integration of 128 times the programmable gain amplifier. 

ESP8266 ESP-01 WIFI Wireless Transceiver Send Receive LWIP AP+STA M70

ESP8266 is a wifi SOC (system on a chip) produced by Espressif Systems. It is an highly integrated chip designed to provide full internet connectivity in a small package. This is a module based on ESP8266 chip. Please see supplied pinout photo and schematics for connectivity details. There is a lot of online resources available for this module. 

Mini Breadboard

Description: This black Mini Breadboard is a great way to prototype your small projects! With 170 tie points there’s just enough room to build and test simple circuits; They’re also great for breaking out DIP package ICs to jumper wires! If you run out of room, no worries, these mini breadboards can be snapped together to form larger stretches of board...

Brand: SparkFun Electronics

Makey Makey Kit

Description: This is the same product as the Makey Makey Standard Kit. The difference is this version comes in fancy clamshell packaging meant for our distributors that need it. Regular customers are welcome to order, but we want to limit the amount of extra packaging finding its way into the trash heap.

DC-DC 9V/12V/24V to 5V USB Step Down Power Module 2A

DC-DC 9V/12V/24V to 5V USB Step Down Power Module 2A

Brand: SparkFun Electronics

Raspberry Pi - 2 Model B Enclosure (Black)

Raspberry Pi - Model B+ Enclosure (Black) Description: The Raspberry Pi Model B+ is THE new favorite of development platforms, so the last thing that you’d want is for something bad to happen to it. Why not protect it with one of these snazzy black plastic enclosures?

1k ohm Variable Pot Resistor 102

1K OHM 102 VARIABLE RESISTOR

USB Saleae Compatible 24MHz 8Channel Logic Analyzer Latest Support 1.1.15

Precision Real Time Clock Module DS3231 AT24C32 I2C

Precision Real Time Clock Module DS3231 AT24C32 I2C

Veroboard

 6.5x14.5cm Stripboard Veroboard Uncut PCB Platine Single Side Circuit Board.  

Line Following Robot Kit