AA Battery Holder 4S

Superbright Ultra Violet LED UV Lamp 5mm 2500mcd

Superbright Ultra Violet LED UV Lamp 5mm 2500mcd **Damage from UV exposure is cumulative and increases your skin cancer risk over time. So be careful when you use it.

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

Brand: DFRobot

25mW Infrared Line Laser Light

Mini Cooling Fan 40x40x10mm

LM358P Dual Operational Amplifiers Op-Amp DIP8

12V 60W TEC1-12706 Thermoelectric Cooler Peltier

Get cold or heat up by simply reversing the polarity, used for numerous applications from CPU coolers to alternate power sources, or even for your own custom car drink warmer/cooler.

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

IR receiver Diode

74151 data selectors/mux

74151 Data selectors/multiplexers  contain full on-chip decoding to select the desired data source. 74151A selects one-of-eight data sources.

10K Ohm Potentiometer

TCRT5000L Reflective Optical Sensor

The TCRT5000 and TCRT5000L are reflective sensors which include an infrared emitter and phototransistor in a leaded package which blocks visible light. The package includes two mounting clips. TCRT5000L is the long lead version.

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...

Tolsen Cordless Screwdriver (Set)

Cordless Screwdriver With Set

Arduino SD card Module

Arduino SD card Module

DC 3v-6v to 400kV 400000V Boost Step-up Power Module High-voltage Generator

DC 3v-6v to 400kV 400000V Boost Step-up Power Module High-voltage Generator Input voltage: DC 3 V to 6 VInput current: 2 A - 5 AHigh-pressure type: the type of pulse currentOutput voltage: 400000 v(Please pay attention to safety)High-pressure discharge distance between 10 mm - 20 mmThe output high voltage wire length: 100 mm

Carlo Gavazzi Solid State Relays, RJ1A Series

Carlo Gavazzi Solid State Relays, RJ1A Series Item# RJ1A23D20U SSR SOLMINI 230V 20A 5-32VDC U

New ENC28J60 Ethernet LAN Network Module For Arduino

Chip board ENC28J60-I/SOThe board 25MHZ crystalThe network interface board HR911105A3.3 V power supply pinThe board size : 56 (mm) x 34 (mm)

IR Receiver Diode (3mm)

IR Receiver Diode (3mm) IR receiver diodes can be used in object detection applications like line follower,obstacle detecting robots etc.These were used in our IR Sensor Array.

Mini Data Logger Module with battery

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

Push Button Switch

3.6V Micro Hydro Generator

This G1/2 micro hydro generator provides you clean and renewable electricity. With the help of the regulator circuit inside, the output of this generator is stable at 3.6V.  Time to replace the Li-po batteries in your waterside projects with the green and more accessible hydropower. ** Battery Not Included **

Brand: Waveshare

Logic Level Converter

White Led 5mm(pack of 5)

Brand: DFRobot

Speech Synthesis Shield for Arduino

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. 

5 mm Yellow LED (Pack of 5)

Battery 9V

Battery 9V

Slip Ring - 6 Wire (1.5A) max 240V

Features: 6 wires Voltage: 210VDC / 240VAC Current Rating: 1.5A Operating Speed: 250RPM Compatible with data bus protocols Transfers analog and digital signals

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

PL2303 USB to TTL Converter Windows 7 & 10 Compatible

Breadboard Jumper Wire Set

This set of jumper wires can help you remove the clutter on your breadboard